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Direct linkNakanishi, Fumi; Nakazawa, Masami; Katayama, Nobuyasu – Journal of Biological Education, 2005
Fully opened leaves of potted plants of "Oxalis corymbosa" DC. closed completely by folding their leaflets downward after being kept in the dark for two hours. The folded leaflets, then moved upward gradually after exposure to light. We developed a simple method to measure the leaf movement. A paper protractor folded every 10[degrees] was devised…
Descriptors: Biology, Light, Plants (Botany), Research Methodology
