温光驱动甜瓜壮苗指数模型研究  

Study of vigorous muskmelon seedling index model driven by temperature and radiation

作　　者：李建明[1] 邹志荣[1] 黄志[1] 

机构地区：[1]西北农林科技大学园艺学院,陕西杨凌712100

出　　处：《西北农林科技大学学报（自然科学版）》2008年第1期149-152,共4页Journal of Northwest A&F University(Natural Science Edition)

基　　金：国家"863"高新技术研究与发展计划项目(2001AA247012)

摘　　要：【目的】探讨甜瓜幼苗壮苗指数与环境温度、光辐射的关系。【方法】通过多次分期播种试验及回归分析,模拟建立甜瓜壮苗指数受有效积温、日温差积累及光辐射积累驱动的JohnsoSchumacher数学回归动态模型,同时对模型参数进行了估算,对壮苗指数变化过程进行了分析。【结果】所建立的模型能较为真实、客观地反映了实际壮苗指数与环境的关系。【结论】该模型可应用于环境条件与壮苗指数关系的分析及甜瓜育苗的生产管理。[Objective] The aim of this study was to probe into the relationship between vigorous muskmelon seedling index and environmental temperature and radiation. [Method] 5 times experiments had been conducted under greenhouse at different sowing dates. The vigorous muskmelon seedling index model was established in regress and was a JohnsoSchumacher function,whose model was driven by efficient temperature accumulation, and accumulation of daily temperature difference, and radiation accumulation. At same time, parameters of the model were estimated and change of vigorous seedling index were analyzed. [Result] It has been validated that the model is able to simulate real vigorous seedling index change truly and objectively. [Conclusion] The model can be used to analyze the relationship between vigorous seedling index and environmental temperature and radiation, and can be used in management of seedbed.

关 键 词：甜瓜 温度 光辐射 壮苗指数 模型建立 

分 类 号：S652.905[农业科学—果树学]