The weights of ten important traits of sugarcane, including the number of hair groups, plant height, defoliation capability, stalk diameter, ratooning property, stalk number of disease resistance, cane yield, sucrose ...The weights of ten important traits of sugarcane, including the number of hair groups, plant height, defoliation capability, stalk diameter, ratooning property, stalk number of disease resistance, cane yield, sucrose content and sugar yield, were distributed with the Analytic Hierarchy Process （AHP） method. Ten Yuetang series of sugarcane lines were evaluated by Dynamic Technique for Order Preference by Similarity to Ideal Solution （DTOPSIS）. AHP results indicated that the weights of ten traits were 0. 013 4, 0.022 7, O. 030 2, 0.040 8, 0.065 3, 0.088 1, 0.116 2, 0. 160 6, 0.198 4 and 0.264 5, respectively, with random consistency ratio C.R. =0.098 1 〈0.1, suggesting that the distribution of the weights of evaluation indicators was reasonable. Comprehensive evaluation of 10 sugarcane lines by DTOPSLS method combining with the conclusion of AHP showed that the comprehensive performances of Yuetang 03-393 and Yuetang 03-373 were much better than other sugarcane lines, with relative approach degree Ci ranking the first and second, respectively, which was basically consistent with the practical survey, suggesting that Yuetang 03-393 and Yuetang 03-373 were suitable for large-scale popularization. The above results confirmed the feasibility of applying AHP and DTOPSIS in comprehensive evaluation of new crop varieties and provided reference for the breeding of new sugarcane lines.展开更多
Six sugarcane plant lines were selected from seedlings owing to good performance in agronomic characters under drought conditions.A special test with drought stress to death under groove was carried out to select the ...Six sugarcane plant lines were selected from seedlings owing to good performance in agronomic characters under drought conditions.A special test with drought stress to death under groove was carried out to select the best drought tolerant clones among them. The proportion of bound water to free water content in leaves,cell cytoplasm membrane permeability in leaves,yield components,etc.,which were regarded as reasonable indexes to identify drought resistance of sugarcane,were measured. The results showed that both YT06-868 and YT05-339 were winners. The two were high-class drought-resistant clones. On some measured indexes,both of them had higher values than ROC22( the main check variety) and on the other ones,they both had the same values as ROC22. The drought resistance of YT05-291 was moderate and between ROC22 and ROC16( the secondary check variety),while the others had poor drought-resistant according to these indexes.展开更多
[Objectives]The purpose of this study was to provide reference for cultivation and promotion of a new sugarcane variety Yuetang 03-373,on the basis of analyzing and summarizing the characters of the variety.[Methods]C...[Objectives]The purpose of this study was to provide reference for cultivation and promotion of a new sugarcane variety Yuetang 03-373,on the basis of analyzing and summarizing the characters of the variety.[Methods]Correlation,multiple regression and path analyses were performed for the yield and yield components of Yuetang 03-373.[Results]Correlation analysis shows that cane yield was significantly correlated with millable stalk number,stalk length and stalk diameter,and among them,the correlation with millable stalk number was the strongest.Multiple regression and path analyses show that millable stalk number contributed the most to cane yield,followed by stalk length,and stalk diameter contributed the least.The regression equation of cane yield against the three yield components was y=-2.8713+1.5497x1+5.8990x2-395.4294x3(R=0.9672**).[Conclusions]Millable stalk number and stalk length were the important and major factors for high yield of Yuetang 03-373,indicating that Yuetang 03-373 is a sugarcane variety of millable stalk type.In cultivation,full play should be given to the advantage of Yuetang 03-373 in millable stalk number,as well as stalk length(plant height),in order to achieve the purpose of increasing yield.展开更多
基金Supported by National Sugarcane Industry System Construction Project of China(CARS-20)Project of Science and Technology of Guangdong Province(2011B020415007)Project of Science and Technology of Zhanjiang City(2011D02)
文摘The weights of ten important traits of sugarcane, including the number of hair groups, plant height, defoliation capability, stalk diameter, ratooning property, stalk number of disease resistance, cane yield, sucrose content and sugar yield, were distributed with the Analytic Hierarchy Process （AHP） method. Ten Yuetang series of sugarcane lines were evaluated by Dynamic Technique for Order Preference by Similarity to Ideal Solution （DTOPSIS）. AHP results indicated that the weights of ten traits were 0. 013 4, 0.022 7, O. 030 2, 0.040 8, 0.065 3, 0.088 1, 0.116 2, 0. 160 6, 0.198 4 and 0.264 5, respectively, with random consistency ratio C.R. =0.098 1 〈0.1, suggesting that the distribution of the weights of evaluation indicators was reasonable. Comprehensive evaluation of 10 sugarcane lines by DTOPSLS method combining with the conclusion of AHP showed that the comprehensive performances of Yuetang 03-393 and Yuetang 03-373 were much better than other sugarcane lines, with relative approach degree Ci ranking the first and second, respectively, which was basically consistent with the practical survey, suggesting that Yuetang 03-393 and Yuetang 03-373 were suitable for large-scale popularization. The above results confirmed the feasibility of applying AHP and DTOPSIS in comprehensive evaluation of new crop varieties and provided reference for the breeding of new sugarcane lines.
基金Supported by Special Public Welfare Industry Project of Ministry of Agriculture(nyhyzx07-019)Special Project for the Construction of Modern Agricultural Industrial Technology System of Ministry of AgricultureGuangdong Science and Technology Research Project(2011B020415007)
文摘Six sugarcane plant lines were selected from seedlings owing to good performance in agronomic characters under drought conditions.A special test with drought stress to death under groove was carried out to select the best drought tolerant clones among them. The proportion of bound water to free water content in leaves,cell cytoplasm membrane permeability in leaves,yield components,etc.,which were regarded as reasonable indexes to identify drought resistance of sugarcane,were measured. The results showed that both YT06-868 and YT05-339 were winners. The two were high-class drought-resistant clones. On some measured indexes,both of them had higher values than ROC22( the main check variety) and on the other ones,they both had the same values as ROC22. The drought resistance of YT05-291 was moderate and between ROC22 and ROC16( the secondary check variety),while the others had poor drought-resistant according to these indexes.
基金GDAS'Project of Science and Technology Development(2020GDASYL-20200302005)Science and Technology Planning Project of Zhanjiang City(2019A01030)Guangdong Provincial Team of Technical System Innovation for Sugarcane Sisal Hemp Industry(2019KJ104-15).
文摘[Objectives]The purpose of this study was to provide reference for cultivation and promotion of a new sugarcane variety Yuetang 03-373,on the basis of analyzing and summarizing the characters of the variety.[Methods]Correlation,multiple regression and path analyses were performed for the yield and yield components of Yuetang 03-373.[Results]Correlation analysis shows that cane yield was significantly correlated with millable stalk number,stalk length and stalk diameter,and among them,the correlation with millable stalk number was the strongest.Multiple regression and path analyses show that millable stalk number contributed the most to cane yield,followed by stalk length,and stalk diameter contributed the least.The regression equation of cane yield against the three yield components was y=-2.8713+1.5497x1+5.8990x2-395.4294x3(R=0.9672**).[Conclusions]Millable stalk number and stalk length were the important and major factors for high yield of Yuetang 03-373,indicating that Yuetang 03-373 is a sugarcane variety of millable stalk type.In cultivation,full play should be given to the advantage of Yuetang 03-373 in millable stalk number,as well as stalk length(plant height),in order to achieve the purpose of increasing yield.
