【摘要】 采用裂区设计,对长治地区主推的3个玉米品种的籽粒含水率和脱水速率进行了初步研究,并对不同播期、不同品种、不同收获期的产量进行了比较。结果表明,各品种抽丝后的籽粒含水率与抽丝天数之间均存在极显著回归关系;不同品种、不同收获期的籽粒含水率存在显著差异,变化幅度为9.25%~47.20%;不同播期的玉米籽粒每天的脱水速率达到显著差异,变化范围为0.24%~1.15%;不同播期的玉米品种产量之间达到显著差异,变化范围为6 179.75~14 246.7 kg/hm2。更多还原

【Abstract】 Using split plot design approach, preliminary study on three local recommended maize varieties of kernel moisture content and the dehydration rate have been carried out, and the different sowing dates, yields of different varieties, different harvest time are compared, and the results show that there is a significant regression relationship between the kernel moisture content after silking and the number of days. There are significant differences of grain moisture content between varieties and harvest time, in range of 9.25%-47.20%; Different sowing date of maize seed dehydration rate showed significant difference variation in range of 0.24-1.15%/d; Maize varieties yield reached significant differences in the different sowing date, variation range of 6 179.75-14 246.7 kg/hm2.更多还原