玉米籽粒含水量与果穗性状相关性的研究

1983～1986年通过对不同熟期600余份试验材料,测定玉米成熟期籽粒含水量,研究分析果穗性状与籽粒含水量的关系,得出在黑龙江省自然气候条件下,选育产量高、含水量低的杂交种,必须是穗轴细、穗粗适中、籽偏硬或中间型、长籽粒、出籽率高、单穗粒重和百粒重高的杂交种。

STUDY ON CORRELATION BETWEEN KERNAL DEHYDRATION AND EAR CHARACTERS OF MAIZE

During 1983-1986,by determining the maize kernal moisture content at mature time,the relationship between kernal dehydration and ear characters were analysed. In this research more than 600 maize hybrids and single crosses varied in mature period(early , medium and late) were involved. The results indicated that: In Heilongjiang province nature envirenment, a maize hybrid which to be selected and breeded with higher yield and lower moisture content should be thicker in ear diameter, thinner in ear axle, hard or medium in kernal type, longer in kernal lenth, higher weight ratio in grain to whole ear,hevier weight in per ear grains and per 100 kernal.