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KMID : 1098420170250030160
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Korean Journal of Medicinal Crop Science
2017 Volume.25 No. 3 p.160 ~ p.164
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Effect of Root Pruning on Growth and Fruit Setting in Zizyphus jujuba var. inermis (Bunge) Rehder
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Lee Joung-Won
Kim Chung-Woo
Oh Ha-Kyung
Lee Kyeong-Hee
Lee Seong-Kyun
Kim Sang-Hee
Hong Eui-Yon
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Abstract
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Background: This study were performed to determine the effect of root pruning of Zizyphus jujuba var. inermis (Bunge) Rehder. Root cutting inhibit vegetative growth and promote reproductive growth as temporarily reducing growth, net assimilation, water potential of leaf and cytokinin level.
Methods and Results: The root pruning was treated of the root cutting widths 50, and 80 ㎝ and the root cutting depths 10, and 20 cm. The amount of root pruning and the number of suckers were the highest in the root-pruning treatment at a width of 50 cm and a depth of 20 cm. The blooming time was from June 18 to 20, and no difference was observed in the blooming time among the root-pruning treatments. The number of flowers was rather higher in the root-pruning treatment at a width of 50 cm and a depth of 20 cm and at a width of 80 cm and a depth of 20 cm. The percentage of fruit setting was higher in the plants whose roots were pruned at a depth of 20 cm than in the untreated plants. The fruit size, fruit weight, and sugar content showed no difference among the root-pruning treatments.
Conclusions: The results showed that percentage of fruit setting increased with root pruning, while no difference was observed in the growth and fruit quality of plants.
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KEYWORD
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Zizyphus jujuba var. inermis (Bunge) Rehder, Blooming Time, Fruit Size, Fruit Weight, Number of Fruit Setting
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