Abstract
Grafting is an asexual method of reproducing fruit plants. The selection of proper rootstock and suitable variety is imperative in order to assure scion and root stock compatibility. Therefore, the present experiment was carried out to evaluate the comparative study on compatibility and growth response of pear varieties on different rootstocks at nurseryof the Agricultural Research Institute (North), Mingora Swat, Pakistan during the year 2014. Six pear cultivars (four exotic such as William, Santa Maria, Hosuai and Shinsui and two indigenous such as Khan Tango and Shaghuri) were grafted on two rootstocks (Quince and Pyrus pashia L., locally known as tangai).Pear varieties, rootstocks and their interaction showed significant variation for all the studied attributes. Variety William showed higher graft take success %, plant height, number of shoots plant-1 and survival percentage. However, lower number of graft take success %, plant height, plant diameter, number of shoots plant-1 and survival percentage were observed on Quince rootstocks. It was concluded that pear variety William could be grafted on Quince rootstock for high graft take success and better growth response. Keywords: Grafting; Pear varieties; Rootstocks; Survival http://dx.doi.org/10.19045/bspab.2017.60026
Highlights
Institute (North), Mingora Swat, Pakistan during the year 2014
Lower number of graft take success %, plant height, plant diameter, number of shoots plant-1 and survival percentage were observed on Quince rootstocks
It was concluded that pear variety William could be grafted on Quince rootstock for high graft take success and better growth response
Summary
Plant height (cm) The significant results showed that maximum plant height (73.69 cm) was exhibited by pear varieties grafted on Quince, while the minimum plant height (60.00 cm) was recorded on rootstock. As concerned interaction more plant height was recorded in pear variety William, when grafted on Quince. Plant diameter (mm) The significant data regarding plant diameter indicated that maximum plant diameter (13.18 mm) was observed on Quince, whereas local (Taangai) showed minimum plant diameter (12.53 mm). As for as interaction is concerned, more plant diameter was recorded in pear variety Khan Tango grafted on local (Taangai) of pear. The effect of rootstock on plant diameter was observed and Quince was found to have maximum plant diameter These results are in conformity with the findings of [15]. The scion growth has been observed to be influenced by the graft height on the stem [17] and the same pattern in the girth of scion and rootstock was noted in apple cultivars [18]
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