玉米杂交种鲁单981籽粒灌浆特性研究

Study on grain filling characteristics of maize hybrid Ludan981

以普通玉米品种迪卡1号作为对照,对玉米杂交种鲁单981籽粒灌浆特性进行研究,结果表明:鲁单981具有籽粒体积大、灌浆时间长、增产潜力大等特点.鲁单981籽粒灌浆速率变化动态呈以籽粒灌浆最大期为峰值的单峰变化趋势,籽粒灌浆速率与籽粒体积、含水量呈正相关,其灌浆速率与气温变化的相关性达到显著水平.

The grain filling characteristics of Corn Hybrid Ludan981 were studied and compared with ordinary maize variety deca-1.The results showed that Ludan981 had some characters,such as bigger seed volume,higher grain filling rate,longer grain filling period and great potential for the yield increment.Dynamic variation of grain filling rate in Ludan981 had a single-peak trend with the largest grain filling period as the peak.Grain filling rate and seed volume,water content was positively correlated.The correlation of grain filling rate and temperature change reached a significant level.