北疆高产棉田群体光合速率及与产量关系的研究  

Studies on the Relationship between Canopy Apparent Photosynthesis Rate and Yield in Cotton in North Xinjiang

作　　者：张旺锋[1,2] 勾玲[1,2] 李蒙春[1,2] 刘克贞 李正尚 李正河 蔡红梅 郭世明 

机构地区：[1]石河子大学新疆作物高产研究中心 [2]新疆兵团农六师新湖农场

出　　处：《棉花学报》1999年第4期185-190,共6页Cotton Science

基　　金：国家"九五"攻关项目

摘　　要：研究了北疆２２５０ｋｇ·ｈｍ－２高产条件下棉花群体光合速率的变化及与产量之间的关系。结果表明，２２５０ｋｇ·ｈｍ－２高产棉田群体光合速率在整个生育期的变化呈单峰型曲线，在盛花期以前稳定上升，至盛铃期达最大，值为４．０５ｇ·ｍ－２·ｈ－１，吐絮盛期尚保持较高水平。全生育期平均值为２．６３ｇ·ｍ－２·ｈ－１。群体光合速率的日变化也呈单峰曲线，在１ｄ内至北京时间１４∶００～１５∶００达最大值。与其它产量条件下棉花群体光合速率的变化结果进行统计分析，盛花结铃期和吐絮期群体光合速率与皮棉产量呈显著正相关。在生产上，加强棉田后期管理，保持较高的群体光合速率，有利于棉花高产。High yield cotton field (2250kg·hm -2 ) was selected to study the relationship between canopy apparent photosynthesis (ACP)rate and yield in North Xinjinag. The results indicated that the ACP rate of high-yield field showed a single-peak curve throughout the entire growth period. Maximum ACP value occurred around full boll stage. The changes of ACP at various times of a day showed a single-peak curve too ,the maximum ACP values occurred at 14∶00～15∶00.The ACP rate at full flower stage and boll opening stage was highly significantly correlated with the lint yield. Therefore, the enhancement of the ACP rate during the full boll stage and opening boll stage could lead to increase the lint yield.

关 键 词：新疆 棉花 高产栽培 光合速率 

分 类 号：S562.01[农业科学—作物学]