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|Authors:||Lalaji, Palande Arun|
|Title:||VEGETATIVE PROPAGATION OF TAMARIND (Tamarindus indica L.) BY PATCH BUDDING AND SOFTWOOD GRAFTING|
|Publisher:||MAHATMA PHULE KRISHI VIDYAPEETH, RAHURI - 413 722, DIST.AHMEDNAGAR, MAHARASHTRA, INDIA|
|Abstract:||Tamarind is mainly propagated by seeds. Being heterozygous and highly cross-pollinated, nature of plants raised by seed are seldom true to type. To meet the greater demand of grafts and considering the limitations in propagation of tamarind by other vegetative methods, experiments were undertaken to explore the possibilities of patch budding and softwood grafting. The present studies were carried out in the Nursery Block of Department of Horticulture, M.P.K.V., Rahuri. Two separate experiments were laid out in FRBD with three replications, fatch budding as well as softwood grafting was tried at monthly interval commencing from 15th January and 15th December 2000 on similar age of rootstocks. In patch budding experiment, three different scion cultivars/ genotypes were budded and there were altogether 36 treatments. At the same time, in different set of experiment, softwood wedge grafting was done with varying lengths of scion sticks viz., 4 cm, 6 cm, 8 cm, 10 cm and thus there were 48 treatments. Just freshly defoliated (at the time of grafting) or naturally defoliated scion shoots of Red pulped genotype were used for grafting. Observations regarding days required for sprouting, length of sprouts, number of shoots and leaves per graft were recorded on 10 plants in each treatment. Percentage of success and subsequent survival was recorded after 60th and 150th days after budding grafting operation respectively. In the present study, it was observed that there was absolutely no success when budding was erformed between 15th December to 15th March. The 15th October budding initiated the earliest (19.16 days) sprouts. There was non-significant' difference between scion cultivars to initiate sprouting. Length of the sprouts differed under each month, treatment maximum length (43.05 cm/plant) was obtained from 15th April budding. Sprouts from 15th June budding in Sour genotype were significantly lengthier than those of other treatments. Among the three scion cultivars, significantly more number of leaves (26.95) and shoots (1.40) were recorded in Red pulped genotype. Initial success (59.16 %) and survival percentage of budded plants was also maximum (52.50 %) in Red genotype when budded on 15th May. In case of softwood wedge grafting, shorter scion stick length (cm) and 15th October grafting initiated the earliest sprouts (28.46 and 20.45 days respectively). All the months had different sprout lengths, significantly maximum from 15th April grafting (27.23 cm). There was absolutely no success when grafting was performed during 15th December. The use of 10 cm long scion sticks significantly increased the success (48.89 %) and survival (43.33 %) and also recorded vigorous growth of the grafts in respect of lengthier sprouts (34.20 cm), more number of shoots (3.70) and leaves (21.93) per graft. conclusions, it has pointed out that mid April to mid June and mid October is the best time for both softwood wedge grafting and patch budding under semi-arid conditions of Rahuri and the latter mode of propagation was found to be superior. The scion sticks with 8 to 10 cm length comprising of 3 to 4 buds have been found suitable for wedge grafting in tamarind.|
|Appears in Collections:||Thesis|
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