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小麦的适时收获,是提高粒重的不可忽视的措施。不少试验说明,小麦的收获适期是蜡熟期,不仅产量高,而且品质好。群众说:“十成熟九成收”,“宁收青条不收花腰”,也就是这个道理。完熟期收获不仅落粒断穗损失大,而且营养物质倒流到茎、叶、鞘里去。群众称这种现象叫“往回里长”,使千粒重降低。去年我们对冬小麦九三白品种进行不同时期收获,结果如下: 测定结果表明,粒籽含水量在21.8—26.1%的千粒重最高。又如我们测定自抗5819品种乳熟期千粒重30.3克,蜡熟期32.0克,完
Timely harvest of wheat is to improve the weight of the grain can not be ignored measures. Many experiments show that wheat harvest period is ripe waxy period, not only high yield, but also good quality. The masses said: “The ten mature Jiucheng income”, “Ning received green bar does not accept the waist”, that is the truth. Maturity harvest not only falling granule loss, and nutrients back to the stems, leaves, sheath go. The masses call this phenomenon “back in the long,” reducing the weight of a thousand grains. Last year we harvested Jiu San white varieties of winter wheat at different periods, the results are as follows: Determination results show that grain moisture content of 21.8-26.1% 1000 grain weight is the highest. In another example, we measured self-resistance 5819 varieties milky grain weight 30.3 grams, waxy period of 32.0 grams, finished