Spectral response of rice crop and its relation to yield and yield attributes
作者:
N. K. PATEL,
T. P. SINGH,
BALDEV SAHAI,
M. S. PATEL,
期刊:
International Journal of Remote Sensing
(Taylor Available online 1985)
卷期:
Volume 6,
issue 5
页码: 657-664
ISSN:0143-1161
年代: 1985
DOI:10.1080/01431168508948488
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Ground-based radiometric measurements were conducted on six varieties of rice crop during an entire growth cycle using a hand-held seven-band radiometer. Concomitant measurements of some of the yield attributes were also made. Spectral data were also collected on a single variety grown under 12 different fertilizer treatments. Spectral data have been correlated with leaf area index, total wet biomass, total dry biomass, plant water content and final grain, straw and total yield. The results show similar temporal spectral responses of all six varieties and a strong correlation of agronomic parameters with spectral parameters derived from the near-infrared and red radiances. Red and near-infrared radiance ratio and normalized differences were found sensitive to the N fertilizer application but not to the P and K fertilizers. Linear correlations were observed between spectral parameters and final grain, straw and total yield
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