Characteristics of the growth and development of Plau-Noi trees(Croton sublyratus Kurz) grafted onto the rootstock of Plau-Yai(C.oblongifolius Roxb.).

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In Plau-Noi plantations where root rot disease could not be eradicated, Plau-Yai, a closely related species of Plau-Noi, showed a high resistance to the disease. We succeeded in grafting Plau-Noi, Croton sublyratus KURZ trees used as scion onto the rootstock of Plau-Yai, C. oblongifolius ROXB trees. The characteristics of the Plau-Noi trees with Plau-Yai roots were as follows: 1. The stock of Plau-Yai did not affect the content of plaunotol in the leaves of the grafted Plau-Noi trees. 2. The stock of Plau-Yai promoted the vegetative growth of the grafted Plau-Noi trees. 3. The stock of Plau-Yai was useful in controlling the root rot disease of the grafted Plau-Noi trees.
日本熱帯農業学会の論文