不同灌水量对新疆高产棉花冠层结构映像特征及产量影响的研究  

Study on Cotton Canopy Structure Image Factor and Yield in High-yield Cotton of Xinjiang at Different Irrigation

作　　者：张伟[1] 吕新[1] 朱芸[1] 曹连莆[1] 

机构地区：[1]新疆生产建设兵团绿洲生态农业重点实验室

出　　处：《华北农学报》2005年第5期105-110,共6页Acta Agriculturae Boreali-Sinica

基　　金：国家自然科学基金资助项目(30160040)

摘　　要：讨论了北疆棉区推广棉种新陆早12号与新陆早13号在不同灌水量条件下冠层结构特征的差异,得出新陆早12号对限量滴灌反应不敏感,而新陆早13号对限量滴灌反应较敏感。因此在限量滴灌条件下选择新陆早12号、适量滴灌条件下选择新陆早13号栽培种植较为适宜。由此得出了不同品种对灌水量的反应表现及理想群体冠层结构的合理指标,为增加棉花产量和提高水分利用效率提供了理论依据。This paper mainly discussed the differences of cotton canopy structural characteristics in different irrigation condition of the extend breed Xinluzao 12 and Xinluzao 13 in North Xinjiang cotton growing region,then discovered that Xinluzao 12 is more sensible to limited drip irrigation. By the comparison between the two varieties, Xinluzao 13 is more sensible to adaptive irrigation and can acquiring higher yield. Thus Xinluzao 13 is better at adaptive irrigation condition and Xinluzao 12 is better at limited irrigation condition. Then acquired the response of varieties toward different irrigation and the ideal reasonable index of cotton canopy structure, and come to theoretical ground of increasing cotton production and improving availability of water. Material and methods： The experiment was taken during 2003 - 2004, testing breeds were Xinluzao 12 and Xinluzao 13. Testing time include the whole period of cotton duration. Taking CI-110 Digital Plant Canopy Structure Imager to test canopy structure index, acquire some indexes, such as LAI, MFIA, TC, T, K, LD, etc. Results and analysis ： LAI becomes bigger and MFIA becomes smaller at high irrigation. The MFIAmin is showed during the middle of August. The TCmin is in full boll, and Tmin is in full boll. Reasonable K in cotton field is slowly increase from upper to under layer.

关 键 词：不同灌水量 高产棉花 冠层结构 映像特征 

分 类 号：S562[农业科学—作物学]