Grafting Success of Khasi Mandarin on Different Citrus Rootstocks under Nagaland Condition

Rootstock selection plays a key role in influencing graft success tree vigor, yield quality, and resilience to biotic and abiotic stresses. A study was conducted at Nagaland University in 2021-2023, in which eight citrus rootstocks (Indian wild orange, Tasi orange, Rangpur lime, Khasi papeda, Citrange, Karna Khatta, Kachai lemon, and Rough lemon) were systematically evaluated for seed germination, seedling vigor, root development, grafting success, and overall performance under shade net conditions. Among the rootstocks, rough lemons showed the highest seed germination rate and exhibited superior seedling growth, including better seedling height, diameter, shoot and leaf number, and overall vigor. Grafting success with Khasi mandarin was the highest on rough lemon and Karna khatta rootstocks. However, Citrange performed poorly on most of the growth parameters studied. The results suggested that rough lemons and Karna khatta have potential as rootstocks for Khasi mandarin grafting, seedling vigor, and strong root systems. Further evaluation at the field level is essential to determine the compatibility of the scion-stock relationship and its impact on fruit quality and yield.