欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
利用HSI颜色模型研究大田条件下不同施氮处理冬小麦群体数字图像的颜色特征,分析其与叶绿素含量、产量以及吸氮量之间的关系。结果表明：在孕穗至灌浆期前冬小麦群体的色调值H与叶片叶绿素含量（SPAD）存在显著的相关关系;从冬小麦群体色调值H的动态变化看,当生育前期监测到H由峰值开始下降时,可判断进入抽穗期,而生育后期H出现迅速下降时则表明冬小麦群体开始进入灌浆成熟期,数字图像的颜色特征能够反映冬小麦的生育进程;孕穗-开花期间H可以较好的反映作物产量,并建立了H值与冬小麦地上部生物量、籽粒产量之间的线性方程。
英文摘要：
In this paper,the digital image color characteristics of winter wheat for different nitrogen fertilization treatments under field conditions was investigated.The Hue values（H）in different growth-stages of winter wheat were calculated using the HSI model.The relationship between H values and its chlorophyll content（SPAD）and that between the yield of winter wheat and nitrogen absorption were analyzed.The results show that H values and the chlorophyll content of winter wheat in leaves（SPAD）unfold the significant correlativity during the booting to grain-filling stage;according to the population dynamics of the H value for winter wheat,the decline of the green peak H value indicate the beginning of the booting stage and the other rapidly decline of the H value in the latter growth of winter wheat show the beginning of the filling-maturity stage;and the H value measured in booting and flowering stage can reflect the yield of winter wheat and the regression equations between H value and total above-biomass yield and grain yield are established respectively.
同期刊论文项目
同项目期刊论文
期刊信息
位置：