Plant Growth, Yield Components, Economic Responses, and Soil Indigenous K Uptake of Two Cotton Genotypes with Different K-Efficiencies
文献类型：期刊论文
| 作者 | Jiang Cun-cang2; Xia Ying2; Chen Fang1; Lu Jian-wei2; Wang Yun-hua2 |
| 刊名 | AGRICULTURAL SCIENCES IN CHINA
 |
| 出版日期 | 2011-05-20 |
| 卷号 | 10期号:5页码:705-713 |
| 关键词 | cotton (Gossypium hirsutum L.) dry matter partitioning K depletion indigenous K uptake economic parameter |
| ISSN号 | 1671-2927 |
| DOI | 10.1016/S1671-2927(11)60053-9 |
| 英文摘要 | HG103, a high K-efficiency cotton cultivar with high-yield potential, and LG122, a low K-efficiency cotton cultivar with low-yield potential were used to study the genotypic variation on yield, economic responses, and soil indigenous K exploitation for cotton in pot and field conditions in 2006 and 2007. Results indicated that both the cultivars differed significantly in the rate of translocation of dry matter into reproductive organs and the time of running into reproductive stage. Cotton yield and economic parameters of HG103 were much better than LG122. Potassium content in cotton shells reached the highest level at maturity stage for both genotypes. Results also showed that the K content in each plant part of HG103 was lower than that of LG122. The two genotypes showed different efficiencies and abilities on absorbing soil rapidly available K and slowly available K. LG122 showed higher absorption of K rate than HG103 after K fertilization, but on the contrary, HG103 uptake more soil indigenous K than LG122 in no K fertilization treatment. This result indicated that HG103 could tolerant and absorb more soil indigenous K than LG122, under condition of soil K stress. LG122 could grow well and absorb more K nutrient when soil K supply is sufficient. Our results demonstrated that higher K content in plant tissues and higher K uptake by plant may not an exclusive condition for high yield planting with K fertilization. Earlier translocation of more dry matters into reproductive organs is one of the key mechanisms of high K use efficiency in cotton. |
| 资助项目 | National Natural Science Foundation of China[40801112] ; Chinese Academy of Sciences[KSCX2-YW-N-002] ; China Program of International Plant Nutrition Institute[IPNI-HB-37] |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:000290591300007 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/869]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Chen Fang |
| 作者单位 | 1.Chinese Acad Sci, Wuhan Bot Garden, Wuhan 430074, Peoples R China 2.Huazhong Agr Univ, Coll Resources & Environm, Wuhan 430070, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang Cun-cang,Xia Ying,Chen Fang,et al. Plant Growth, Yield Components, Economic Responses, and Soil Indigenous K Uptake of Two Cotton Genotypes with Different K-Efficiencies[J]. AGRICULTURAL SCIENCES IN CHINA,2011,10(5):705-713. |
| APA | Jiang Cun-cang,Xia Ying,Chen Fang,Lu Jian-wei,&Wang Yun-hua.(2011).Plant Growth, Yield Components, Economic Responses, and Soil Indigenous K Uptake of Two Cotton Genotypes with Different K-Efficiencies.AGRICULTURAL SCIENCES IN CHINA,10(5),705-713. |
| MLA | Jiang Cun-cang,et al."Plant Growth, Yield Components, Economic Responses, and Soil Indigenous K Uptake of Two Cotton Genotypes with Different K-Efficiencies".AGRICULTURAL SCIENCES IN CHINA 10.5(2011):705-713. |
入库方式： OAI收割
来源：武汉植物园
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