不同栽培条件下糯玉米鲜产及构成因素间的相关性分析

目的]探明不同栽培条件下,泸玉糯9号各穗部主要性状与产量的相关性。方法]以鲜食糯玉米品种泸玉糯9号为材料,采用"3414"肥效试验,设2种种植方式(直播、移栽)、3种密度(45 000、52 500、60 000株/hm2)处理,对6个穗部性状(穗长、穗粗、秃尖长、行数、行粒数、千粒重)与鲜产进行相关分析。结果]直播条件下,穗长、穗粗与鲜穗产量呈显著或极显著正相关;移栽条件下,各性状与鲜穗产量间的相关性表现各不相同;糯玉米高产目标性状要建立在不同品种、栽培措施基础上进行抉择。结论]该试验为糯玉米高产提供理论基础。

Correlation Analysis Between Yield and Its Components under Different Cultivation Conditions

Objective] To study the correlation between the yield and the main characters of ears of Luyunuo No.9.Method] Taking Luyunuo No.9 as the research material,two planting modes (direct broadcasting and transplantation) and three densities (45 000,52 500 and 60 000 plants/hm2) were designed for treatment based on "3414" fertilization experiment.Related analysis between six characters of ear(ear length,ear diameter,barren ear tip,ear row number,kernels per row,1000-kernel weight) and fresh ear yield were studied.Result] Under direct broadcasting condition,ear length and ear diameter were positively correlated with fresh ear yield significantly or extremely significantly.Under transplantation condition,the correlations between character and fresh ear yield varied.Target traits of high yield of waxy corn should be relied on the choice of different varieties and cultivation measures.