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Essential Oils Usage on Vitis vinifera L.,from the Vineyard to Post-Harvest:Advantages,Limitations,and Future Perspectives
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作者 Pamela Lippi AlešEichmeier +2 位作者 Sergio Puccioni Giovan Battista Mattii Eleonora Cataldo 《Phyton-International Journal of Experimental Botany》 2025年第4期1047-1072,共26页
The search for environmentally friendly approaches in viticulture is increasing,driven by the need to minimize the ecological footprint of conventional methods while ensuring high grape quality and stable yields.Among... The search for environmentally friendly approaches in viticulture is increasing,driven by the need to minimize the ecological footprint of conventional methods while ensuring high grape quality and stable yields.Among the various alternatives explored,essential oils(EOs)have drawn attention due to their natural origin and bioactive properties,including antimicrobial,antifungal,and insect-repellent effects.They are characterized by numerous utilisations,from managing diseases and pests in vineyards to post-harvest applications to preserve and prolong storage duration.This innovative review examines,for the first time,the topic of EOs on viticulture,embracing their multiple uses and considering their potential influence on key quality indicators such as fruit firmness,total soluble solids,and phenolic composition.Research findings indicate that EOs can contribute to suppressing fungal development and pest invasions,thereby reducing post-harvest deterioration.However,their effectiveness is influenced by factors such as chemical composition,mode of application,and environmental conditions.Although EOs align well with the principles and broader sustainability goals of integrated pest management(IPM),several obstacles remain,including issues related to their stability,degradation rate,potential phytotoxic effects,and regulatory constraints.In addition to the undoubtedly advantageous aspect for the vineyard,the final chapter of this review focuses right on these obstacles,emphasizing the need to have long-term post-application scientific data on wine organoleptic quality and thus their presence or absence in the must. 展开更多
关键词 Biocontrol agents FUNGICIDE GRAPEVINE grape and wine quality natural pesticides sustainable viticulture
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The impact of climate change on polyphenols in mountain grapes(Vitis amurensis Rupr.)in Northeast China:A mini review
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作者 Xiaoxiao Xu Wei Zheng Xu Zhao 《Journal of Polyphenols》 2025年第2期70-78,共9页
Climate change is significantly altering viticultural practices worldwide,with profound implications for the accumulation of polyphenolic compounds that determine wine’s sensory and health properties.This review summ... Climate change is significantly altering viticultural practices worldwide,with profound implications for the accumulation of polyphenolic compounds that determine wine’s sensory and health properties.This review summarizes the effects of climate change,particularly rising temperatures,shifting precipitation patterns,and altered light conditions-on polyphenol synthesis in Vitis amurensis(V.amurensis)grapes from Northeast China,the country’s highest-latitude wine region.Key findings reveal that:(1)Temperature increases accelerate phenological stages but differentially impact polyphenols,suppressing anthocyanins and flavonols while promoting tannins;(2)Precipitation variability induces water stress that can enhance anthocyanin content under moderate drought but reduce quality during extreme events;(3)Declining sunshine duration may limit polyphenol production,though certain cultivars(e.g.,Beibinghong)exhibit adaptability to low light conditions.The region’s unique climatic trends-stronger winter warming and reduced summer precipitation-paradoxically offer potential benefits by extending the growing season while minimizing heat stress during critical ripening periods.It is highlighted how V.amurensis,with its cold hardiness and naturally high polyphenol content(notably anthocyanins and resveratrol),could become increasingly valuable under climate change.However,strategic adaptation through cultivar selection,vineyard management,and stress-responsive breeding will be critical to maintain wine quality.This synthesis provides a framework for understanding climate-polyphenol dynamics in cool-climate viticulture and outlines research priorities to safeguard the future of Northeast China’s distinctive wine industry. 展开更多
