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为了给春小麦高产,优质栽培及育种提供理论依据,对不同生态类型春小麦品种的茎秆的抗折能力进行了试验研究。结果表明,不同生态类型春小麦品种间茎秆的抗折能力有明显的差异,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,在小麦的拔节期,抽穗期,开花期,灌浆期,和成熟期,抗折能力的大小顺序为:耐湿类型>抗旱类型>肥水类型,耐湿类型小麦品种的抗折能力为最强。小麦抗折能力与产量有明显的关系,试验的研究表明,随着小麦抗折能力的增强,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0.9991。小麦的茎秆能力强,表明小麦的抗倒伏能力强适合于密植,为小麦群体的协调发育及超高产创造有利条件。
In order to provide a theoretical basis for spring wheat high yield, good quality cultivation and breeding, the experimental research on the bending resistance of stems of different ecological types of spring wheat was carried out. The results showed that there was a significant difference in the bending resistance of stems between different ecotypes of spring wheat. At different developmental stages, the bending resistance of stems of different types of cultivars were significantly different. At the jointing, heading and flowering stages of wheat, The order of stress resistance of the wheat cultivars were as follows: moisture-resistant type> drought-resistant type> fertilizer-water type, and moisture-tolerant wheat varieties had the highest flexural capacity. The yield and yield of wheat are obviously related. The experimental research shows that the yield of wheat increases with the increase of the resistance of wheat. The correlation between the stalk strength and yield of wheat is significant and the correlation coefficient is 0.9991. Wheat stalks ability, indicating that the lodging resistance of wheat is suitable for close planting, wheat population coordinated development and create favorable conditions for super-high yield.