中文摘要：

【目的】研究不同增氧方式对棉花生长发育的机理。【方法】分析不同增氧方式下（CK,CO和PO分别表示常规滴灌、化学增氧和物理增氧）棉花光合特性及产量变化。【结果】PO、CO处理下棉花的净光合速率、气孔导度、胞间CO2浓度和蒸腾速率分别较对照增加了35.42%和31.60%、172.19%和155.61%、21.27%和16.86%、49.54%和47.52%,棉花的Pn积分值排序依次为PO（93.17）〉CO（87.03）〉CK（56.09）。CO、PO处理下的根鲜重、根干重分别较CK增加了20.7%和40.76%、9.5%和37.7%,茎鲜重、茎干重、叶鲜重、叶干重、蕾鲜重、蕾干重分别较CK增加了37.9%和90.1%、30.4%和96.3%、50.3%和103.1%、58.8%和102.9%、-38.8%和92.9%、29.5%和106.9%。CO和PO处理下的棉花单株结铃数较CK分别显著增加了29.5%和53.3%,棉花单铃的重量、纤维重、棉籽重及衣分分别显著增加了19.3%和26.7%、13.4%和22.0%、23.0%和29.8%及-4.5%和-3.3%,单产分别增加了54.0%和93.1%。【结论】物理增氧滴灌有利于安宁渠棉花进行光合作用以及产量增加,化学增氧有利于棉花地上、地下生物量的积累。

英文摘要：

【 Objective】 To research the mechanism of cotton growth and development with different aera-tion methods.【 Method】The effects of different aeration methods on photosynthetic characteristics and yield of cotton were analyzed. （CK, CO and Po represent conventional drip irrigation, chemical aeration and physical aeration, respectively.）【 Result】 The results showed that the net photosynthetic rate, stomatal conductance, intercellular C02 concentration and transpiration rate of cotton increased by 35. 4 2 % , 31.6 0 % , 172. 19% and 155. 61% , 21.27% , 16. 86% , 49. 54% and 47.5 2 % , respectively under PO and CO treatments. The order of PN integral value of cotton was PO （93. 17） 〉 CO （87.03） 〉 CK （56.09）. The root fresh weight and root dry weight under CO and PO treatments increased by 20.1 % , 40. 7 6 % , 9. 5 % and 37.1 % , respec-tively, compared with CK. Stem fresh weight, stem dry weight, leaf fresh weight, leaf dry weight, bud fresh weight and bud dry weight were increased by 37.9% , 90. 1 % 30. 4 % , 96. 3 % , 50. 3 % and 103. 1 % com-pared with CK under CO treatment, 58.8% , 102.9% , -38.8% , 92.9% , 29.5% and, 106.9% , respec-tively compared with CK under PO treatment. The number of cotton boll was significantly increased by 29. 5% and 53.3% respectively under CK and PO treatment compared with CK. Cotton boll weight, fiber weight, seed weight and lint percentage were increased by 19.3 % ,26.7 % , 13.4 % and 2 2 % , 2 3 % , 29. 8 % , -4.5% and -3. 3% , and the yield were increased by 5 4 % and 93. 1 % under CO and PO treatments.【 Conclusion 】In summary, physical oxygen enrichment and drip irrigation are beneficial for photosynthesisand yield increase of Gossypium spp. and chemical oxygen enrichment is beneficial to the accumulation of aboveground biomass and underground biomass in Anningqu.