关键词 climate change adaptation grape polyphenols Vitis amurensis cool-climate viticulture Northeast China
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New Scenarios for a Shift towards Agroecology in Viticulture
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作者 Nawel Aouadi Francis Macary +1 位作者 Laurent Delière Jean-Philippe Roby 《Agricultural Sciences》 2021年第10期1003-1033,共31页
In the light of its negative impacts on the environment and human health, conventional agriculture is currently facing new challenges;for example, reducing pesticide reliance, improving biodiversity, adapting to clima... In the light of its negative impacts on the environment and human health, conventional agriculture is currently facing new challenges;for example, reducing pesticide reliance, improving biodiversity, adapting to climate change and reconciling winegrowers with consumers, which require changes to be made to vineyard management. A shift towards more sustainable agriculture via the development of agroecological systems may be key to meeting these environmental, economic and social challenges. This study aimed to evaluate the performance of existing viticultural systems, as well as that of three new scenarios that we built to change conventional vine production systems and their related practices. The end aim is to adopt the principles of agroecology, and more virtuously, to ensure that vine production remains in line with societal expectations. First, thirty-eight different viticultural systems were chosen. Three realistic scenarios for changing these production systems were then built by working with stakeholders and incorporating the best practices that had been identified in the vineyard. Conventional practices were optimised in the first scenario and an agroecological approach was adopted for the other two scenarios: an Agroecological scenario (using synthetic chemicals) and an Agroecological-Bio scenario (organic system). All three scenarios were based on a combination of good practices which contribute to enhancing vineyard biodiversity, and which thus restore biological regulation and in turn reduce pesticides. The viticultural systems performances have been evaluated with a methodology involving multicriteria decision aid using ELECTRE Tri-C and ELECTRE III methods. Seven evaluation criteria were selected which covered socio-economic performance (economic profitability, workload and system complexity) and environmental performance (pesticide pressure, pesticide ecotoxicity, agroecological practices and pesticide drift). The best performances were achieved by the two agroecological scenarios, and this methodology can be adaptable to different production systems everywhere in different viticultural regions. 展开更多
关键词 viticultural System AGROECOLOGY BIODIVERSITY PESTICIDES Multicriteria Decision Aid Methods ELECTRE Methods
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Viticulture in Argentina under extreme weather scenarios:Actual challenges,future perspectives
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作者 Eugenio Straffelini Natalia Carrillo +3 位作者 Carlos Schilardi Regina Aguilera Maria Jimena Estrella Orrego Paolo Tarolli 《Geography and Sustainability》 CSCD 2023年第2期161-169,共9页
Viticulture in Argentina is an important socioeconomic sector,reflected in a significant wine market and tourism.However,climate change and related extreme events are serious concerns.The main issues are heatwaves,hai... Viticulture in Argentina is an important socioeconomic sector,reflected in a significant wine market and tourism.However,climate change and related extreme events are serious concerns.The main issues are heatwaves,hail-storms,and heavy rainfall,resulting in damage to vineyards.While climate change impacts have already been discussed for regions such as the Mediterranean,the literature lacks an up-to-date overview of Argentine viticul-ture and potential mitigation solutions.In a country culturally and economically connected to the world of wine,it is strategic to bridge this gap to be prepared for a climatically adverse future.This perspective paper presents an overview of Argentine viticulture and its relationship to climate change.We focus on the Mendoza region,one of the most productive areas and home to cultural landscapes where internationally recognized wines are produced.Climate change is already occurring,a fact we observed by analyzing data from the past decades.We discussed how heatwaves in the lowlands drive farmers to move to the Andes slopes looking for more favorable conditions.But new threats arise,such as extreme rainfall.Due to surface hydrological processes,they can cause land degradation and compromise vineyards.We investigate these phenomena in detail,highlighting how they represent a growing challenge that must be addressed for the sustainable development of future viticulture in the area.Therefore,we propose mitigation strategies for more resilient production,drawing inspiration from the Sustainable Development Goals and suggesting a framework that can be extended to broader contexts worldwide。 展开更多
