糯玉米农艺性状与鲜穗产量灰色关联度分析

[目的]明确糯玉米主要农艺性状对鲜穗产量的影响,为四川省优质高产糯玉米的选育和栽培提供理论依据。[方法]通过灰色关联度分析法分析鲜食糯玉米10个农艺性状与产量的关系。[结果]糯玉米的农艺性状与鲜穗产量的关联度大小为穗长生育期穗粗秃尖长行粒数株高穗位高穗行数百粒重出籽率,穗长是影响鲜穗产量的主要因素,出籽率对产量的影响较小。[结论]在鲜食糯玉米育种中,应以穗长、生育期、穗粗、秃尖长等几个性状为主要目标,提高鲜食糯玉米的有效选择。

Grey Relational Analysis for Agronomic Traits and Fresh Ear Yield of Waxy Corn

[Objective] The aim was to clear effects of main agronomic traits and fresh ear yield of waxy corn to provide theoretical basis for breeding and cultivation of good quality and high yield waxy corn in Sichuan Province.[Method] We analyzed the relationships between 10 agronomic traits and fresh ear yield of waxy corn by grey relational analysis.[Result] It showed that fresh ear yield was closely related to spikelength,growth period,ear diameter and bald tip length,and the next were kernel per row,plant height,ear height,row per ear,kernel weight and kernel rate.The spikelength was the main factor affecting fresh ear yield of waxy corn,while the kernel rate had less effect on yield.[Conclusion] It should take spikelength,growth period,ear diameter and bald tip length as main breeding objectives to accelerate the effective selection of fresh waxy com.