[Objectives]To identify the drought resistance of main wheat varieties in Shandong Province and screen suitable cultivars for dryland cultivation.[Methods]Employing eight varieties including Jimai 60 as test materials...[Objectives]To identify the drought resistance of main wheat varieties in Shandong Province and screen suitable cultivars for dryland cultivation.[Methods]Employing eight varieties including Jimai 60 as test materials,this study simulated drought stress using 20%PEG-6000 and measured changes in germination-stage indicators.A comprehensive evaluation was conducted using the membership function method,incorporating relative coleoptile length,relative germ length,relative radicle length,relative germination rate,relative germination potential,and stress germination index.[Results]Drought stress not only reduced wheat seed germination rate but also inhibited the growth of the germ,coleoptile,and radicle.The D values of the eight varieties were ranked as follows:Jimai 60>Linmai 9>Yannong 999>Shannong 30>Shannong 28>Luyuan 502>Yannong 1212>Jimai 22.Based on D values,the eight dominant wheat varieties were classified into three categories:highly drought-resistant varieties(Linmai 9 and Jimai 60),moderately drought-resistant varieties(Yannong 999 and Shannong 30),and sensitive varieties(the others).Linmai 9 and Jimai 60 are recommended as suitable wheat varieties for dryland cultivation in Shandong Province.[Conclusions]Drought stress induced by 20%PEG-6000 reduced germination rate,germination potential,and germination index of wheat varieties while inhibiting the growth of coleoptiles and radicles.These indicators can provide a preliminary assessment of drought resistance in wheat cultivars.However,since filter paper was selected as the growth medium,root length measurement errors were introduced during root washing,leading to variations in final experimental results.Futuer studies could attempt using sterilized sand as an alternative growth medium.展开更多
[Objectives] To screen a new wheat variety suitable for planting in southern Shandong Province. [Methods] The DTOPSIS based on entropy weighting was used to comprehensively evaluate 9 traits of 19 wheat varieties plan...[Objectives] To screen a new wheat variety suitable for planting in southern Shandong Province. [Methods] The DTOPSIS based on entropy weighting was used to comprehensively evaluate 9 traits of 19 wheat varieties planted in southern Shandong Province. [Results] The weight of each indicator from low to high was growth period<yield<bulk density<plant height<effective panicle<basic seedling<1 000-grain weight<heading rate<number of grains per panicle. The Ci value of 6 varieties were greater than 0.5, specifically, 0.922 1 for Shannong HH126, 0.868 for DK171, 0.851 5 for Hemai 179, 0.719 6 for Feida 6, 0.696 7 for Jinlai 36 and 0.523 2 for Yannong 301. [Conclusions] The comprehensive traits of these six wheat varieties are good, and they are suitable for planting in southern Shandong Province.展开更多
Objectives:Pigmented wheat has garnered increased attention due to its elevated antioxidant activity.This study aimed to compare the metabolic components and antioxidant properties of purple and white wheat grains.Mat...Objectives:Pigmented wheat has garnered increased attention due to its elevated antioxidant activity.This study aimed to compare the metabolic components and antioxidant properties of purple and white wheat grains.Materials and Methods:Metabolic analysis identified a total of 405 secondary metabolites using three extraction methods:free,acid,and alkali hydrolysis.Results:The results revealed that,compared with white wheat,purple wheat exhibited significantly higher levels of total polyphenols,total flavonoids,and antioxidant activity.Notably,there were substantial variations in 90,80,and 73 secondary metabolites between white and purple wheat under the respective extraction methods.The contents of hispidulin-8-C-(2ʹʹ-O-glucosyl)glucoside,hispidulin-8-C-glucoside,diosmetin6-C-glucoside,and scoparin decreased across all groups,while the contents of peonidin-3-O-glucoside,keracyanin,kuromanin cyanidin-3-Oglucoside,and cyanidin-3-O-(6ʹʹ-O-malonyl)glucoside increased.Conclusions:These findings suggest that pathways associated with anthocyanin,flavone,and flavonol biosynthesis were influenced.Furthermore,each extraction method revealed distinct secondary metabolites.Acid and alkali hydrolysis upregulated 16 and 3 metabolites in purple wheat,and 20 and 3 metabolites in white wheat,respectively.Acid and alkaline hydrolysis also identified indole-3-carboxylic acid,vanillic acid,pyridoxine,and other metabolites with antioxidant and antihypertensive effects in both white and purple wheat.This indicates that acid and alkaline hydrolysis can dissociate a greater variety and quantity of differential metabolites.These findings offer valuable insights for breeders seeking to develop wheat varieties with enhanced functional nutritional value.展开更多
基金Supported by National Wheat Industry Technology System"Linyi Integrated Experimental Station"(CARS-03-66)Shandong Provincial Modern Agricultural Industry Technology System"Linyi Integrated Experimental Station"(SDATT-01-18).
