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对7个主要农艺性状及整齐度与产量结果进行分析,结果表明:株高与产量相关极显著(r=0.583 3~(**),其次是穗长和穗位高,但均未达到显著水平。而7个主要农艺性状整齐度与产量之间都存在着不同程度的负相关,其中,茎粗整齐度与产量的相关最密切,其次是穗粗和穗位高,但均未达到显著水平。因此,在玉米育种工作中,选择丰产性好的品种要从株高、穗位高、穗长等几个性状入手,同时注意启用高代、性状稳定的材料,是培养高产组合的基础;在玉米制种过程中,要采用高纯度的亲本,严格去雄去杂,保证种子高纯度是丰产的关键;在高产栽培中,要培育大小均匀一致的田间单株,使个体协调发展,是夺取高产的前提条件。
The results showed that there was a significant correlation between plant height and yield (r = 0.583 3 ~ (**)), followed by spike length and ear height, but none of them reached significant While the seven main agronomic traits have different degrees of negative correlation between the uniformity and yield, of which the stem and root uniformity is the most closely related to the yield, followed by the ear diameter and ear height, but did not reach significant Therefore, in the breeding of maize, the selection of good high-yielding varieties should start with several traits such as plant height, ear height, spike length, etc. At the same time, pay attention to the high-generation, stable trait material is the basis for cultivating high yield combinations ; In the process of seed production of corn, it is necessary to adopt high-purity parents and strictly remove male and female to ensure the high purity of seeds is the key to high yield. In high-yielding cultivation, it is necessary to cultivate individual plants with uniform size and uniformity in order to coordinate the development of individuals, It is a prerequisite for winning high output.