摘要
本项研究创建和完善了一套规范化的利用多种鉴定方法(田间鉴定、人工模拟逆境筛选和实验室多项指标测定),运用综合指标评价玉米品种抗冷性的技术体系,并确定了指标的内在联系,使抗冷性指标数量化。用以上方法对7663份玉米品种(系)进行了芽期、苗期和灌浆期抗冷性评价,并从中筛选出强抗冷材料1569份,育成6个抗冷杂交品种,在黑龙江、辽宁中、北部地区推广利用,获得显著经济效益。本研究在作物抗逆生理和测定技术上有所突破和创新。
A standardized evaluation system for maie cold hardiness was proposed. It was combined with field test, imitated cold-stress test and multiple laboratory target assay, and had been verified to be a reliable technique for both phenotype and genotype screening at different growth period. The potential use of the system on maize breeding was discussed.
出处
《中国农学通报》
CSCD
1993年第2期23-27,共5页
Chinese Agricultural Science Bulletin
关键词
玉米
抗冷性
鉴定
种子活力指数
Corn
Toleramce to cald
Identification
Seed Integrated vigor Index