种植密度和施氮量对鲜食糯玉米果穗性状的影响研究

采用裂区设计研究了不同种植密度和施氮量对鲜食糯玉米果穗性状的影响,结果表明,随种植密度提高,鲜食糯玉米果穗长度有所下降,果穗直径显著变小,果穗行粒数降低,秃尖长度逐渐增加,单果穗鲜重显著下降,但果穗籽粒行数和穗轴直径与种植密度无关。果穗长度、果穗籽粒行数、穗轴直径、单穗重均以中等施氮量最大,果穗秃尖度以中等施氮量最低。种植密度和施氮量对果穗主要性状也有明显的交互效应。

The Study of Effects on the Fresh Food Glutinous Corn Ear Characteristics under the Different Planting Density and Nitrogenous Application

Laceration was proceeded to study the effects of the fresh food glutinous corn ear characteristics under different density and nitrogenous application.The result showed that the ear length got a littleshorter,the ear diameter got shorter obviously,the row number of the single corn grain got fewer,the single ear weight declined markedly,but the ear bald length increased gradually as the planting density increased.However,the ear grain row and ear stem diameter are foreign to density.The ear length,ear grain row,ear stem diameter and the single ear weight are at the highest level when the nitrogenous application was in the middle level,but the ear bald length had a lowest length at the same nitrogenous application.The interactive effects on main traits of the ear are also obvious under different density and different nitrogenous application.