小麦基因型衡9966与亲本及近缘品种籽粒性状与沉降值测试及分析(英文)

目的]从DUS必测性状千粒重、补充性状沉降值及自选种子籽粒性状角度,对小麦基因型衡9966、双亲及亲本近缘品种7个指标进行分析,为品种知识产权保护提供依据。方法]选取冬小麦基因型衡9966、亲本良星99和良星66及亲本近缘品种济麦22休眠期种子,进行测试比较和统计分析。结果]衡9966与上述3个基因型千粒重与沉降值均差2个代码、方差分析达到达0.01极显著水平,籽粒长度与良星66、籽粒宽度与良星66及济麦22、籽粒面积与良星66、籽粒周长良星66及济麦22,均达到0.01极显著水平。结论]衡9966与亲本及近缘品种具有特异性,籽粒形状也可作为品种特异性参考指标,用于品种知识产权保护。

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

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.