利用玉米穗粒性状三要素估测产量水平

玉米穗粒性状与穗粒重间均有固定的对应数学关系。以穗长、穗粗、粒长三个要素求得穗粒体积约数,其排序位次与穗粒重的排序位次有较高的一致性。两组试材体积约数与粒重的极显著高度正相关的相关程度是一致的。因此,可用三要素求得的体积约数排序位次,判断粒重的排序位次。用这一方法在新组合初试的田间,即可快捷、准确地评价各参试组合的产量位次趋势。

Utilizing the Three Key Elements of Maize Spike and Granule Character to Estimate Yield Level

There is fixed homologous mathematical relationship between the maize spike character and granule weight.The granule volume of maize is obtained from the three key elements of spike length,spike thickness and granule length.Such sequence is higher compatibility with granule weight sequence.The volume and granule weight of the two series test materials are very higher compatibility.So we can use the volume sequence obtained from the three key elements to judge the granule weight sequence.We can utilize the yield sequence immediately by this way in the field of the first test groups.