关键词 VITICULTURE WINE Climate change ADAPTATION ARGENTINA South America
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The Landscape Analysis of Viticulture and Enology in Georgia
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作者 Dali Nikolaishvili Tamar Mamukashvili +1 位作者 Manana Sharashenidze Davit Sartania 《Journal of Earth Science and Engineering》 2014年第11期667-674,共8页
Georgia has been the country of vines and wine since ancient times, and historically vine growing and wine making has performed the function of one of the leading branches of economy. The diverse and rich information ... Georgia has been the country of vines and wine since ancient times, and historically vine growing and wine making has performed the function of one of the leading branches of economy. The diverse and rich information about growing vines and producing wine in Georgia can be found in historical and modem scientific literatures as well. Javakhishvili reviewed 413 vine species from the ancient period in his work: "Economic History of Georgia". Nowadays there are more than 420 species in Georgia or 2.5% of the whole world assortment, from which 27 are for wine, 14 edible and 41 standard species. According to the ecological and economic conditions, Georgia is divided into 11 main regions from the viewpoint of specialization and concentration of vine growing, of which Kakheti, Kartli, Imereti, Racha and Lechkhumi are the most important regions. All these regions are both producers and users of grapes and wine. The climate of Kakheti is favorable to develop the vine industry here. They are: Rkatsiteli, Saperavi, Mtsvane, Kabeme and Khikhvi. Kakheti gives more than half of branded wines of the republic. Fifty-four percent of vineyards of the country are placed, and 65%-68% of total wines in Georgia are produced in Kakheti. 展开更多
关键词 VITICULTURE ECOLOGY landscape approach landscape-geographic analysis Georgia.
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Climate Change Favors Grapevine Production in Temperate Zones
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作者 Bruno Koch Fritz Oehl 《Agricultural Sciences》 2018年第3期247-263,共17页
Wine production has a long-standing history in Palatinate (Southwestern Germany), dating back to Roman times. Especially “Riesling”, but also several “Pinot” varieties gained major significance. Red wine varieties... Wine production has a long-standing history in Palatinate (Southwestern Germany), dating back to Roman times. Especially “Riesling”, but also several “Pinot” varieties gained major significance. Red wine varieties gained prominence over the last 20 years only, which may be a consequence of climate change. Our objective was to review temperature and rainfall data over the last 40 years, measured “on-winery” in Hainfeld and correlate these data with grapevine growth parameters: the development of bud break, flowering, veraison and harvest dates, yields and grape sugar concentrations of “Pinot Gris”, “Pinot Noir”, “Riesling”, “Silvaner” and “Müller-Thurgau”. Since the 1970s, bud break, flowering and veraison are 11 - 15, 18 - 22 and 16 - 22 days earlier;harvest dates are 25 - 40 days earlier. Sugar concentrations increased significantly, but yields decreased. Annual rainfall has not significantly risen, while the mean annual minimum and maximum air-temperatures rose by ~0.9°C, and by ~3.4°C, respectively, resulting in an average increase of the mean annual temperature of ~2.1°C. Remarkably, both mean monthly minimum and maximum temperatures rose especially in springtime, which should have been the driver for earlier bud break and flowering. A change in the climatic conditions, therefore, appears to be one of the key reasons for more favorable grapevine production in Palatinate, especially for “Pinot Noir”, which showed the highest increase in sugar concentrations. The Huglin-index, a measure for the suitability of growing specific grapevine varieties in given environments, increased from 1685 to 2063. According to this index, the climate change may be favorable already for growing grape varieties so far rarely grown in temperate zones, such as “Cabernet Sauvignon”, “Syrah” and “Tempranillo” that are more suited to warmer, Mediterranean climates. 展开更多
