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Analysis on Grain Traits and sedimentation value of Wheat Genotype Heng 9966, Its Parents and Their Closely Related Varieties

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Agricultural Science & Technology 2017年第8期18卷 1378-1383页

作者：刘子会孙书娈李强赵明辉李会敏乔文臣孟祥海李丁魏建伟丁倩郭秀林赵凤梧河北河北省农林科学院遗传生理研究所河北石家庄050015 河北省农作物抗旱研究重点实验室河北省农林科学院旱作农业研究所河北衡水053000

[Objective] 7 indictors of wheat genotype Heng 9966, its parents and their closely related varieties were analyzed based on the 1000-grain weight, sedimentation value and traits of selected grains in DUS test, so as to provide references for the protection of variety intellectual property. [Method] Testing comparison and statistical analysis were conducted to the dormant seeds of winter wheat genotype 9966, parents of Liangxing 99 and Liangxing 96 aw well as the closely related variety of the parents, Jimai 22. [Result] Heng 9966 showed a difference of 2 codes in 1000-grain weight and sedimentation value from the above-mentioned 3 genotypes, and the variant analysis reached the extremely significant level of 0.01. And it also showed extremely significant difference at the level of 0.01 with Liangxing 66 in grain length, with Liangxing 66 and Jimai 22 in grain width, with Liangxing 66 in grain area, with Liangxing 66 and Jimai 22 in grain perimeter. [Conclusion] Heng 9966 had significant distinctness from its parents and their closely related variety, and grain shape can be used as a reference indicator for variety distinctness for the protection of variety intellectual property.

关键词： Wheat Parents 1000-grain weight sedimentation value Variety pro-tection

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Composition and Content of High-Molecular-Weight Glutenin Subunits and Their Effects on Wheat Quality

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Agricultural Sciences in China 2002年第10期1卷 1094-1099页

作者： SONG Jian-min, LIU Ai-feng, WU Xiang-yun, LIU Jian-jun, ZHAO Zhen-dong and LIU Guang-tian(China Agricultural University, Beijing 100094 , P.R.China Shandong Academy of Agricultural Sciences , Jinan 250100 ,P.R. China ) China Agricultural University Beijing 100094 P.R.China Shandong Academy of Agricultural Sciences Jinan 250100 P.R.China Shandong Academy of Agricultural Sciences Jinan 250100 P.R.China China Agricultural University Beijing 100094 P.R.China

sedimentation values, flour glutenin macropolymer (GMP) contents, composition and contents of high-molecular-weight (HMW) glutenin subunits (GS) of 233 flour samples were determined. Our data indicated that subunit 1 occurred more frequently at Glu-A1 , subunit pair 7 + 8 at Glu-B1 and 2 + 12 at Glu-D1. The significant relationships between Glu-1 quality score and total HMW glutenin content, sedimentation value and GMP content suggested that the composition of HMW-GS affects wheat quality strongly. Moreover, the total content of HMW-GS was correlated with certain quality parameters more significantly. Relationship between subunit 5 + 10 content and breadmaking quality was better than others, but 2 + 12, 7 + 8, 7 + 9 and 4 + 12 also correlated with certain quality parameters significantly. The contents of total HMW-glutenin, x-type subunits and y-type subunits related with sedimentation value, flour GMP content, and Glu-1 quality score more strongly than that of individual subunit or subunit pair. The flour GMP content, with excellent correlation to sedimentation value, total contents of HMW glutenin, x- and y-type subunits and many other quality parameters, could be an ideal indicator of breadmaking quality at earlier generations for breeding purpose for its simple procedure and small scale.

关键词： Wheat High-molecular-weight glutenin subunit sedimentation value Glutenin macropoly-mer

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