论文部分内容阅读
冬小麦籽粒重量是构成产量的三要素之一。不同年份,同一品种籽粒重的变幅较大,产量也随之波动。增加粒重的内在潜力很大,又与水、肥、光、热有密切关系。为了探索小麦灌浆规律及其与生态条件的关系,我们于1979—1987年,在小麦开花后,连续进行了籽粒形成和灌浆过程的调查测定。并研究了提高粒重的栽培技术措施。试验在县农科所进行,两合土质,中等肥力,用冀麦7号、23号、24号为试验材料,播种期在10月1—6日,样式为27厘米和13.5厘米大小行种植,亩播量9公斤。开花期标记同时开花的主茎,从开花后3天取穗到室内考察穗、粒情况,隔3天测一次,每次取5穗,直到成熟为止。用电热恒温箱在100℃以上进行烘干测定。
Winter wheat grain weight is one of the three elements that make up the yield. In different years, the variation of grain weight of the same variety is larger and the yield fluctuates accordingly. The inherent potential to increase grain weight is great, but also with water, fertilizer, light and heat are closely related. In order to explore the law of wheat grain filling and its relationship with ecological conditions, we conducted a continuous survey of grain formation and grain filling in wheat from 1979 to 1987. And studied the cultivation techniques to improve grain weight. The experiment was carried out in the county agricultural science institutes. The soil fertility, medium fertility and soil fertility of the two crops were tested with JiMi No.7, No.23 and No.24. The sowing date was from October 1 to 6, and the styles were 27 cm and 13.5 cm , Sowing amount of 9 kg. Flowering flag simultaneously flowering of the main stem, from 3 days after flowering spike to the interior to investigate spike, grain situation, measured once every 3 days, each take 5 spike, until mature. With the electric oven at 100 ℃ above drying determination.