紧凑型玉米杂交种地膜覆盖制种技术研究

Study on Raising Seed Technology of Polythene Mulch in Compact Planting Hybrid of Com

本研究以紧凑型玉米杂交种太和一号为试材，研究其亲本生长发育及制种产量。结果表明，地膜覆盖制种能有效地积累地温，蓄水保墒，促进叶片及根系的生长，从而提高制种产量。适期覆膜比直播制种产量提高２７．５％，且保证制种质量。

The growth and yield of the Taihe No.1 hybrid was studied in this paper. The experimental results showed that polythene mulch breeding could increase the yield with accumulating the soil temperature ,retainning the soil moisture,and accelerating the growth of leaves and root. The yield of polythene mulch is 127.5% as that of direct seeding.