Regional Fruit Research Station, Punjab Agricultural University, Abohar, 152 116
*Present address: Asstt. Prof. Hort., Deptt. of Horticulture, PAU, Ludhiana 141 004.
The studies on fruit quality at maturity and ripening of Kinnow mandarin on different rootstocks were conducted at the Regional Fruit Research Station, Abohar during the year 1979–80. The growth of the fruit in terms of length, diameter and weight increased rapidly upto 30th January on Jatti Khatti and Kharna Khatta and 20th January on Troyer and Carrizo. Thereafter, a slight decrease in fruit growth was observed. A little increase in peel weight with a corresponding decrease in rag per cent with the advancement of maturity was observed on all the rootstocks. There was no particular trend in vitamin C content. The highest scores with palatability rating were given to the fruits with Brix-acid ratio 12: 1 to 13: 1. The bese harvesting time of Kinnow mandarin on Jatti Khatti and Kharna Khatta fall between 20th January to 9th February and on Troyer and Carrizo between 20th January to 30th January.
