普通玉米授高油玉米花粉后干物质积累及光合特性的变化

通过对普通玉米农大108（ND108）授以高油202（HOC202）、高油115（HOC115）、高油4515（HOC4515）单交种玉米花粉，以ND108自交作对照，研究了授高油玉米花粉后普通玉米产量及植株生理生化的变化。结果表明：授HOC202、HOC115花粉的ND108百粒重分别比对照高10．7％和3．4％，而授HOC4515花粉的百粒重比对照低1．3％。从授粉后30d起，授HOC202、HOC115花粉的ND108单株干物重、单株籽粒产量明显大于对照。授HOC202、HOC115花粉的NDl08叶绿素a,b总量在授粉后各个时期均大于对照，叶面积峰值出现的时间比对照早，后期叶面积下降缓慢，且授粉至成熟期单株叶面积持续期大于对照。

Changes of Dry Matter Accumulation and Photosynthetic Characteristics of Normal Corn after Pollinated by High-oil Corn

With the self-pollinated normal corn ND108 as the check,the yield and plant physiological and biochemical changes of ND108 after pollinated by three high-oil corn hybrids,HOC202,HOC115 and HOC4515,respectively were studied.The results showed that the 100-kernel weight of ND108 pollinated with HOC202 and HOC115 were 10.7% and 3.4% higher than that of the check respectively,while that of ND108 pollinated with HOC4515 was 1.3% lower.Compared with the check,the dry weight and grain yield per plant of ND108 poll...