不同糯玉米品种籽粒灌浆特性与采收期研究

Study on the Characteristics of Kernel Filling in Different Cultivars of Waxy Maize

[目的]探求糯玉米鲜穗最佳采收期和提高其鲜果穗商品率。[方法]以6个糯玉米品种为试材,对籽粒干重和灌浆速率进行研究。[结果]籽粒干重随授粉后天数的增加呈"S"型曲线变化,符合自然生长模式y=k/1+ea-bx。[结论]干重曲线和最大灌浆速率出现的时间因品种而异。

[Objective]The study aimed to search the best period of harvest and improve the rate of merchandise of Waxy Maize fresh ear.[Method]Dry weight and kernel filling rate was studied among six waxy maizes.[Result]The results showed that dry weight after pollination presented an ＂S-shaped＂ curve,which could be simulated by natural growth patterns.[Conclusion]The ＂S-shaped＂ curve and the date of the max kernel filling rate due to the difference Cultivars.