关键词 Central EUROPE CLIMATIC Diversity VITICULTURE VITIS VINIFERA
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Performance of interspecific grapevine varieties in north-east Italy
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作者 Pacifico Daniela Gaiotti Federica +1 位作者 Giusti Mirella Tomasi Diego 《Agricultural Sciences》 2013年第2期91-101,共11页
A renewed interest in interspecific varieties has recently emerged, due mainly to producers and consumers more aware of organic farming and impact of phytochemicals in the environment. The assessment of 19 European Vi... A renewed interest in interspecific varieties has recently emerged, due mainly to producers and consumers more aware of organic farming and impact of phytochemicals in the environment. The assessment of 19 European Vitis hybrids was investigated in an area mostly dedicated to viticulture, the North-EasternItaly. Major agronomic traits, yield, quality characteristics and disease resistance were evaluated during a three-year period (2004 to 2006). Wine sensory analyses were performed and compared with international Vitis vinifera varieties. Even though no genotypes resulted adequate for market release, the results obtained confirm the potential importance of hybrids in an “eco-friendly” viticulture and identify the genotypes interesting for further investigation and breeding: GF 138-3 and GA 48-12 showed good agronomic performance, resistance to more grape diseases and high quality wine. 展开更多
关键词 HYBRIDS Organic VITICULTURE Yield Quality Disease Resistance
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Evaluation of Some New Wine Grape Cultivars under S^o Francisco Valley Conditions
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作者 Patricia Coelho de Souza Leao Bruna Thais Goncalves Nunes +2 位作者 Emille Mayara Carvalho de Souza Jessica Islane de Souza Rego Jose Henrique Bemardino do Nascimento 《Journal of Agricultural Science and Technology(B)》 2017年第5期320-325,共6页
This study aimed to evaluate the performance and characteristics of the grapes as subsidies to the recommendation of new wine grape cultivars for the S^o Francisco Valley. An experiment was carried out in Petrolina, P... This study aimed to evaluate the performance and characteristics of the grapes as subsidies to the recommendation of new wine grape cultivars for the S^o Francisco Valley. An experiment was carried out in Petrolina, Pernambuco state, during four seasons in 2014 and 2015 and the treatments were represented by 10 cultivars and three breeding selections: Grenache, Tempranillo, Merlot, Cabernet Sauvignon, Malbec, Petit Verdot and Syrah for red wines and Sauvignon Blanc, Chardonnay, Chenin Blanc and breeding selections 46, 14 and 47 for white wines. The experimental design was a randomized block with four replicates and two useful plants per plot. The following variables were evaluated: sprouting, bud fertility rate, Ravaz index, production, number of clusters, weight, length and width of cluster, weight and volume of 100 berries, soluble solids and titratable acidity. A better balance between production and vigour was obtained in Grenache, Merlot and Tempranillo cultivars, presenting values of 7.56, 6.50 and 5.93, respectively, for Ravaz index. Grenache, Chenin Blanc and Tempranillo were the most productive cultivars with average yields estimated at 10.4, 8.7 and 8.4 ton/ha/season. Selection 14 had longer, wider and less compact clusters, which can reduce clusters rottenness. The percentage of sprouting ranged from 38.13% in selection 14 to 77.6% in cv. Chenin Blanc. The average index of bud fertility was 0.79 cluster/bud, with no significant differences among cultivars. Greater potential for sugar accumulation was found in the selections 14, 46 and 47, while the titratable acidity ranged from 0.63% in cv. Merlot to 0.89% in selection 47. Grenache and Tempranillo have showed potential to obtain adequate yield and balanced vines, while Sauvignon Blanc, Chardonnay, Cabemet Sauvignon, Malbec and Petit Verdot presented low yield being necessary to select clones more productive and well adapted to the tropical conditions. Further information about the quality of grapes and wines should be added to these results to allow the recommendation of new cultivars or breeding selections of wine grapes for the Sao Francisco Valley. 展开更多
关键词 Tropical viticulture wine grape yield.
