Evaluation of the SPAD Value in Faba Bean (Vicia faba L.) Leaves in Relation to Different Fertilizer Applications
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概要
- 論文の詳細を見る
The correlations of the reading of a portable chlorophyll meter (SPAD-502) with the chlorophyll and N contents of leaves of two faba bean (Vicia faba L.) cultivars, Japanese (Ryousai-issun) and Egyptian (Cairo 241), were examined. The SPAD readings positively correlated (p<0.01) with the chlorophyll contents and the r^2 values were 0.99 and 1.00 for Ryousai-issun and Cairo 241, respectively. A close linear relationship (p<0.001) was observed between SPAD reading and total leaf N content at the pod development stage of faba bean plants with r^2=0.88 and 0.99 for Ryousai-issun and Cairo 241, respectively. The SPAD reading was the highest in the 2^<nd> to 4^<th> leaves counted from the top (the youngest fully expanded leaves). The changes in leaf chlorophyll content of both cultivars from 3 weeks after transplanting to the ripening stage showed an incomplete "M" type curve. SPAD readings were significantly higher in Ryousai-issun than in Cairo 241 throughout the growth season. Organic fertilizers application improved faba bean plant growth. These results suggest that the SPAD-502 chlorophyll meter can be used to measure chlorophyll and nitrogen contents of faba bean leaves for quick screening faba bean genotypes.
- 日本作物学会の論文
著者
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Horiuchi Takatsugu
The United Graduate School of Agricultural Science, Gifu University
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Oba Shinya
United Graduate School Of Agricultural Science Gifu University
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Abdelhamid Magdi
United Graduate School Of Agricultural Science Gifu University
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Horiuchi Takatsugu
United Graduate School Of Agricultural Science Gifu University
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Oba Shinya
The United Graduate School of Agricultural Science, Gifu University
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