摘要
利用不同基因型多隐纯合体甜玉米材料进行杂交,获得杂交种,再同时种植这些杂交组合及其对应亲本,通过观测一系列农艺性状,灌浆期测定主要品质指标,并进行相关性分析。主要结果如下:①授粉后18d果皮厚度与青穗产量呈极显著的正相关,其余4个品质性状与青穗产量相关不显著,各主要品质性状间相关不显著。②干子粒收获期蛋白质含量与含油量相关不显著,胚重比值、胚油分含量与子粒含油量呈显著的正相关,其余11个性状与含油量相关不显著。穗粗与蛋白质含量呈显著正相关,其它性状与蛋白质相关不显著。③含糖量受加性和非加性效应控制,其它品质性状主要受加性效应控制。④除含水量外,其余各品质性状均存在丰富的遗传变异。
Different genotypes of multiple recessive homozygotes of sweet corn were crossed with each other, and the hybrids were got. They were planted together with their parents at the same time. A series of agronomic characters were studied, and the main quality characters of kernels were studied in the filling period. The correlation between quality characters, parts of agronomical characters and yield characters were studied. The main results were as follows： ①Pericarp thickness was significantly and positively correlated with the yield of fresh ear on the 18th day after pollination. And the others 4 quality characters were not significantly correlated with the yield of fresh ear. Correlations between main quality characters were not significant. ②There was not significant correlation between protein content and oil content during the harvest. Both of embryo weight ratio and oil content of embryo were significantly and positively correlated with kernel oil content. And the correlations between the others 11 characters and oil content were not significant. Ear diameter was significantly and positively correlated with protein content. ③The sugar contents of multiple homozygous materials were controlled by both of additive and non-additive effect. The other quality characters were mainly controlled by additive effect. ④Besides the moisture content, the genetic variation of the other quality characters were large.
出处
《玉米科学》
CAS
CSCD
北大核心
2005年第3期6-9,共4页
Journal of Maize Sciences
基金
广西科技厅(桂科攻0228002-5)
广西大学重点课题(2003ZD02)
关键词
甜玉米
多隐纯合体
品质性状
遗传规律
Sweet corn
Multiple recessive homozygote
Quality characters
Genetic law
