Relationship of wheat grain yield with spectral indices |
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| Authors: | Som Pal Singh O P Bishnoi Ram Niwas Mahender Singh |
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| Institution: | 1. Regional Station PAU Bhatinda Department of Agricultural Meteorology, CCS Haryana Agricultural University, 125004, Hisar, India
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| Abstract: | An experiment was conducted during 1996–97 and 1997–98 to study spectral indices and their relationships with grain yield of wheat. Variations of ratio vegetation index (RVI), normalized differences vegetation index (NDVI). difference vegetation index (DVI), transformed vegetation index (TVI), perpendicular vegetation index (PVI) and greenness vegetation index (GVI) have been studied at anthesis stage under different moisture and nitrogen levels. Spectral indices were correlated with crop parameters and it was found that GVI was the best index for yield estimation (r = 0.91 ). |
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