Potential of sprout cutting on the growth - yield and multiplication rate of potato [Solanum tuberosum L.]
1999
Hossain, M.J. (Tuber Crops Research Centre, Gazipur (Bangladesh)) | Vecchio, V. (Florence Univ. (Italy). Dipartimento di Scienze Agronomiche e Gestione del Territorio Agroforestale)
Sprout cutting is one of the most important rapid multiplication methods, which consists of isolating sprouts into single buds to be planted in the field for increasing tuber numbers. Sprouts of potato tubers can effectively be used for propagation of potato, which is yet to be standardised. The present research describes the potential use of sprout cutting with respect to growth parameters, yield attributes and multiplication rate. Sprouts 4-5 cm long of four standard potato cultivar, Cardinal, Diamant, Multa and Patrones, were cut into single buds and planted in sandbeds for rooting. Seven days later the rooted cuttings were transplanted at 30 cm x 15 cm spacing in a nethouse, following a two-factor completely randomised block design for tuber production. The crops were raised following cropping practices recommended by the Tuber Crops Research Centre. The crops were harvested 90 days after planting. Each tuber averaged 25.3 sprout cuttings, which on subsequent planting in the soil developed into single stem plants with luxuriant vegetative growth. Each plant produced about 4 tubers, weighing up to 81.2 g, with a mean tuber weight of 21.4 g. The cv. Cardinal significantly outyielded the others. The rate of tuber multiplication for the sprout cutting method was 1:107, as compared to 1:10 in the conventional method. Sprout cutting-derived plants produced tubers weighing from 21.1-24.9 g, which have less commercial value but are suitable as seeds. A multiplication rate of 1:107 can be achieved using the sprout cutting method
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