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Estimation of Leaf Area Index by Plant Canopy Analyzer in Rice  

Park H. K. (Honam Agricultural Research Institute, National Institute of Crop Science)
Choi W. Y. (Honam Agricultural Research Institute, National Institute of Crop Science)
Back N. H. (Honam Agricultural Research Institute, National Institute of Crop Science)
Kim S. S. (Honam Agricultural Research Institute, National Institute of Crop Science)
Kim B. K. (Honam Agricultural Research Institute, National Institute of Crop Science)
Kim K. K. (Honam Agricultural Research Institute, National Institute of Crop Science)
Publication Information
KOREAN JOURNAL OF CROP SCIENCE / v.49, no.6, 2004 , pp. 463-467 More about this Journal
Abstract
This study was carried out to estimate of leaf area index (LAI) rapidly using plant canopy analyzer, comparing with specific leaf area (SLA) and leaf area ratio (LAR) in rice from 2001 to 2002 at Honam Agricultural Research Institute in Iksan Korea. The relationship between LAI values taken by plant canopy analyzer and by leaf area meter showed high correlation at each growth stages of rice. LAIs obtained by plant canopy analyzer were highly correlated with that by leaf area meter which were the highest in Dongjinbyeo and the lowest in Hapcheon1. Specific leaf area (SLA) of all rice cultivars were tend to decrease remarkably with the progress of growth stage. It was found that the SLA of Dasanbyeo was the highest and that of Hapcheon1 was the lowest among rice cultivars tested. Leaf area ratios (LARs) was also decreased with the progress of growth stage.
Keywords
rice; leaf area index; nondestructive; leaf area ratio; specific leaf area;
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