| 段志平,刘天煜,张永强,焦超,栾鹏飞,杨涛,石岩松,田钰泉,郝向东,李鲁华,张伟.枣棉间作系统棉花产量的形成与影响因素[J].干旱地区农业研究,2018,36(3):93~100 |
| 枣棉间作系统棉花产量的形成与影响因素 |
| Formation and influencing factors of cotton yield in jujube\|cotton intercropping system |
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| DOI：10.7606/j.issn.1000-7601.2018.03.14 |
| 中文关键词: 枣棉间作 间作模式 光合特性 经济效益 产量 |
| 英文关键词:Jujube-cotton intercropping intercropping pattern photosynthesis treats economic benefit yield |
| 基金项目:国家自然科学基金（31460335，31560376），中国博士后科学基金面上项目（2015M582737），石河子大学高层次人才科研启动资金专项（RCZX201422） |
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| 中文摘要: |
| 枣棉间作条件下，通过设置两行枣树之间种植4行棉花（Int-4）与2行棉花（Int-2）两种不同的间作模式，研究一年生枣树对间作棉花的产量形成与影响因素。结果表明，不同间作模式棉花在盛花期前LAI、SPAD及光合生理特性差异不显著，盛花期后差异显著。与单作棉花相比，Int-4间作模式下棉花的株高、LAI及净光合速率（Pn）、气孔导度（Gs）、蒸腾速率（Tr）和产量比单作下降5.85%、10.40%、15.51%、13.26%、9.18%和41.61%，其胞间CO2浓度（Ci）比单作增加4.18%；Int[CD*2]2间作模式下棉花的株高、LAI及净光合速率（Pn）、气孔导度（Gs）、蒸腾速率（Tr）和产量比单作下降3.10%、5.39%、11.80%、9.25%、6.09%和47.74%，其胞间CO2浓度（Ci）比单作增加0.84%；SPAD差异不显著。而经济收入表现为间作4行棉花模式>间作2行棉花模式>单作棉花，4行枣棉间作与2行枣棉间作相比，株高、LAI和干物质质量分别显著下降2.85%、5.29%和6.85%，Int-4产量比Int-2显著增加11.73%，而SPAD值和光合生理特性差异不显著。因此在枣棉间作系统中，适当增加棉花种植密度有利于棉花高产，同时有利于经济收入的增加。 |
| 英文摘要: |
| Setting up two jujube-cotton intercropping systems, we is planted 4 rows of cotton or 2 rows of cotton between two rows of jujube, to study on the yield formation and influencing factors of one-year jujube on intercropping cottons. The results indicated that there were no significant differences in leaf area index, SPAD value and photosynthetic physiological characteristics in different intercropping patterns before flowering period, while there was significant difference after flowering period. Compared with 1-row cotton, the plant height, leaf area index and net photosynthetic rate, stomatal conductance, transpiration rate and yield of cotton in Int-4 intercropping pattern decreased by 5.85%, 10.4%, 15.51%, 13.26%, 9.18% and 41.61%, and the intercellular CO2 concentration increased by 4.18%, respectively. The plant height, leaf area index and net photosynthetic rate, stomatal conductance, transpiration rate and yield of cotton in Int-2 intercropping model decreased by 3.10%、5.39%、11.80%、9.25%、6.09% and 47.74%, and the intercellular CO2 concentration increased by 0.84%, respectively. There was no significant difference in SPAD value. The economic income from high to low was: Int-4>Int-2>1-row cotton. Compared to Int-2, the plant height, leaf area index and dry matter of Int-4 decreased markedly by 2.85%, 5.29% and 6.85%, respectively. The yield of Int-4 was significantly increased by 11.73% compared to Int-2. However, there were no significant difference in SPAD value and photosynthetic physiological characteristics in Int-4 and Int-2. So we concluded that appropriate increase of cotton planting density is beneficial to the high yield of cotton in the jujube-cotton intercropping systems, it is also conducive to increase economic income. |
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