摘要
在超高产栽培条件下 ,多穗型小麦品种豫麦 49四个密度处理生育后期的光合特性及产量存在着差异。每公顷基本苗 15 0× 10 4处理的旗叶净光合速率 (Pn)、RUBP羧化酶 (RU BPcase)活性、叶绿素 (Chl)含量、群体光合速率 (CAP)、群体叶源量 (CL SC)等几个重要光合指标均表现出明显优势 ,且产量极显著高于其它处理。研究结果表明 ,多穗型小麦品种豫麦 49超高产栽培应适当控制基本苗数 ,协调好群体与个体的关系 ,以提高生育后期光合能力 ,增加干物质积累 。
Under super high yield cultivate conditions, there were differences of the photosynthesis characteristics and the grain yield at late growth stages for four planting denisty treatments of small spike type cultivar (Yumai 49). The 150×10 4 basis seedlings per hm 2 treatment had apparent advantages in Pn of the flag leaf, RUBPcase activity, Chl. content, canopy apparent photosynthesis and canopy leaf source capacity. The grain yield of it was higher than that of the others significantly. The main cultivating way of small spike type cultivar based on the results was controlling the basis seedlings, harmonizing the relationship of the population and the individuals, and enhancing the photosynthesis capicity, and increasing dry production accumulation.
出处
《麦类作物学报》
CAS
CSCD
2001年第3期64-67,共4页
Journal of Triticeae Crops
基金
国家"九五"重中之重科技攻关项目部分研究内容 (项目编号 :95 -0 0 1-0 2)
关键词
小麦
光合特性
产量
超高产栽培
生育后期
种植密度
Planting density
Wheat
Super high yield
Photosynthesis characteristics
Yield
