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予农“704”玉米单交种,是当前我省的主要当家品种之一。近几年来,上海、江苏、云南、四川、湖北、山西、河北、山东等省市都在引种推广,播种面积逐年扩大。玉米高产是由每亩穗数,每穗粒数及籽粒重量构成的。研究玉米幼穗发育的规律,明确不同时期的栽培管理措施,为雌穗发育创造有利条件,使其优良特性能够充分发挥,达到穗大粒多籽饱产量高的目的。为此,我们对夏播予农“704”玉米单交种进行了比较详细的观察研究。
To farmers “704” corn single cross, is currently one of the main varieties of our province. In recent years, Shanghai, Jiangsu, Yunnan, Sichuan, Hubei, Shanxi, Hebei, Shandong and other provinces are in the introduction of promotion, planting area expanded year by year. High-yielding corn consists of spikelets per acre, kernels per spike and grain weight. Studying the law of maize young panicle development, identifying cultivation management measures in different periods, creating favorable conditions for ear development, making it possible to give full play to its excellent characteristics and achieve the purpose of high yield of spike large seeds and many seeds. To this end, we conducted a more detailed study on the summer planting “704” corn single cross.