| 不同密度对杂交中稻——再生稻产量的影响 |
| |
| 引用本文： | 卿国林.不同密度对杂交中稻——再生稻产量的影响[J].安徽农业科学,2009,37(14):6387-6388. |
| |
| 作者姓名： | 卿国林 |
| |
| 作者单位： | 永州职业技术学院,湖南永州,425000 |
| |
| 摘 要： | 目的]研究杂交中稻—再生稻栽培的适宜密度。方法]以培两优288为材料，设计30.32万、46.62万、59.18万、76.92万株/hm^2 4个移栽密度，采用随机区组设计，3次重复，研究移栽密度对产量的影响。结果] 4个处理中，头季稻、再生稻和总产都以46.62万株/hm^2基本苗的处理最高，分别为8.7285、5 711.5、14.4400 kg/hm^2。该处理虽然密度不大，但群体结构合理，有效穗、实粒数、结实率、千粒重适中，因而产量高。结论] 再生稻要高产，头季稻和再生稻必须要有合理的群体结构。
|
| 关 键 词： | 两系杂交水稻 中稻 再生稻 高产栽培 冷浸田 |
The Effects of Different Density on Yield of Hybrid Meditim Rice-Ratooning Rice |
| |
| QING Guo-lin.The Effects of Different Density on Yield of Hybrid Meditim Rice-Ratooning Rice[J].Journal of Anhui Agricultural Sciences,2009,37(14):6387-6388. |
| |
| Authors: | QING Guo-lin |
| |
| Institution: | QING Guo-lin (Yongzhou Vocational and Technical College, Yongzhou, Hunan 425000) |
| |
| Abstract: | Objective] The study researches suitable transplanting density of hybrid medium rice——ratoon rice.Method] With two-line hybrid rice of Peiliangyou 288 as tested materials,designing 4 transplanting density of 30.32×105,46.62×105,59.18×105 and 76.92 ×105 plants/hm2,using randomized block design and 3 repeats,the effect of transplanting density on yield is researched.Result] The rice yield is the highest when the density is 4.662×105 plants/hm2,the yield is 8728.5,5711.5 and 14 440.0 kg/hm2,respectively.The density is not big,but the population structure is reasonable under this treatment,effective panicle number,filled grains seed-setting rate and 1 000-grain weight are moderate,the yield is high.Conclusion] Ratoon rice need high yield,main crop rice and ratoon rice need have reasonable population structure. |
| |
| Keywords: | Two-line hybrid rice Medium rice Ratoon rice High-yielding culture Cold-waterlogged field |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
