Biomass allocation and yield formation of cotton under partial rootzone irrigation in arid zone
文献类型：期刊论文
| 作者 | Tang ; Li-Song ; Li ; Yan ; Zhang ; Jianhua |
| 刊名 | PLANT AND SOIL
 |
| 出版日期 | 2010 |
| 卷号 | 337期号:40545页码:413-423 |
| 关键词 | WATER-USE EFFICIENCY PHYSIOLOGICAL-RESPONSES DEFICIT IRRIGATION XYLEM SAP STOMATAL CONDUCTANCE LEAF CONDUCTANCE MAXIMIZE CROP SOIL GROWTH FIELD |
| ISSN号 | 0032-079X |
| 通讯作者 | Li, Y, Chinese Acad Sci, Fukang Stn Desert Ecol, Xinjiang Inst Ecol & Geog, 818 S Beijing Rd, Urumqi, Xinjiang, Peoples R China |
| 中文摘要 | Partial rootzone irrigation (PRI) means only part of the root system is exposed to watering at one round of irrigation while the rest part is left in drying soil. The method has been proved a water-saving irrigation without much reduction in yield. This study investigated how the biomass distribution and reproductive development of cotton are affected under PRI. A three-year field irrigation experiment was conducted with a 30% reduction in irrigation amount on cotton in an arid area of Xinjiang in northwest China. Three treatments included conventional furrow irrigation (CFI) as control, alternative furrow irrigation (AFI) and fix furrow irrigation (FFI). PRI decreased stomatal conductance on the days just after irrigation when cotton plants were not under water stress, but there was no difference in stomatal conductance among irrigation treatments when plants were under water stress on the days just before next irrigation. Non-hydraulic signals from the dried rootzone inhibited the stomatal opening under well watered condition, but the moderate water deficit developed in the shoots under PRI may have played a more important role in biomass allocation and yield formation. This moderate water stress reduced shoot biomass accumulation and increased root biomass. While the vegetative and reproductive parts of the shoot were reduced in the same proportion under the PRI, the final yield was much less reduced in PRI, indicating an increased reproductive efficiency of cotton. Furthermore, PRI advanced the development of the reproductive organs and led to earlier flowering. The early matured bolls produced seed-cotton yield with a higher market value. AFI plants consistently performed better than FFI in the 3 years. We conclude that AFI can be used as a better deficit irrigation method with positive regulative effects on stomatal opening and yield forming process. |
| 学科主题 | 植物生态学 ; 作物栽培学与耕作学 |
| 收录类别 | SCI |
| 公开日期 | 2011-08-19 |
| 源URL | [http://ir.xjlas.org/handle/365004/9866]  |
| 专题 | 新疆生态与地理研究所_中国科学院新疆生态与地理研究所(2010年以前数据) |
| 推荐引用方式 GB/T 7714 | Tang,Li-Song,Li,et al. Biomass allocation and yield formation of cotton under partial rootzone irrigation in arid zone[J]. PLANT AND SOIL,2010,337(40545):413-423. |
| APA | Tang,Li-Song,Li,Yan,Zhang,&Jianhua.(2010).Biomass allocation and yield formation of cotton under partial rootzone irrigation in arid zone.PLANT AND SOIL,337(40545),413-423. |
| MLA | Tang,et al."Biomass allocation and yield formation of cotton under partial rootzone irrigation in arid zone".PLANT AND SOIL 337.40545(2010):413-423. |
入库方式： OAI收割
来源：新疆生态与地理研究所
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