摘要
通过对油研九号分期播种的叶片性状变化及相关性的研究,结果表明,不同播期对主茎叶片数的影响存在极显著差异,播期与主茎叶片数存在极显著负相关。播期对生长进程中的平均叶面积指数、叶重占全株总重百分比的平均值、单株平均绿叶数和叶重的影响不存在显著差异。不同播期与生长进程中叶重占全林总重百分比的平均值间呈极显著正相关,与生长进程中的平均叶面积指数、单株平均绿叶数和叶重呈抛物线关系。不同播期的叶面积指数、叶重占全株总重的百分比、单株绿叶数和叶重与生长进程均是抛物线关系。
The study was carried out by effects of different seeding date on leaf characters of Youyan. The results showed that there were very significant differences among effects of different seeding date on number of main stem leaf. The number of main stem leaf was very significant negatively correlation with seeding date. There were no significant difference among effects of seeding date on average leaf area index, average value of percentage of leaf weight to total weight of single plant,average green leaf number and leaf weight of single plant. Different seeding date was very significant positively with average value of percentage of leaf weight to total weight of single plant in the course of growth, close relationship with average leaf area index,average green leaf number and leaf weight of single plant,that were expressed by parabolical curves. Average leaf area index and maximum leaf area index were all significant positive correlation with yield in different seeding date course of growth. There was no significant and significant positive correlation between average green leaf number,maximum green leaf number with yield respectively. There were parabolical curves correlation between leaf area index, percentage of leaf weight to total weight of single plant, green leaf number and leaf weight of single plant with the course of growth in different seeding date.
出处
《山地农业生物学报》
2003年第5期377-381,390,共6页
Journal of Mountain Agriculture and Biology
基金
贵州省科学技术厅基金[2002(9018)]
关键词
油菜
油研九号品种
分期播种
叶片性状
相关性
产量
Youyan No. 9
seeding date
leaf character
yield
correlation character
analysis of variance
