摘要
针对我国土壤钾素资源短缺,大豆种质资源丰富的特点,以东北三省72份大豆品种(系)为试材,采用田间试验的方法,设低钾和对照2个处理,通过3 a的试验,以产量、钾响应度为指标评价大豆对低钾胁迫的基因型差异。结果表明:不同大豆品种(系)的产量、钾响应度的差异十分明显,根据低钾条件下大豆的产量和钾响应度,将供试品种(系)划分为高产低响应型、高产高响应型、低产低响应型和低产高响应型。其中T40、铁豆36和铁丰33为高产低响应型;辽豆17、石二和铁丰31为高产高响应型;这些品种(系)可以为低钾土壤的大豆生产和钾高效大豆品种的选育提供参考。
In view of the potassium deficiency and abundant soybean germplasm resources in China,72 soybean varieties（lines） from northeast China were as test materials.Field experiment was conducted with low potassium stress and adequate potassium supply.Genotype difference in low potassium stress was evaluated by yield and K responsiveness from 2006 to 2008.The results showed that difference of yield and K responsiveness among soybean varieties（lines） were obvious.According to the yield in low potassium stress and K responsiveness,soybean varieties（lines） were divided into four types：（1） high yield and low K responsiveness type;（2） high yield and high K responsiveness type,（3） low yield and low K responsiveness type,（4） low yield and high K responsiveness type.T40,Tiedou 36 and Tiefeng 33 were high yield and low K responsiveness type.Liaodou 17,Shi 2 and Tiefeng 31 were high yield and high K responsiveness type.These soybean varieties（lines） can provide the reference for soybean production in potassium deficient soil and breeding of potassium high efficiency soybeans.
出处
《大豆科学》
CAS
CSCD
北大核心
2011年第3期413-418,共6页
Soybean Science
基金
国家"十一五"科技支撑计划(2006BAD02A15)资助项目
沈阳农业大学青年教师基金(2005056)资助项目
关键词
大豆
低钾胁迫
钾响应度
产量
Soybean
Low-potassium stress
K responsiveness
Yield
作者简介
李春红（1974-），女，在读博士，讲师，从事作物营养与遗传育种研究。E-mail：lichunhong0210@sohu．com。
通讯作者：曹敏建（1953-），男，教授，博士生导师，主要从事作物抗逆生理研究。E-mail：caominjian@163．com。
