[Objective] This study aimed to investigate the correlation between yield and quality traits of rape. [Method] Taking ＂Sanbei 98＂ and ＂Youyan 599＂ as ex- periment materials, correlation between yield and quality t...[Objective] This study aimed to investigate the correlation between yield and quality traits of rape. [Method] Taking ＂Sanbei 98＂ and ＂Youyan 599＂ as ex- periment materials, correlation between yield and quality traits of Brassica napus L. cultivars was explored by orthogonal rotation method. [Result] The results showed that： 1 In both the two varieties-Sanbei98 and Youyan599, erucic acid content had the largest coefficient of variation, but its average content was lower than 2% in both the two varieties （0.90% in Sanbei98 and 1.24% in Youyan599）, and the palmitic acid content had the smallest coefficient of variation. 2 In terms of the dif- ferences in quality traits at different yield levels, only the mean of eicosenoic acid content revealed significant difference in Sanbei98, and only the mean of seed-pro- tein content revealed significant difference in Youyan599, and there was no signifi- cant difference in any combined quality traits in both the two varieties. 3 The yield was negatively correlated with the erucic acid content or oil content, and posi- tively correlated with the content of seed-protein, linoleic acid, or linolenic acid, and the coefficient of correlation between the yield and either of the contents of glucosi- nolates, oleic acid, palmitic acid, stearic acid, and eicosenoic acid was smaller. ~, when the yield of a variety increased considerably, there was a certain decreasing trend in erucic acid content, oil content, the total amount of erucic chain fatty acids （El ＆ Er）, while there was an increasing trend in seed-protein content, linoleic acid content, linolenic acid content, saturated fatty acids （SFA）, the total amount of fat and protein （P ＆ F）, unsaturation index （IUFA）, unsaturated fatty acids （UFA）, the total amount of 18 carbon fatty acids （18-C FA）, unsaturated fatty acids [UFA/（Ei ＆ Er） ], and the sum of oleic acid and linoleic acid （OI ＆ Li）. 5 When the seed-pro- tein content is increased, the quality of rape oil cake is also improved; when the unsaturated index is increased, the oil stability is decreased. The increase in the total amount of unsaturated fatty acids, oleic acid and linoleic acid helps to increase in the total amount of fatty acids absorbed by human bodies. [Conclusion] This study provides a theoretical foundation for the cultivation of high-yielding and top- quality hybrid rape cultivars.展开更多
[Objective] This study aimed to establish a method for rapid identification of Ningza 11 seeds purity with SSR markers. [Method] Taking Ningza 11 hybrid seeds as experimental materials, a method for rapid identificati...[Objective] This study aimed to establish a method for rapid identification of Ningza 11 seeds purity with SSR markers. [Method] Taking Ningza 11 hybrid seeds as experimental materials, a method for rapid identification of hybrid rape-seeds was established with SSR molecular markers; meanwhile, the test seeds were planted in the field for comparison and verification. [Result] A method for rapid identification of Ningza 11 seeds purity with SSR molecular markers was estab-lished： DNA from seeds germinated in the night was extracted by alkaline lysis method; the PCR amplification was performed for 2 h, and electrophoresis for 1.5 h, and a silver staining for 10 minutes. It took less than one day to from obtaining sampling seeds to obtaining the purity identification result, so a skil ed professional can complete the detection of at least 6 ×96 = 576 seeds per weekday. By using this set of detection system, the measured purity of seeds from nine samples was extremely significantly positively correlated to the actual purity identified in the field test, with a correlation coefficient of up to 0.984 （P〈0.01）. [Conclusion] This SSR-PCR molecular identification system can be applied for rapid and accurate identifi-cation of Ningza 11 hybrid seeds.展开更多
基金Supported by the Special Fund for the Industrial Technology System Construction of Modern Agriculture(nycytx-00563)Department of Science and Technology of Guizhou Province[QinkeheNY(2010)3087]+2 种基金Department of Agriculture of Guizhou Province[Qinnongyu(2009)007]Guizhou Academy of Agricultural Sciences[ZX(2007)015]Special Fund of Guizhou Academy of Agricultural sciences[Qinnongke(2009)030]~~
文摘[Objective] This study aimed to investigate the correlation between yield and quality traits of rape. [Method] Taking ＂Sanbei 98＂ and ＂Youyan 599＂ as ex- periment materials, correlation between yield and quality traits of Brassica napus L. cultivars was explored by orthogonal rotation method. [Result] The results showed that： 1 In both the two varieties-Sanbei98 and Youyan599, erucic acid content had the largest coefficient of variation, but its average content was lower than 2% in both the two varieties （0.90% in Sanbei98 and 1.24% in Youyan599）, and the palmitic acid content had the smallest coefficient of variation. 2 In terms of the dif- ferences in quality traits at different yield levels, only the mean of eicosenoic acid content revealed significant difference in Sanbei98, and only the mean of seed-pro- tein content revealed significant difference in Youyan599, and there was no signifi- cant difference in any combined quality traits in both the two varieties. 3 The yield was negatively correlated with the erucic acid content or oil content, and posi- tively correlated with the content of seed-protein, linoleic acid, or linolenic acid, and the coefficient of correlation between the yield and either of the contents of glucosi- nolates, oleic acid, palmitic acid, stearic acid, and eicosenoic acid was smaller. ~, when the yield of a variety increased considerably, there was a certain decreasing trend in erucic acid content, oil content, the total amount of erucic chain fatty acids （El ＆ Er）, while there was an increasing trend in seed-protein content, linoleic acid content, linolenic acid content, saturated fatty acids （SFA）, the total amount of fat and protein （P ＆ F）, unsaturation index （IUFA）, unsaturated fatty acids （UFA）, the total amount of 18 carbon fatty acids （18-C FA）, unsaturated fatty acids [UFA/（Ei ＆ Er） ], and the sum of oleic acid and linoleic acid （OI ＆ Li）. 5 When the seed-pro- tein content is increased, the quality of rape oil cake is also improved; when the unsaturated index is increased, the oil stability is decreased. The increase in the total amount of unsaturated fatty acids, oleic acid and linoleic acid helps to increase in the total amount of fatty acids absorbed by human bodies. [Conclusion] This study provides a theoretical foundation for the cultivation of high-yielding and top- quality hybrid rape cultivars.
基金Supported by the Jiangsu Provincial Agricultural Science and Technology Innovation Fund[CX(11)1026]National Science and Technology Support Program(2010BAD01B-10)863 Major Project(2011AA10A10403)~~
文摘[Objective] This study aimed to establish a method for rapid identification of Ningza 11 seeds purity with SSR markers. [Method] Taking Ningza 11 hybrid seeds as experimental materials, a method for rapid identification of hybrid rape-seeds was established with SSR molecular markers; meanwhile, the test seeds were planted in the field for comparison and verification. [Result] A method for rapid identification of Ningza 11 seeds purity with SSR molecular markers was estab-lished： DNA from seeds germinated in the night was extracted by alkaline lysis method; the PCR amplification was performed for 2 h, and electrophoresis for 1.5 h, and a silver staining for 10 minutes. It took less than one day to from obtaining sampling seeds to obtaining the purity identification result, so a skil ed professional can complete the detection of at least 6 ×96 = 576 seeds per weekday. By using this set of detection system, the measured purity of seeds from nine samples was extremely significantly positively correlated to the actual purity identified in the field test, with a correlation coefficient of up to 0.984 （P〈0.01）. [Conclusion] This SSR-PCR molecular identification system can be applied for rapid and accurate identifi-cation of Ningza 11 hybrid seeds.
