摘要
大豆硬粒(种皮不吸水)性状是一个能在不良环境中保持种子质量和活力的重要种子性状。本文研究了用育种品系D86—4448(硬粒)与商用大豆品种A6297(正常粒)杂交后的硬粒性状的遗传模式及与其它性状的关系。F_2及其亲本植株人工脱粒后在蒸馏水中(温度为24℃)吸水24和48小时。24小时后,422株F_2群体中,226株硬粒,165株中间型,31株正常粒的分离很接近9:6:1的比例,表明硬粒性状受两个主基因控制(x^2=1.67,P>0.40),基因间有累加效应,硬粒对正常粒为显性。生育期、百粒重、种皮颜色和光泽与硬粒性状没有关系,荚的吸水性与种子的吸水性正相关。
Water impermeable seedcoat is an important seed characteristic that protects against quality deterioration and loss of viability under adverse environmental conditions. The inheritance of impermeable seedcoat (hard seed) in soybean (Glycine max (L) Merr. ) and the relationship between hard seed and other traits were studied in a cross between hard seeded breeding line D86 -4448 and normal seed cultivar A6297. The seeds of F2 plants and their parents were immersed in distilled water in petri dishes for 24h and 48h at a temperature of 24 ℃. After 24h, from a total of 422 F2plants, 226 plants were hard seeded, 165 were intermediate, and 31 plants had normal permeable seed. This F2 segregation agreed closely with a 9 : 6 : 1 ratio and demonstrated that the hard seed trait was controled by two major genes(x2=1. 67,P>0. 40) Complemeatary effects and hard seed dominent over normal seed. Seed size, and seedcoat color and glossiness were not correlated with hard seededness. Water permeability of pod shall was significantly positively correlated with seedcoas permeability.
出处
《大豆科学》
CAS
CSCD
北大核心
1992年第1期88-92,共5页
Soybean Science
关键词
硬粒种
遗传
大豆
种皮
不吸水性
Soybean
Inheritance of hard-seed
Seedcoat not permeability
