PERFORMANCE OF ‘DAISY’ MANDARIN ON THREE DIFFERENT ROOTSTOCKS UNDER SUB TROPICS OF NORTH-WESTERN INDIAMandeep Singh Gill, J.S. Brar, P.P.S. Gill and Savreet KhehraAbstract The effect of three rootstocks viz. Carrizo citrange [ Poncirus trifoliate (L.) Raf. x C. sinensis ], Volkameriana (Citrus jambhiri Lush. x Citrus volkameriana), rough lemon (C. jambhiri Lush.) on vegetative growth , fruit yield and leaf nutritional composition was studied at Regional Research Station, Punjab Agricultural University, Bathinda (India). The vegetative growth in terms of rootstock and scion girth was maximum in Volkameriana. The scion showed maximum compatibility with rough lemon with respect to the smooth graft union having 0.87 scion/ stock ratio. Volkameriana proved to be vigorous rootstock in terms of maximum plant height and canopy volume. Fruit yield per plant was recorded highest on Volkameriana rootstock although Carrizo rootstock produced larger fruits during both the years. Fruit quality was better on Carrizo rootstock in terms of high total soluble solids content, thin rind and less granulation. Volakameriana rootstock resulted in higher leaf N content whereas other macro and micronutrients were found higher when budded on Carrizo rootstock.
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