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Canopy Management of Table Grapes Cultivar in Tropical Conditions
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作者 Patricia Coelho de Souza Leao Maria Auxiliadora Coelho Lima 《Journal of Agricultural Science and Technology(B)》 2018年第4期228-233,共6页
The production of some seedless table grapes under tropical conditions presents low bud fertility on the main canes and low yield, which leads to the need of pruning in the lateral shoots. The objective of this study ... The production of some seedless table grapes under tropical conditions presents low bud fertility on the main canes and low yield, which leads to the need of pruning in the lateral shoots. The objective of this study was to evaluate the influence of the canopy management for the formation of lateral shoots associated with dellsity of canes on the yield and quality of grapes "Sugraone" in the Sao Francisco Valley. The experiment was carried out over two growing seasons (2011-2012) in a commercial vineyard of Sugraone in Petrolina, Pernambuco state, Brazil. The treatments consisted of two canopy managements (shoot topping associated to elimination of lateral shoots and shoot topping and formation of lateral shoots) combined with two to three densities of canes after pruning (1.8, 2.8 and 3.8 canes/m^2). The formation of "lateral shoots" increased yield and number of clusters per plant during two consecutive growing seasons, besides using 2.8 varas/m^2 resulted in highest yields only in 2011 growing season. The variables mass bunch, mass berry, soluble solids (SS), soluble sugar, titxatable acidity (TA) and pulp firmness were not affected by treatments, while the attributes related to color, as like brightness and hue angle of the skin, and total extractable polyphenols content were influenced by canopy management, especially in the 2012 growing season. Shoot topping to induce formation of laterals shoots associated with density of 2.8 canes/m2 increased the yield of seedless grapes cultivar Sugraone grown in the Sao Francisco Valley, not significantly affecting the quality of the grape. 展开更多
关键词 Vitis vinifera L. seedless grapes tropical viticulture.
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High doses of polypropylene and polyvinyl chloride microplastics affect the microbial community and nutrient status of vineyard soils
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作者 Erika Jez Elisa Pellegrini +2 位作者 Melita Sternad Lemut Maria De Nobili Marco Contin 《Frontiers of Environmental Science & Engineering》 2025年第1期97-113,共17页
The escalating use of plastic materials in viticulture causes release of microplastics(MPs)into vineyard soils.This study examines the impact on soil health of polypropylene(PP)raffia and polyvinyl chloride(PVC)tube s... The escalating use of plastic materials in viticulture causes release of microplastics(MPs)into vineyard soils.This study examines the impact on soil health of polypropylene(PP)raffia and polyvinyl chloride(PVC)tube strings,commonly mulched into the topsoil after use.A 120-d incubation experiment was conducted with soils exposed to high doses(10 g/kg)of microplastics(MPs)from standard,new and used strings.The study investigated alterations in the microbial community,bioavailability of macronutrients(NH4+and NO_(3)^(-),P,K,Ca,Mg),and bioavailability of micronutrients(Cu,Zn,Fe,Mg).The presence of MPs significantly stressed the soil microbial community,reducing microbial biomass by 30%after 30 d,with the exception of PVC in acid soil,which caused an unexpected increase of about 60%.The metabolic quotient(qCO_(2))doubled in MP-polluted soils,with PVC exerting a more pronounced effect than PP.Basal respiration increased by 25%relative to the acid control soil.PVC MPs raised soil pH from 6.2 to 7.2 and firmly reduced the bioavailability of micronutrients,particularly in acidic soils,and led to a 98%reduction in nitrate(NO_(3)^(-)).The availability of NH4+,P,K,Mg decreased by 10%and Cu,Fe,Mn,Zn by 30%.However,Ca availability increased by 30%,despite shifting from the acid-soluble fraction to soil organic matter and crystalline minerals.Calcareous soil was generally more resilient to changes than the acid soil.These findings underscore the urgent need to investigate the long-term effects of MPs from viticulture on soil properties and health. 展开更多
关键词 Microplastics SOIL Nutrient bioavailability Microbial community VITICULTURE
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The cytonuclear interactions during grapevine domestication
