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Table 3 Coefficients of correlation between grain yield (GY) and (1) NDVI extracted from multispectral images taken with the UAV-platform (NDVI-UAP) and (2) leaf senescence index

From: Unmanned aerial platform-based multi-spectral imaging for field phenotyping of maize

 

NDVI-UAP

Crop senescence index

All N application rates

0.63***

−0.74***

0 and 10 kg ha−1 AN

0.72***

−0.74***

80 and 160 kg ha−1 AN

NS

−0.44**

  1. NS: P > 0.05, * P ≤ 0.05, ** P ≤ 0.01, *** P ≤ 0.001.
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Plant Methods

ISSN: 1746-4811