| 满本菊，刘吉利，贺锦红，蔡 明，杨亚亚，王志丹，闫承宏，杨 茜，吴 娜.燕麦马铃薯间作对燕麦光合特性及产量的影响[J].麦类作物学报,2021,(1):118 |
| 燕麦马铃薯间作对燕麦光合特性及产量的影响 |
| Effect of Oat-Potato Intercropping on Photosynthetic Characteristics and Yield of Oat |
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| DOI：10.7606/j.issn.1009-1041.2021.01.15 |
| 中文关键词: 间作 燕麦 马铃薯 光合特性 产量 灰色关联度分析 |
| 英文关键词:Intercropping Oats Potato Photosynthetic characteristics Production Grey correlationdegree analysis |
| 基金项目:宁夏自然科学基金项目(2019AAC03063)；国家自然科学基金项目(31660376)；宁夏大学研究生创新项目（GIP2020036） |
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| 中文摘要: |
| 为揭示马铃薯-燕麦间作体系中燕麦产量形成的光合机制，在宁夏南部山区，通过田间小区试验，以单作燕麦为对照，在马铃薯-燕麦间作行数比为2∶2（P2O2）、4∶2（P4O2）、4∶8（P4O8）模式下，用灰色关联度评价法对燕麦旗叶的蒸腾速率、气孔导度、净光合速率、水分利用效率及叶绿素含量5 个光合指标和籽粒产量进行了研究。结果表明，间作总体上提高了燕麦旗叶的蒸腾速率、气孔导度和叶绿素的含量；除成熟期外，间作降低了燕麦的水分利用率；马铃薯和燕麦间作处理的土地当量比均大于1，以P4O2处理最高，为 1.21，种间竞争最小，为-0.05，产量相对较高。通过灰色关联度分析，发现P4O2处理表现较优，在燕麦开花期至成熟期等权关联度和加权关联度位次均为1。所以，在马铃薯-燕麦间作体系中，合理减少燕麦行数和增加马铃薯的行数有利于提高间作系统的综合优势，在生产中建议推广种植的马铃薯燕麦间作行比是4∶2。 |
| 英文摘要: |
| In order to reveal the photosynthetic mechanism of oat yield formation in potato-oat intercropping system,a field plot experiment was conducted in the hilly area of Southern Ningxia. The row number ratio of potato-oat intercropping was set up as 2∶2(P2O2),4∶2(P4O2),4∶8(P4O8),and five photosynthetic indices(transpiration rate,stomatal conductance,net photosynthetic rate,water use efficiency and chlorophyll content)and yield of oats were studied by grey correlation evaluation method. The results showed that intercropping increased the transpiration rate,stomatal conductance and chlorophyll content of oats on the whole. Except for the maturity stage,intercropping reduced the water use efficiency of oats.The land equivalent ratio of different intercropping treatments was greater than 1.P4O2 performed the highest(1.21) land equivalent ratio,but the lowest(-0.05) interspecific competition and relatively high yield.Through the grey correlation analysis,P4O2 performed better,with the greatest equal weight correlation degree and weighted correlation degree from the flowering stage to the maturity stage of oat. Therefore,in the potato-oat intercropping system,reasonable reduction of oat row number and increase of potato row number are conducive to improve the comprehensive advantages of intercropping system. It is suggested to popularize potato-oat intercropping with 4∶2 row number ration in production. |
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