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作者 Ting Hou Yanshuai Xu +27 位作者 Yang Dong Jin Yao Tianhao Zhang Lianzhu Zhou Xiangnian Su Yi Zhang Yingchun Zhang Cheng Chen Xiaoya Shi Yuting Liu Jiacui Li Mengrui Du Xinyue Fang Sheng Yan Sifan Yang Wenrui Wang Zhuyifu Chen Siqi Qiao Bilal Ahmad Xiaodong Xu Yanling Peng Hua Xiao Zhongxin Jin Xiangpeng Leng Cong Tan Ling Tian Chaochao Li Yongfeng Zhou 《Journal of Integrative Plant Biology》 2025年第10期2686-2703,共18页
DNAs from the cytoplasmic genomes often communicate with the nuclear genome during regulation,development,and evolution.However,the dynamics of cytonuclear interaction during crop domestication have still been rarely ... DNAs from the cytoplasmic genomes often communicate with the nuclear genome during regulation,development,and evolution.However,the dynamics of cytonuclear interaction during crop domestication have still been rarely investigated.Here,we examine cytonuclear interactions during grapevine domestication using pan-mitogenome,pan-plastome,and haplotype-resolved nuclear genomes,all assembled from long-read sequences across 33 wild and domesticated grapevine accessions.Structural variation shaped the mitogenomic variation in gene contents,leading to duplications of three specific genes during grapevine domestication(one cox and two rpl genes).Extensive genomic signals of cytonuclear interactions were detected,including a total of212–431 nuclear–mitochondrial segments(NUMTs)and 95–205 nuclear–plastid segments(NUPTs).These results showed that NUMTs were under strong selection and were more abundant in cultivated grapes,whereas NUPTs dominated in wild grapes,indicating the evolutionary trajectories of cytonuclear interactions during grape domestication.Through Genome-Wide Association Study(GWAS),we identified 84 candidate genes associated with mitochondrial–nuclear genome interactions.Among these,the PFD1 gene acts as a signaling regulator,modulating specific signaling pathways regulated by the mitochondria.Interestingly,there are significantly more cytonuclear interaction genes near NUMTs than in other genomic regions,suggesting NUMTmediated interactions between the nuclear and mitochondrial genomes.Overall,our study provides evidence that NUMTs promote cytonuclear interaction during grapevine domestication,offering new insight into the impact of cytonuclear interactions on plant evolution,genetics,and breeding. 展开更多
关键词 GRAPEVINE mitochondrial structural variation NUMTS NUPTs VITICULTURE
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Vine yield estimation from block to regional scale employing remote sensing,weather,and management data
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作者 Pedro C.Towers Sean E.Roulet Carlos Poblete-Echeverría 《Information Processing in Agriculture》 2025年第2期195-208,共14页
Knowledge of the spatial variation in vine yield at different scales is crucial for the wine business,and combined with estimations of vine size variability enables within-block mapping of vegetative-reproductive bala... Knowledge of the spatial variation in vine yield at different scales is crucial for the wine business,and combined with estimations of vine size variability enables within-block mapping of vegetative-reproductive balance.Remote sensing combined with other data that excludes field sampling appears as an optimal approach for yield estimation for a broad range of scales.In this study,mean yield and factors known to affect yield components were collected for over 8000 blocks,over 18 seasons,in the western oasis of Mendoza,Argentina.Partial Least Squares(PLS)and Random Forest(RF)models were used to analyse the relationship between these factors and yield.The PLS model delivered very poor results,with coefficients of determination lower than 0.08.RF models with 49 to 19 variables produced predictions with coefficients of determination of 0.96 to 0.90,respectively.Some factors traditionally considered important in yield determination,such as trellis,frost occurrence,or planting density had limited influence,whereas location weighed heavily.Results suggest a successful approach to spatial prediction of yield that requires no fieldwork and indicates VRB mapping at block-scale may be possible with these tools.Several improvements to inputs are proposed. 展开更多
关键词 Precision viticulture Remote sensing Spatial variability Machine learning Random Forest Partial least square regression LANDSAT
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Population genomics highlights structural variations in local adaptation to saline coastal environments in woolly grape 被引量:1
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作者 Tianhao Zhang Wenjing Peng +11 位作者 Hua Xiao Shuo Cao Zhuyifu Chen Xiangnian Su Yuanyuan Luo Zhongjie Liu Yanling Peng Xiping Yang Guo-Feng Jiang Xiaodong Xu Zhiyao Ma Yongfeng Zhou 《Journal of Integrative Plant Biology》 SCIE CAS CSCD 2024年第7期1408-1426,共19页
