| 马 群，杨 雄，张 庆，等.不同氮肥群体最高生产力水平水稻品种间株型研究[J].广东农业科学,2015,42(13):33-36 |
|
查看全文
HTML
不同氮肥群体最高生产力水平水稻品种间株型研究 |
| Characteristics of plant type of rice varieties with different productivity level |
| |
| DOI： |
| 中文关键词: 水稻 品种 生产力 株型 |
| 英文关键词: rice varieties productivity plant type |
| 基金项目: |
|
| 摘要点击次数: 1398 |
| 全文下载次数: 641 |
| 中文摘要: |
| ：以长江中下游地区有代表性的50 个早熟晚粳水稻品种为供试材料，对不同氮肥群体最高生产力水
稻品种的株型进行比较研究。结果表明：株高、基部节间粗、穗长、着粒密度、单穗重均随着氮肥群体最高生产力
的增加而增加；生产力处于顶层和高层水平品种具有较好的叶片形态，叶基角和叶片披垂度较小，叶片挺直，茎生
叶片在茎秆上的着生高度适宜，层次明显，并有较高的群体LAI、有效LAI 和高效LAI，特别是高效LAI，两者的
高效LAI 均大于5。 |
| 英文摘要: |
| With 50 early-maturing late Japonica rice varieties adopted in the region of Yangtze River as materials，
the characteristics of plant type of rice varieties with different productivity level were studied. The results showed that，
plant height，width of basal internodes，ear length，grain density and panicle weight of rice significantly increased
with the productivity level increasing. Compared with middle- and low-level yield cultivars，top- and high-level yield
cultivars had superior blade shapes，the leaf basic angle and leaf drop angle of the top three leaves were smaller，the
leaf were straight，the leaf inserted height were appropriated，and they had higher population LAI，valid LAI and highefficiency
LAI，especially，the high-efficiency LAI was higher than 5. |
|
查看/发表评论 下载PDF阅读器 |
