This experiment used pumpkin Longyuanlixiang as material to research the effect of different pruning ways with one branch, two branches, and three branches on the sugar-decreasing matters during the ripeness of pumpk...This experiment used pumpkin Longyuanlixiang as material to research the effect of different pruning ways with one branch, two branches, and three branches on the sugar-decreasing matters during the ripeness of pumpkin （Cucurbita moschata） fruits. The results showed that pectin contents of pumpkin fruits during the ripeness all increased at first and then dropped in every treatment. The pectin contents under the treatments of one branch and two branches reached the high apex after pollinated for 30 d as well as for 35 d under the treatment of three branches. Pentose and chromium contents of fruits had the same trend under different pruning ways and increased during the ripenes. Three kinds of sugar-decreasing matters contents under treatment of two branches were bigger than treatment of one branch, while treatment of three branches was the lowest.展开更多
The picked pear is often ripened naturally or artificially in ethylene solution to put the pear into market earlier.When Qiuxiang pear are ripened,a great deal of ethylene is produced,the content of soluble solid,tota...The picked pear is often ripened naturally or artificially in ethylene solution to put the pear into market earlier.When Qiuxiang pear are ripened,a great deal of ethylene is produced,the content of soluble solid,total sugar and titrable acidity are increased.The flesh is softened,the skin of fruit turns yellow,and the fruits are of aromatic favor.At different harvest time,respiration intensity appears different changing trends;the fruit qualities and the storage period are influenced too.Artificial ripening promotes fruit ripe and has a better effect than natural ripening.And Qiuxiang pear ripened artificially in earlier the middle or late of August can achieve better fruit qualities and higher economic value.展开更多
With F1 individuals of the cross combination 88-110 of 83-4-96 ( V. quinquangularis Rehd.) X Muscat Rose ( V. vinifera L.), the RAPD marker OPC15-1300 linked to ripe rot ( Gloeosporium fructi-genum Berk.) resistance g...With F1 individuals of the cross combination 88-110 of 83-4-96 ( V. quinquangularis Rehd.) X Muscat Rose ( V. vinifera L.), the RAPD marker OPC15-1300 linked to ripe rot ( Gloeosporium fructi-genum Berk.) resistance genes in Chinese wild Vitis was gained using bulked segregation analysis (BS A). And it was found that OPC15-1300 could be hereditary from the resistant parent (83-4-96) after the marker was tested in 50 Fj plants of the cross combination 88-110, 32 accessions of 8 Chinese wild Vitis species and 14 cultivars of V. vinifera L. Also, it has provided a solid basis for molecular marker-assisted selection (MAS) and for possibly cloning disease resistance genes in the future.展开更多
Plantain (</span><span style="font-family:Verdana;"><i></span><i><span style="font-family:Verdana;">Musa spp</span></i><i><span style="...Plantain (</span><span style="font-family:Verdana;"><i></span><i><span style="font-family:Verdana;">Musa spp</span></i><i><span style="font-family:Verdana;"></i></span></i><span style="font-family:Verdana;">.) constitute</span><span style="font-family:Verdana;">s</span><span style="font-family:""><span style="font-family:Verdana;"> an essential food crop in both tropical and subtropical areas. The staple’s nutritional value and provitamin A carotenoid potential has attracted more interest and usage. </span><a name="_Hlk56239143"></a><span style="font-family:Verdana;">Plantain (</span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><i></span></span><span style="font-family:Verdana;"><i><span style="font-family:Verdana;">Musa spp</span></i></span><span style="font-family:Verdana;"><i><span style="font-family:Verdana;"></i></span></i></span><span style="font-family:Verdana;"><span style="font-family:Verdana;">.) optimization into food recipes has been identified to increase patronage and minimises food wastage, due to the fruit’s (pulp) high perishability nature. In this study, local over ripe plantain (</span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><i></span></span><span style="font-family:Verdana;"><i><span style="font-family:Verdana;">Musa spp</span></i></span><span style="font-family:Verdana;"><i><span style="font-family:Verdana;"></i></span></i></span><span style="font-family:Verdana;"><span style="font-family:Verdana;">.) was sampled and used in a beverage production. The beverage was processed from pureed ripe plantain, by three days fermentation of the pureed plantain mixture, boiling, and spicing, preservation with syrup, storage, and usage. The product’s processing was followed with a sensory evaluation of the new beverage on taste, appearance, color, flavour, and overall acceptability. Majority of the respondents indicated the new product was good and was well accepted. T</span></span><span style="font-family:Verdana;">he research sought to create food diversity, encourage more usage of the crop and to highlight the nutritional values of plantain (</span><span style="font-family:Verdana;"><i></span><i><span style="font-family:Verdana;">Musa spp</span></i><i><span style="font-family:Verdana;"></i></span></i><span style="font-family:Verdana;">.) which is particularly high in provitamin A carotenoid to address Vitamin A deficiency in low resource setting communities.展开更多
