【摘要】 系统地探讨了玉米地膜制种促熟增产的作物生理学机理．结果表明，玉米池膜制种可以改善土壤水温条件、增强植株根系活力和群体光合作用性能、促进植株生长发育和光合产物的积累与分配．为该技术应用提供了科学依据．更多还原

【Abstract】 The physiological basis was discussed for the echnique of covering seedbed with plastic film in maize hybrid seed production.Results showed that it can improve the soil water and temperature conditions，enhance root activities and population photosynthesis,and promote the accumulation and redistribution of assimitates,Which 1ays theoretial foundation for the spplication of the technique.更多还原