摘要
基于所确定的玉米苗期耐盐碱筛选最宜浓度和适宜的生理生化指标,对14个吉林省主推玉米杂交种进行苗期盐碱耐性分析和大田鉴定。结果表明:大田鉴定结果与苗期耐盐碱能力综合评价分级基本吻合;苗期盐碱耐性弱的杂交种其大田减产明显,其减产率最高为44.12%,最低为17.39%,证明鉴定方法与评价指标科学有效,并可以初步筛选剔除一些苗期胁迫表现弱的材料;对于苗期胁迫耐盐碱能力综合评价表现较强的杂交种,其大田减产率变化幅度不大,变化范围在9.33%～11.76%,具体品种是否适宜盐碱地种植需经进一步的大田鉴定。
The appropriate concentration and physiological and biochemical indices for salt-alkali tolerance screening in maize seedling were established.Based on those,both salt-alkali tolerance analysis in seedling and production measurement in field were carried out for fourteen maize hybrids,which were used predominantly in Jilin province.The main results were summarized that the rank of reduction percentage in field coincided with the salt-alkali tolerance grading in seedling.Production reduction for hybrids havi...
出处
《玉米科学》
CAS
CSCD
北大核心
2010年第5期14-18,共5页
Journal of Maize Sciences
基金
农业部转基因重大专项"抗逆转基因玉米新品种培育"(2009ZX08003-018B)
吉林省农业科学院博士后基金
关键词
玉米
杂交种
盐碱胁迫
大田鉴定
Maize
Hybrid
Saline-alkali stress
Production in the field
