摘要
【研究目的】为棉花高产栽培提供科学、实用的株高动态模拟模型、诊断指标和预测方法。【方法】分别采用传统的日期-株高法和创新的叶龄-株高法、叶龄-相对株高法对两年6点棉花超高产试验中的株高资料进行统计分析。【结果】与传统方法相比,叶龄-相对株高法模拟精度高,适用范围广;用此法所制定的株高诊断指标,有广泛的适用性和灵活性;根据该方法提出的株高预测方法,简便、实用、可靠。【结论】叶龄-相对株高法不仅适用于对棉花株高的模拟、预测和诊断指标的制定,也可在其它作物上试用。
[OBJECTIVE]To development of a novel simulation model for dynamics of cotton height and diagnostic indexes and prediction method for cotton high yield production. [METHOD] Cotton plants height data collected from six sites of super-high-yield trails in two years were analyzed by date-plant height method, leaf number–plant height method and leaf number-relative plant height method, respectively. [RESULTS]The results showed that the novel model based on leaf number-relative plant height had a wide applicability and possessed a high precision. And diagnostic indexes based on the new method were applicable and flexible. The new plant height prediction method was simple, practical and reliable. [CONCLUSION] leaf number-relative plant height method was not only suitable for cotton plant height prediction and diagnostic indexes determining, also could be tested extensively to other crops.
出处
《中国农学通报》
CSCD
2008年第10期211-216,共6页
Chinese Agricultural Science Bulletin
基金
兵团农业科技攻关计划项目"棉花超高产综合配套技术的研究与示范"(2006GG21)
关键词
棉花
叶龄
相对株高
模拟模型
诊断指标
预测方法
upland cotton, leaf number, relative plant height, simulation model, diagnostic indexes, prediction method
