摘要
试验于１９８９～１９９１年在河南安阳中棉所壤土地进行。旨在研究钾素对两个棉花品种不同生育时期主茎叶干重变化规律和产量形成的效应。结果表明，两个品种７月１０日～８月１日不同叶位主茎叶干重的变化曲线均呈抛物线，８月１０日～２０日曲线趋向Ｓ形，施钾增加了棉株不同时期不同主茎叶的干重积累，相对增强了不同时期不同主茎叶的光合强度，并延长了主茎叶的光合时间；施钾还提高了棉株生殖器官所占干重的比率。因此提高了棉花产量，改善了棉纤维品质。钾素对中熟偏早类型品种中棉所１７的作用大于中熟类型中棉所１２。
The effects of potassium on dry weight in stem leaves of CRI12 and CRI17 at dif-ferent stages and their plant physiological activity and yield were studied on loam field atAnyang from l989 to l991. The variant curvalues of dry weight in stem leaves of both vari-eties at different nodes showed parabola一type line from July 10 to August l, and showed S一type line from August 10 to 20. Application of potassium could increase the dry weight in stemleaves and the photosynthesis of cotton plants at different stages, and enlongnte the photosyn-thetic time of stem leaves and increase the ratio of reproductive organs to total dry weight. Thepotassium could increase the cotton yield and improve the fiber quality.
出处
《棉花学报》
CSCD
北大核心
1994年第S1期52-57,共6页
Cotton Science
关键词
钾素
光合产物
主茎叶
potassium
photosynthetic matter
stem leaves