Remaining true to our original aspiration, PetroChina Research Institute of Petroleum Exploration and Development (RIPED) has been forging ahead, going through a glorious development course of 60 years.Here, let s ext...Remaining true to our original aspiration, PetroChina Research Institute of Petroleum Exploration and Development (RIPED) has been forging ahead, going through a glorious development course of 60 years.Here, let s extend our warmest congratulations.Over the past six decades, generations of petroleum science and technology workers from the展开更多
[ Objective] This study aimed to analyze the quality characteristics of the new middle-ripejapon/ca rico varieties in Jiangsu Province. [ Method] Four- teen new rice varieties included in the Middle-ripe Japon/ca Rice...[ Objective] This study aimed to analyze the quality characteristics of the new middle-ripejapon/ca rico varieties in Jiangsu Province. [ Method] Four- teen new rice varieties included in the Middle-ripe Japon/ca Rice Regional Test in 2011 were selected as the materials. Correlation analysis and cluster analysis were carried out on their quality traits. [Result] The rice cultivars possessed stable characteristics, which were difficult to be further improved. In addition, their quality traits had extremely complicated relationships, and the differences were significant between different groups. [ Conclusion] This study will provide reference for improving the quality traits of japonica rice.展开更多
Remaining true to our original aspiration, PetroChina Research Institute of Petroleum Exploration and Development (RIPED) has been forging ahead, going through a glorious development course of 60 years.Here, let s ext...Remaining true to our original aspiration, PetroChina Research Institute of Petroleum Exploration and Development (RIPED) has been forging ahead, going through a glorious development course of 60 years.Here, let s extend, our warmest congratulations.展开更多
On March 15, the general geologist of PetroChina and the dean of ResearchInstitute Petroleum Exploration and Development, CNPC (RIPED), Mr. Jia Chengzao, and the scientificand development principals in the aspects of ...On March 15, the general geologist of PetroChina and the dean of ResearchInstitute Petroleum Exploration and Development, CNPC (RIPED), Mr. Jia Chengzao, and the scientificand development principals in the aspects of exploration and development, refining & marketing,natural gas & pipelines and from RIPED met 8 specialists leading by Mr. Olivier Appert, the dean ofInstitut Francais du Petrole (IFP). The two sides exchanged ideas broadly on the research topicsthat both parties were interested in commonly and signed a memorandum of understanding for buildinga long-term cooperative partnership between RIPED and IFP.展开更多
SOUTH Africa is serious about encouraging further Chinese investment, especially in key areas like the beneficiation of mineral resources, improving indus trial capacity, enhancing agroprocessing and energy, said the ...SOUTH Africa is serious about encouraging further Chinese investment, especially in key areas like the beneficiation of mineral resources, improving indus trial capacity, enhancing agroprocessing and energy, said the country＇s President Jacob Zuma, He made the remarks on December 5 at the South AfricaChina Busi ness Forum in Beijing. during his state visit. A platform for Chinese and South African businesses to discuss cooperation in sectors like finance, energy,展开更多
INFRASTRUCTURE plays a central role in improving competitiveness, facilitating domestic and international trade, and enhancing the African conti- nent＇s integration into the global economy, accord- ing to Gratitude B...INFRASTRUCTURE plays a central role in improving competitiveness, facilitating domestic and international trade, and enhancing the African conti- nent＇s integration into the global economy, accord- ing to Gratitude Bulelani Magwanishe, South Africa＇s Deputy Minister of Public Enterprises. Magwanishe was speaking at the Opportunities for Investment Cooperation in South Africa forum on October 30, part of the 2013 COIFAIR - the World＇s Investment Summit.展开更多
