Effect of bulbils as planting materials on the tuber yield of yam (Dioscorea alata L.)
2003
Evangelio, F.A. | Quevedo, M.A. (Leyte State Univ., VisCA, Baybay, Leyte (Philippines). Philippine Root Crop Research and Training Center)
Yam production has been very costly because 20-50% ware tubers are used as planting materials. Hence, other sources is being explored such as bulbils or aerial tuber as planting materials. Tuber yield of yam using bulbils as planting materials especially those derived from fertilized with 60-60-60 were comparable to the yield of ware tuber-derived plants. The yield ranged from as low as 420 grams to as high as 1,117 grams per hill for the field trial and 306 to 956 for the pot experiment. On the other hand, tuber yield of the bulbil-derived plants from different sizes was low compared to plants derived from ware tuber seedsetts. Likewise, those bulbils derived from plant mulched with different rice residues has lower yields than plant derived from seedsetts taken from ware tubers in both field and pot experiments. The wide variation in yield was partly due to early disease infection and the variability of the size of bulbils
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