文摘[Objectives]To identify the drought resistance of main wheat varieties in Shandong Province and screen suitable cultivars for dryland cultivation.[Methods]Employing eight varieties including Jimai 60 as test materials,this study simulated drought stress using 20%PEG-6000 and measured changes in germination-stage indicators.A comprehensive evaluation was conducted using the membership function method,incorporating relative coleoptile length,relative germ length,relative radicle length,relative germination rate,relative germination potential,and stress germination index.[Results]Drought stress not only reduced wheat seed germination rate but also inhibited the growth of the germ,coleoptile,and radicle.The D values of the eight varieties were ranked as follows:Jimai 60>Linmai 9>Yannong 999>Shannong 30>Shannong 28>Luyuan 502>Yannong 1212>Jimai 22.Based on D values,the eight dominant wheat varieties were classified into three categories:highly drought-resistant varieties(Linmai 9 and Jimai 60),moderately drought-resistant varieties(Yannong 999 and Shannong 30),and sensitive varieties(the others).Linmai 9 and Jimai 60 are recommended as suitable wheat varieties for dryland cultivation in Shandong Province.[Conclusions]Drought stress induced by 20%PEG-6000 reduced germination rate,germination potential,and germination index of wheat varieties while inhibiting the growth of coleoptiles and radicles.These indicators can provide a preliminary assessment of drought resistance in wheat cultivars.However,since filter paper was selected as the growth medium,root length measurement errors were introduced during root washing,leading to variations in final experimental results.Futuer studies could attempt using sterilized sand as an alternative growth medium.
基金Supported by China National Wheat Industry Technology System"Linyi Comprehensive Test Station"(CARS-3-2-63)Shandong Modern Agricultural Industry Technology System"Linyi Comprehensive Test Station"(SDATT-01-18)。
文摘[Objectives] To screen a new wheat variety suitable for planting in southern Shandong Province. [Methods] The DTOPSIS based on entropy weighting was used to comprehensively evaluate 9 traits of 19 wheat varieties planted in southern Shandong Province. [Results] The weight of each indicator from low to high was growth period<yield<bulk density<plant height<effective panicle<basic seedling<1 000-grain weight<heading rate<number of grains per panicle. The Ci value of 6 varieties were greater than 0.5, specifically, 0.922 1 for Shannong HH126, 0.868 for DK171, 0.851 5 for Hemai 179, 0.719 6 for Feida 6, 0.696 7 for Jinlai 36 and 0.523 2 for Yannong 301. [Conclusions] The comprehensive traits of these six wheat varieties are good, and they are suitable for planting in southern Shandong Province.
基金the Key Research Foundation of Science and Technology Department of Zhejiang Province(No.2021C02057)the Serving Local Economic Development Project of Shandong(Linyi)Institute of Modern Agriculture,Zhejiang University(No.ZDNY-2021-FWLY01005),China.
文摘Objectives:Pigmented wheat has garnered increased attention due to its elevated antioxidant activity.This study aimed to compare the metabolic components and antioxidant properties of purple and white wheat grains.Materials and Methods:Metabolic analysis identified a total of 405 secondary metabolites using three extraction methods:free,acid,and alkali hydrolysis.Results:The results revealed that,compared with white wheat,purple wheat exhibited significantly higher levels of total polyphenols,total flavonoids,and antioxidant activity.Notably,there were substantial variations in 90,80,and 73 secondary metabolites between white and purple wheat under the respective extraction methods.The contents of hispidulin-8-C-(2ʹʹ-O-glucosyl)glucoside,hispidulin-8-C-glucoside,diosmetin6-C-glucoside,and scoparin decreased across all groups,while the contents of peonidin-3-O-glucoside,keracyanin,kuromanin cyanidin-3-Oglucoside,and cyanidin-3-O-(6ʹʹ-O-malonyl)glucoside increased.Conclusions:These findings suggest that pathways associated with anthocyanin,flavone,and flavonol biosynthesis were influenced.Furthermore,each extraction method revealed distinct secondary metabolites.Acid and alkali hydrolysis upregulated 16 and 3 metabolites in purple wheat,and 20 and 3 metabolites in white wheat,respectively.Acid and alkaline hydrolysis also identified indole-3-carboxylic acid,vanillic acid,pyridoxine,and other metabolites with antioxidant and antihypertensive effects in both white and purple wheat.This indicates that acid and alkaline hydrolysis can dissociate a greater variety and quantity of differential metabolites.These findings offer valuable insights for breeders seeking to develop wheat varieties with enhanced functional nutritional value.