To address the challenges faced in real-world tomato ripeness detection,such as variable lighting conditions,complex backgrounds,and the trade-off between accuracy and the model being effectively lightweight,this stud...To address the challenges faced in real-world tomato ripeness detection,such as variable lighting conditions,complex backgrounds,and the trade-off between accuracy and the model being effectively lightweight,this study proposes a lightweight YOLOv11-MHS model.The improvements of the proposed model are reflected in three aspects:(1)the C3k2_MSCB module is designed,which integrates a multiscale convolutional block(MSCB)for multiscale feature extraction and fusion,thereby enhancing detection accuracy;(2)the neck of the model is redesigned as a high-level feature screening-fusion pyramid structure,which fuses key features to improve robustness in cluttered environments while reducing model size;and(3)the C2PSA module is enhanced by introducing the spatial and channel synergistic attention mechanism to improve the ability of the model to handle complex scenes.Experimental results on the same data set show that,compared to the baseline model YOLOv11n,YOLOv11-MHS achieves improvements of 1.7%in mAP0.5 and 2.9%in mAP0.5-0.95,while reducing parameters and model size by 35.2%and 32.7%,respectively.These results demonstrate that YOLOv11-MHS achieves both outstanding accuracy and lightweight performance in tomato ripeness detection,providing technical support for agricultural applications.展开更多
Apples at different ripening stages display distinct processing properties and browning characteristics in products.This study aimed to identify differential metabolites and metabolic pathways of browning pulp and bro...Apples at different ripening stages display distinct processing properties and browning characteristics in products.This study aimed to identify differential metabolites and metabolic pathways of browning pulp and browning inhibition pulp of Fuji apple across four ripening stages(M1-M4),corresponding to days after full bloom(DAFB:148,155,162,and 171).We investigated the physicochemical characteristics,browning-related enzyme activities,and metabolomic profiles of apples at the four stages,revealing defensive metabolic changes associated with browning throughout ripening.Specifically,the browning rate in apples increased with ripening,peaking before declining in the late stages,and exhibited positive correlations with activities of polyphenol oxidase(PPO),peroxidase(POD),and catalase(CAT),and negative correlations with superoxide dismutase(SOD),phenylalanine ammonia-lyase(PAL),and H_(2)O_(2) levels.Metabolomic profiling identified 315,393,and 243 distinct metabolites in fresh control(FC),browning pulp(BR),and browning-inhibited pulps(CM)of apple at the four ripening stages,respectively.KEGG enrichment analysis revealed that FC and BR of the four ripening apples were differentiated by phenylpropanoid biosynthesis,while CM was featured by flavonoid biosynthesis.The characterized differential metabolites in BR were changed to α-linolenic acid metabolism with ripening,while those in CM were from flavonoid and phenylpropanoid biosynthesis.Furthermore,the in-depth analysis revealed 40 significantly differential metabolites associated with amino acid,nucleotide,coenzyme,and vitamin metabolism,potentially modulating the stress-responsive cellular redox balance.This research provides critical insights for browning prevention in the processing of fruits at various ripening stages.展开更多
基金Supported by Heilongjiang Province Natural Science Foundation (C2004-24)
文摘This experiment used pumpkin Longyuanlixiang as material to research the effect of different pruning ways with one branch, two branches, and three branches on the sugar-decreasing matters during the ripeness of pumpkin （Cucurbita moschata） fruits. The results showed that pectin contents of pumpkin fruits during the ripeness all increased at first and then dropped in every treatment. The pectin contents under the treatments of one branch and two branches reached the high apex after pollinated for 30 d as well as for 35 d under the treatment of three branches. Pentose and chromium contents of fruits had the same trend under different pruning ways and increased during the ripenes. Three kinds of sugar-decreasing matters contents under treatment of two branches were bigger than treatment of one branch, while treatment of three branches was the lowest.
文摘The picked pear is often ripened naturally or artificially in ethylene solution to put the pear into market earlier.When Qiuxiang pear are ripened,a great deal of ethylene is produced,the content of soluble solid,total sugar and titrable acidity are increased.The flesh is softened,the skin of fruit turns yellow,and the fruits are of aromatic favor.At different harvest time,respiration intensity appears different changing trends;the fruit qualities and the storage period are influenced too.Artificial ripening promotes fruit ripe and has a better effect than natural ripening.And Qiuxiang pear ripened artificially in earlier the middle or late of August can achieve better fruit qualities and higher economic value.
