摘要
以我国20世纪60年代以来20份玉米单交种和32份自交系为材料,研究玉米单交种和自交系子粒脱水速率的差异。结果表明:20份单交种生理成熟期子粒含水量变化范围在25%～35%,收获期大部分单交种的子粒含水量集中在25%左右;32份自交系生理成熟期子粒含水量变化范围在25%～38%,收获期大部分自交系的子粒含水量在20%～25%;生理成熟后各单交种和自交系的脱水速率有明显差异。
Using twenty maize hybrids and their thirty parents in different period in China as the materials, the grain water content and dehydration rate of maize were studied in field after physiological maturity. The results showed that grain water content of 20 single cross hybrids varied from 25% to 35% at physiological maturity ,grain moisture content of most hybrids was concentrated at about 25% at the harvest ;grain moisture content of 32 inbred lines ranged from 25% to 38% at physiological maturity, grain moisture content of most inbred lines ranged from 20% to 25% at the harvest;It existed significant differences in the grain dehydration rate of hybrids and inbred lines after physiological maturity.
出处
《作物杂志》
CAS
CSCD
北大核心
2012年第5期26-29,共4页
Crops
基金
国家十二五863计划"强优势玉米杂交组合的创制与应用"(2011AA10A103)
关键词
玉米
单交种
自交系
子粒
含水量
脱水速度
Corn
Single cross hybrid
Inbred line
Grain
Moisture content
Dehydration rate
