Effect of rootstock types on leaf nutrient composition in three commercial citrus scion cultivars of Pakistan under the ASLP Citrus Project

M.J. Jaskani, W. Shafqat, T. Tahir, T. Khurshid, H. Ur-Rahman, M. Saqib
More than 20 tree characteristics are influenced by rootstock. These include tree size, cropping efficiency and fruit quality attributes such as fruit size. In Pakistan, rough lemon rootstock is used in Punjab and sour orange rootstock is used in Khyber Pakhtunkhwa. The leaf nutrient composition of three scion cultivars ('Kinnow', 'Feutrell's Early' and 'Musambi') grafted on to eight rootstocks ('Cox' mandarin, 'Cleopatra' mandarin, 'Fraser' hybrid, sour orange, Poncirus trifoliata, 'Troyer' citrange, 'Benton' citrange, 'C-35' and 'Carrizo' citrange) were tested in 3-4-year-old trees. Complementary soil analyses were also carried out across different rootstock combinations. The chemistry of irrigation water from both canal and tube well (subsoil) water sources was analysed. The results from this study indicate that scion or rootstock significantly affect leaf nutrient composition in mandarin and orange trees. Rootstock significantly influenced macro- and micronutrients, especially Na, Cl, N and B, but not Fe and Cu. The concentrations of Zn and Mn were low in many of the scion and rootstock combinations.
Jaskani, M.J., Shafqat, W., Tahir, T., Khurshid, T., Ur-Rahman, H. and Saqib, M. (2016). Effect of rootstock types on leaf nutrient composition in three commercial citrus scion cultivars of Pakistan under the ASLP Citrus Project. Acta Hortic. 1128, 131-136
DOI: 10.17660/ActaHortic.2016.1128.18
https://doi.org/10.17660/ActaHortic.2016.1128.18
‘Kinnow’, mandarins, microelements, leaf mineral elements, scion-stock combinations
English

Acta Horticulturae