Structural variations(SVs)are a feature of plant genomes that has been largely unexplored despite their significant impact on plant phenotypic traits and local adaptation to abiotic and biotic stress.In this study,we ... Structural variations(SVs)are a feature of plant genomes that has been largely unexplored despite their significant impact on plant phenotypic traits and local adaptation to abiotic and biotic stress.In this study,we employed woolly grape(Vitis retordii),a species native to the tropical and subtropical regions of East Asia with both coastal and inland habitats,as a valuable model for examining the impact of SVs on local adaptation.We assembled a haplotype-resolved chromosomal reference genome for woolly grape,and conducted population genetic analyses based on whole-genome sequencing(WGS)data from coastal and inland populations.The demographic analyses revealed recent bottlenecks in all populations and asymmetric gene flow from the inland to the coastal population.In total,1,035 genes associated with plant adaptive regulation for salt stress,radiation,and environmental adaptation were detected underlying local selection by SVs and SNPs in the coastal population,of which 37.29% and 65.26% were detected by SVs and SNPs,respectively.Candidate genes such as FSD2,RGA1,and AAP8 associated with salt tolerance were found to be highly differentiated and selected during the process of local adaptation to coastal habitats in SV regions.Our study highlights the importance of SVs in local adaptation;candidate genes related to salt stress and climatic adaptation to tropical and subtropical environments are important genomic resources for future breeding programs of grapevine and its rootstocks. 展开更多
关键词 climate change grape breeding local adaptation with gene flow salt tolerance VITICULTURE VITIS
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Digital surface model applied to unmanned aerial vehicle based photogrammetry to assess potential biotic or abiotic effects on grapevine canopies 被引量:3
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作者 Su Baofeng Xue Jinru +3 位作者 Xie Chunyu Fang Yulin Song Yuyang Sigfredo Fuentes 《International Journal of Agricultural and Biological Engineering》 SCIE EI CAS 2016年第6期119-130,共12页
Accurate data acquisition and analysis to obtain crop canopy information are critical steps to understand plant growth dynamics and to assess the potential impacts of biotic or abiotic stresses on plant development.A ... Accurate data acquisition and analysis to obtain crop canopy information are critical steps to understand plant growth dynamics and to assess the potential impacts of biotic or abiotic stresses on plant development.A versatile and easy to use monitoring system will allow researchers and growers to improve the follow-up management strategies within farms once potential problems have been detected.This study reviewed existing remote sensing platforms and relevant information applied to crops and specifically grapevines to equip a simple Unmanned Aerial Vehicle(UAV)using a visible high definition RGB camera.The objective of the proposed Unmanned Aerial System(UAS)was to implement a Digital Surface Model(DSM)in order to obtain accurate information about the affected or missing grapevines that can be attributed to potential biotic or abiotic stress effects.The analysis process started with a three-dimensional(3D)reconstruction from the RGB images collected from grapevines using the UAS and the Structure from Motion(SfM)technique to obtain the DSM applied on a per-plant basis.Then,the DSM was expressed as greyscale images according to the halftone technique to finally extract the information of affected and missing grapevines using computer vision algorithms based on canopy cover measurement and classification.To validate the automated method proposed,each grapevine row was visually inspected within the study area.The inspection was then compared to the digital assessment using the proposed UAS in order to validate calculations of affected and missing grapevines for the whole studied vineyard.Results showed that the percentage of affected and missing grapevines was 9.5%and 7.3%,respectively from the area studied.Therefore,for this specific study,the abiotic stress that affected the experimental vineyard(frost)impacted a total of 16.8%of plants.This study provided a new method for automatically surveying affected or missing grapevines in the field and an evaluation tool for plant growth conditions,which can be implemented for other uses such as canopy management,irrigation scheduling and other precision agricultural applications. 展开更多
关键词 remote sensing canopy cover viticultural management frost damage digital surface model
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