玉米播种出苗期旱害对产量及其相关性状的影响

摘要

运用裂区设计，研究了相对湿度、保水化控剂对玉米播种出苗期植株生长的影响。结果表明：株高、茎粗、穗粗、穗长、出籽率、产量均表现出相对湿度为75%的条件下较高，并且在75%及55%2种相对湿度条件下，B2水平（保水化控剂拌种）的表现均较好。综合考虑，相对湿度为75%水平，保水化控剂拌种，有利于玉米植株的生长发育和产量的提高。%With the method of the split block design,the experiment in the influence factors including the relative humidity and the water chemical control on plant growth of maize sowing emergence was studied. The results indicated that under the relative humidity 75%,the maize had better performance on the height,stem,ear diameter,ear length,seed rate and yield . The B2 standard(water retaining agets seed treatment)had better performecnces between the relative humidity 55% and the relative humidity 75%.Considered the two factors,it was beneficial to growth and increase yield of maize that in relative humidity 75%and B2 standard.