植被指数与水稻长势及产量结构要素关系的研究

THE RELATIONSHIP BETWEEN VEGETATION INDEX AND RICE GROWTH AND RICE YIELD COMPONENTS

本文介绍水稻产量与其反射波谱数据的相关性试验结果，研究表明，水稻齐穗期以前，植被指数ＲＶＩ与水稻的生长状况（叶面积指数及干物重）间相关系数很高，它们之间有较好的对应关系；齐穗期以，ＲＶＩ与水稻于物产量之间的相关性也很显著；同时还发现垂直植被指数ＰＶＩ与水稻产量结构各要素（每亩穗数，每穗实粒数，千粒重）以及理论产量之间也具有较好的相关性。

This paper introduces the reletionship between rice production and paddy field spectrum data, it indiCates that:Before rice full-head emergence, the correlation coefficient between ratio vegetation index(RVI)and rice growth (Leafarea index or dry biomass) is extremely high, and a good numerical measurement relation exists between them.After this stage, the correlation coefficient between RVI and dry biomass is remarkable.The correlation coefficient between PVI (standardded perpendicular vegrtation index )and rice yield components (ear numbers per Mu, full grainumbers per ear and the weights of one thousand grains) as well as theoretical rice yield are extremely high. Between them there is a good numerical measurement relation.