Punjab Agricultural University, Ludhiana
*Part of M. Sc. Thesis submitted by the first author at PAU, Ludhiana.
Investigations were conducted at Government Fruit Station, Attari (Amritsar) to study the effect of nine different rootstocks on vigour, yield and fruit quality of of Blood Red sweet orange. Jatti khatti proved to be the most invigorating root-stock and also produced maximum fruits per tree. The juice content, TSS and acidity were highest in fruits on trifoliate orange rootstock. TSS/Acid ratio was maximum in case of fruits produced on karna khatta and minimum on sour orange rootstock. The fruits raised on sour orange rootstock were found to contain the maximum amount of ascorbic acid.