春小麦茎秆强度与产量性状关系的研究

本试验对不同类型春小麦品种的茎秆强度进行了研究,结果表明,不同类型春小麦品种间茎秆强度有明显的差异,在不同的发育时期不同类型的品种茎基部的抗折能力有明显的不同,在小麦的开花期,乳熟期,蜡熟期和成熟期,分别对小麦茎秆的强度进行测试,抗旱类型小麦品种的茎秆强度为最强。小麦茎秆的强度与产量有明显的关系,随着小麦茎秆强度的增强,其产量也随之增加,小麦的茎秆强度与产量呈显著正相关,相关系数为0.8986。小麦的茎秆强度强,表明小麦的抗倒伏能力强,适合于密植,为小麦的群体协调发育及创造高产提供有利条件,同时给春小麦超高产、优质栽培及育种提供了科学依据。

Study on Relationship of Stem Strength and Yield Character in Spring Wheat

Stem strengths of spring wheat varieties of different types were studied,the result indicated that stem strengths were very different among different spring wheat varieties.Stem strength for different wheat varieties has obvious difference in different growing period,wheat stems strength was tested in flowering,milking,waxing and maturity stages respectively,the variety with drought-resistance was best one for stem strength,there was a obvious relation between stem strength and yield,the yield was going higher and higher with stronger stem strength,there was significant positive relation between stem strength and yield,the related coefficient was 0.8986,lodging-resistance varieties with strong stem strength were suitable for close planting to get higher yield.The study of wheat stem strength provided scientific basis for super high-yielding,good quality, culture and breeding of wheat variety.