摘要
在旱地保护性耕作条件下,以11个不同基因型小麦(Triticum aestivumL.)品种为材料,研究了植被归一化指数(NDVI,Normalized difference vegetation index)与产量构成和抗旱性的关系。结果表明,不同基因型小麦各生育期的归一化植被指数(NDVI)存在显著性差异;小麦抽穗期NDVI值与其干旱产量指数呈正相关,抽穗期NDVI值较高的小麦品种其干旱产量指数也较高;本试验条件下,石麦15、石家庄8号和烟Blu6439三个小麦品种的干旱产量指数较高。
Eleven genotypes of wheat varieties were used to research the relation between normalized difference vegetation index （NDVI） and yield components and drought resistance under dryland conservation tillage condition. The results showed that NDVI values of different wheat genotypes differed significantly at different development stages. Value of wheat NDVI expressed a positive correlation with drought yield index at heading stage. Those who had higher NDVI value of heading had better drought yield index. Under the experimental conditions, Shimai 15, Shijiazhuang 8 and Yah Blu6439 have higher drought yield index than others.
出处
《干旱地区农业研究》
CSCD
北大核心
2008年第6期47-50,共4页
Agricultural Research in the Arid Areas
基金
国际合作挑战计划项目(CPWFYRB200501)
国家科技支撑计划项目(2006BAD02A09-JS01
2006BAD21B04-5
2006BAD01A02)
国家高技术研究发展计划重点项目(2006AA100102)
公益性行业(农业)科研专项经费项目(NYHYZX07-002)
农业科技成果转化资金项目(05EFN213700156)
关键词
小麦
保护性耕作
归一化植被指数
抗旱性
wheat
conservation tillage
normalized difference vegetation index
drought resistance
