论文部分内容阅读
测定4个播种深度处理对玉米4种不同子粒类型的32个品种出苗的影响。结果表明,播种至出苗天数、出苗率、中胚轴长度(干重)、胚芽鞘干重、苗长(干重)与播种深度显著相关。一般玉米种子播种深度应以5.0 cm较好,不同类型玉米种子所适应的播种深度不同,马齿型和半硬粒型品种可适当深播,半马齿型和硬粒型品种应适当浅播,以提高出苗率。
The effects of 4 sowing depth treatments on emergence of 32 varieties of 4 different seed types of maize were determined. The results showed that there was a significant correlation between sowing date and seedling emergence rate, emergence rate, mesocotyl length (dry weight), germ sheath dry weight and seedling length (dry weight). General corn seed sowing depth should be 5.0 cm better, different types of corn seed to adapt to the depth of sowing, dent and semi-hard seed varieties may be suitable for deep-sowing, semi-denture and hard-grain varieties should be appropriate shallow sowing , In order to improve the germination rate.