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Influence of Vertical Culture Model on Plant Growth and Yield of Tomato cv.'TAOYUAN AVRDC No.9' (Lcopersicon esculentum Mill.)
Five-week-old seedlings of tomato cv. Taoyuan AVRDC No. 9 were transplanted in peat moss filled plastic tanks in vertical culture. Result showed-that the two-layer culture in treatment A of arching down on top layer and upright growth on bottom layer had the highest yield,but the treatment B of both layers are arching down growth bad the lowest yield. The treatment A had the highest marketable yield, but not significantly different from the control of one layer traditional upright planting (treatment E). However, the treatment A and three layer arching down plant (treatment C) had significant higher in early yield production than the control. The fresh weight leaf and of stem per plant in control are 476 and 265, respectively, which are significantly higher than other treatments. The Control plant also had more flowers in first to the third as well as the single fruit weight, fruit length and fruit diameter among treatments. Plant in different layer of treatment A and treatment C shower differences in their vegetable characteristics. Plants on top layer could absorb better light than lower layers, therefore, stem length and node length of top layer is shorter than that on lower layers. Days to flower, flower number, and fruit set on top layer are higher than that of bottom layer. Soluble solid and acidity of top layer and bottom layer are different significantly. Acidity in fruit of top layer is higher than the bottom layer.
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