ISHS Acta Horticulturae 108: International Cashew Symposium
A COMPARATIVE STUDY OF DIFFERENT METHODS OF VEGETATIVE PROPAGATION OF CASHEW |
| Authors: | P.K. VALSALAKUMARI, K.K. VIDYADHARAN, V.K. DAMODARAN |
| Abstract:
Studies on the different methods of vegetative propagation of cashew, viz. air-layering, side grafting, veneer grafting, wedge grafting and patch budding were carried out during the period 1974 to 1978 at the Cashew Research Station, Vellanikkara. The best time for air-layering was from February to April during which period the shoot growth was also active. Treatment with IBA 250 ppm and NAA 500 ppm gave the maximum number of rooted layers. The percentage of rooting was positively correlated with shoot growth. Rooting was also found to be positively correlated with the maximum atmospheric temperature. Establishment of air-layers was better in ploythene bags with a mixture of soil, sand and compost as medium and which was supplied with Hewitts nutrient solution. The highest percentage of establishment was obtained in side grafting, veneer grafting and budding during the monsoon period; starting from May–June and ending with September-October. After October, the percentage of establishment was practically nil in the case of both side grafting and veneer grafting. But in the case of budding there was some establishment even during summer months, unlike in the case of the other methods. Wedge grafting under mist on eight month old seedings, gave a better success of 75 per cent in March compared to that of 70 per cent in February. | |
Download Adobe Acrobat Reader (free software to read PDF files) | |