文摘With F1 individuals of the cross combination 88-110 of 83-4-96 ( V. quinquangularis Rehd.) X Muscat Rose ( V. vinifera L.), the RAPD marker OPC15-1300 linked to ripe rot ( Gloeosporium fructi-genum Berk.) resistance genes in Chinese wild Vitis was gained using bulked segregation analysis (BS A). And it was found that OPC15-1300 could be hereditary from the resistant parent (83-4-96) after the marker was tested in 50 Fj plants of the cross combination 88-110, 32 accessions of 8 Chinese wild Vitis species and 14 cultivars of V. vinifera L. Also, it has provided a solid basis for molecular marker-assisted selection (MAS) and for possibly cloning disease resistance genes in the future.
文摘Plantain (</span><span style="font-family:Verdana;"><i></span><i><span style="font-family:Verdana;">Musa spp</span></i><i><span style="font-family:Verdana;"></i></span></i><span style="font-family:Verdana;">.) constitute</span><span style="font-family:Verdana;">s</span><span style="font-family:""><span style="font-family:Verdana;"> an essential food crop in both tropical and subtropical areas. The staple’s nutritional value and provitamin A carotenoid potential has attracted more interest and usage. </span><a name="_Hlk56239143"></a><span style="font-family:Verdana;">Plantain (</span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><i></span></span><span style="font-family:Verdana;"><i><span style="font-family:Verdana;">Musa spp</span></i></span><span style="font-family:Verdana;"><i><span style="font-family:Verdana;"></i></span></i></span><span style="font-family:Verdana;"><span style="font-family:Verdana;">.) optimization into food recipes has been identified to increase patronage and minimises food wastage, due to the fruit’s (pulp) high perishability nature. In this study, local over ripe plantain (</span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><i></span></span><span style="font-family:Verdana;"><i><span style="font-family:Verdana;">Musa spp</span></i></span><span style="font-family:Verdana;"><i><span style="font-family:Verdana;"></i></span></i></span><span style="font-family:Verdana;"><span style="font-family:Verdana;">.) was sampled and used in a beverage production. The beverage was processed from pureed ripe plantain, by three days fermentation of the pureed plantain mixture, boiling, and spicing, preservation with syrup, storage, and usage. The product’s processing was followed with a sensory evaluation of the new beverage on taste, appearance, color, flavour, and overall acceptability. Majority of the respondents indicated the new product was good and was well accepted. T</span></span><span style="font-family:Verdana;">he research sought to create food diversity, encourage more usage of the crop and to highlight the nutritional values of plantain (</span><span style="font-family:Verdana;"><i></span><i><span style="font-family:Verdana;">Musa spp</span></i><i><span style="font-family:Verdana;"></i></span></i><span style="font-family:Verdana;">.) which is particularly high in provitamin A carotenoid to address Vitamin A deficiency in low resource setting communities.
文摘Remaining true to our original aspiration, PetroChina Research Institute of Petroleum Exploration and Development (RIPED) has been forging ahead, going through a glorious development course of 60 years.Here, let s extend our warmest congratulations.Over the past six decades, generations of petroleum science and technology workers from the
基金Supported by the Project for Science and Technology Transformation in Jiangsu Province(BA2008083)
文摘[ Objective] This study aimed to analyze the quality characteristics of the new middle-ripejapon/ca rico varieties in Jiangsu Province. [ Method] Four- teen new rice varieties included in the Middle-ripe Japon/ca Rice Regional Test in 2011 were selected as the materials. Correlation analysis and cluster analysis were carried out on their quality traits. [Result] The rice cultivars possessed stable characteristics, which were difficult to be further improved. In addition, their quality traits had extremely complicated relationships, and the differences were significant between different groups. [ Conclusion] This study will provide reference for improving the quality traits of japonica rice.
文摘Remaining true to our original aspiration, PetroChina Research Institute of Petroleum Exploration and Development (RIPED) has been forging ahead, going through a glorious development course of 60 years.Here, let s extend, our warmest congratulations.
文摘On March 15, the general geologist of PetroChina and the dean of ResearchInstitute Petroleum Exploration and Development, CNPC (RIPED), Mr. Jia Chengzao, and the scientificand development principals in the aspects of exploration and development, refining & marketing,natural gas & pipelines and from RIPED met 8 specialists leading by Mr. Olivier Appert, the dean ofInstitut Francais du Petrole (IFP). The two sides exchanged ideas broadly on the research topicsthat both parties were interested in commonly and signed a memorandum of understanding for buildinga long-term cooperative partnership between RIPED and IFP.
