不同类型玉米子粒灌浆特性分析

Analysis on Kernel Filling Characteristics for Different Maize Types

以普通玉米、糯玉米、爆裂玉米和甜玉米为材料,用Logistic方程拟合子粒灌浆过程,分析一系列次级灌浆参数。结果表明:不同类型玉米粒重表现为普通玉米>糯玉米>甜玉米>爆裂玉米,不同部位粒重表现为下部>中部>上部。相关分析表明,玉米子粒最终粒重的高低主要取决于灌浆速率的大小,而不是灌浆持续时间的长短。

Normal corn, waxy corn, pop corn and sweet corn were used in this experiment. Logistic equation was used to simulate kernel filling processes of four maize types. A series of subsequent parameters of kernel filling were analyzed. The results showed that kernel weight was in the order of normal corn 〉 waxy corn 〉 sweet corn 〉 pop corn among different maize types and basal 〉 middle 〉 apical among different ear positions. Correlation analysis indicated that the final kernel weight of maize rest with the rate of filling mostly, not the duration of filling.