| 松嫩平原碱化草甸野大麦无性系构件的定量分析 |
| |
| 引用本文： | 李红,张成武,等.松嫩平原碱化草甸野大麦无性系构件的定量分析[J].草业学报,2000,9(4):13-19. |
| |
| 作者姓名： | 李红 张成武 |
| |
| 作者单位： | [1]东北师范大学草地研究所，吉林长春130024 [2]吉林省前郭县草原管理站，吉林前郭131100 |
| |
| 基金项目： | 国家自然科学基金资助! (No .39770 5 36 ) |
| |
| 摘 要： | 野大麦无性系构件的数量决定于丛径的大小，无性系中营养蘖构件组分的数量占较大比重，为69.15%，是生殖蘖的2.24倍，但生殖蘖和营养蘖的生长与物质生产相差悬殊，平均生殖蘖重是平均营养蘖重的2.17倍，致使无性系对营养生长和生殖生长的能量分配大体相等。无性系构件的生物量，以及营养蘖和生殖蘖构件组分的生物量与丛径和总蘖数间均存在着极显著的正相关关系；平均单蘖重、平均的生殖蘖重均随着无性系构件数量的增加呈幂函数形式下降；无性系的芽数随着丛径和总蘖数的增大而有规律地增加；抽穗率在大小不等的无性系间具有相对稳定性。
|
| 关 键 词： | 营养蘖 生殖蘖 构件 无性系 野大麦 碱化草甸 生物量 种群生态学 牧草 |
Quantitative analysis on modules of Hordeum brevisubulatum clone in alkalized meadow in the Songnen Plain, China |
| |
| LI Hong,YANG Yun fei,ZHANG Cheng wu.Quantitative analysis on modules of Hordeum brevisubulatum clone in alkalized meadow in the Songnen Plain, China[J].Acta Prataculturae Sinica,2000,9(4):13-19. |
| |
| Authors: | LI Hong YANG Yun fei ZHANG Cheng wu |
| |
| Abstract: | The number of tillers of Hordeum brevisubulatum (Trin.) Link clone depends on its clone size. Vegetative tiller in the clone holds the dominant position and its proportion is 69.15% . The number of vegetative tiller is 2.24 times the one of productive tillers and its biomass and yield are more than the one of reproductive tiller, the mean weight of each reproductive tiller is 2.17 times the one of each vegetative tiller. So, biomass of the clone is divided equally between vegetative growth and reproductive growth. Biomass of the clone and yields of the vegetative tillers and yields of the reproductive tillers are positively correlated to the clone size and the number of tillers in the Hordeum brevisubulatum clone. The mean weight of each tiller is decreased power functionally with increasing the number of tiller, so does the mean weight of each reproductive tiller. The buds of the clone are increased regularly with increasing the clone size and tillers. Among the 30 clones, earing percent is comparatively consistant. |
| |
| Keywords: | vegetative tiller reproductive tiller module clone Hordeum brevisubulatum alkalized meadow |
| 本文献已被 CNKI 维普 等数据库收录！ |