文摘SOUTH Africa is serious about encouraging further Chinese investment, especially in key areas like the beneficiation of mineral resources, improving indus trial capacity, enhancing agroprocessing and energy, said the country＇s President Jacob Zuma, He made the remarks on December 5 at the South AfricaChina Busi ness Forum in Beijing. during his state visit. A platform for Chinese and South African businesses to discuss cooperation in sectors like finance, energy,
文摘INFRASTRUCTURE plays a central role in improving competitiveness, facilitating domestic and international trade, and enhancing the African conti- nent＇s integration into the global economy, accord- ing to Gratitude Bulelani Magwanishe, South Africa＇s Deputy Minister of Public Enterprises. Magwanishe was speaking at the Opportunities for Investment Cooperation in South Africa forum on October 30, part of the 2013 COIFAIR - the World＇s Investment Summit.
基金financially supported by National Natural Science Foundation of China(12364011)Guangxi Science and Technology Plan,China(AD21220147,AD25069027)+1 种基金Liuzhou Science and Technology Program,China(2023PRJ0103,2024AA0204A001)Graduate Education Innovation Project,China(YCSW2024522).
文摘To address the challenges faced in real-world tomato ripeness detection,such as variable lighting conditions,complex backgrounds,and the trade-off between accuracy and the model being effectively lightweight,this study proposes a lightweight YOLOv11-MHS model.The improvements of the proposed model are reflected in three aspects:(1)the C3k2_MSCB module is designed,which integrates a multiscale convolutional block(MSCB)for multiscale feature extraction and fusion,thereby enhancing detection accuracy;(2)the neck of the model is redesigned as a high-level feature screening-fusion pyramid structure,which fuses key features to improve robustness in cluttered environments while reducing model size;and(3)the C2PSA module is enhanced by introducing the spatial and channel synergistic attention mechanism to improve the ability of the model to handle complex scenes.Experimental results on the same data set show that,compared to the baseline model YOLOv11n,YOLOv11-MHS achieves improvements of 1.7%in mAP0.5 and 2.9%in mAP0.5-0.95,while reducing parameters and model size by 35.2%and 32.7%,respectively.These results demonstrate that YOLOv11-MHS achieves both outstanding accuracy and lightweight performance in tomato ripeness detection,providing technical support for agricultural applications.
基金Financial support by the China Agricultural Research System(CARS-27)the Financial Fund of Agricultural Science and Technology Innovation Program,Institute of Food Science and Technology,Chinese Academy of Agricultural Sciences(CAAS-ASTIP-2023IFST)are gratefully acknowledged.
文摘Apples at different ripening stages display distinct processing properties and browning characteristics in products.This study aimed to identify differential metabolites and metabolic pathways of browning pulp and browning inhibition pulp of Fuji apple across four ripening stages(M1-M4),corresponding to days after full bloom(DAFB:148,155,162,and 171).We investigated the physicochemical characteristics,browning-related enzyme activities,and metabolomic profiles of apples at the four stages,revealing defensive metabolic changes associated with browning throughout ripening.Specifically,the browning rate in apples increased with ripening,peaking before declining in the late stages,and exhibited positive correlations with activities of polyphenol oxidase(PPO),peroxidase(POD),and catalase(CAT),and negative correlations with superoxide dismutase(SOD),phenylalanine ammonia-lyase(PAL),and H_(2)O_(2) levels.Metabolomic profiling identified 315,393,and 243 distinct metabolites in fresh control(FC),browning pulp(BR),and browning-inhibited pulps(CM)of apple at the four ripening stages,respectively.KEGG enrichment analysis revealed that FC and BR of the four ripening apples were differentiated by phenylpropanoid biosynthesis,while CM was featured by flavonoid biosynthesis.The characterized differential metabolites in BR were changed to α-linolenic acid metabolism with ripening,while those in CM were from flavonoid and phenylpropanoid biosynthesis.Furthermore,the in-depth analysis revealed 40 significantly differential metabolites associated with amino acid,nucleotide,coenzyme,and vitamin metabolism,potentially modulating the stress-responsive cellular redox balance.This research provides critical insights for browning prevention in the processing of fruits at various ripening stages.
