Comparison and Standardization among Chlorophyll Meters in their Readings on Rice Leaves

Jianliang Huang; Shaobing Peng

doi:10.1626/pps.7.97

( Short Report )

Comparison and Standardization among Chlorophyll Meters in their Readings on Rice Leaves

Jianliang Huang, Shaobing Peng

著者情報

キーワード: Chlorophyll meter, Leaf nitrogen content, Nitrogen management, Rice leaves, SPAD, Standardization

ジャーナルフリー

2004 年 7 巻 1 号 p. 97-100

DOI https://doi.org/10.1626/pps.7.97

詳細

抄録

Six chlorophyll meters (SPAD) were compared to determine the magnitude of differences in SPAD readings on rice leaves. Correlations among the six SPAD meters were statistically significant (P<0.01) with correlation coefficients (r) ranging from 0.971 to 0.990. However, the differences in SPAD readings were statistically significant among the six meters (P<0.05) and the difference between two meters was as large as 2.7 units. Such magnitudes of discrepancy should be considered when different SPAD meters are used in the same study.

責任著者(Corresponding author)

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