Effect of time of softwood grafting and source of scion on biochemical parameters and final survival of guava grafts

The present investigation was carried out at Propagation Unit, Department of Horticulture, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola (MS), India during 2014–15. Three different source of scion from guava varieties, L-49, Lalit and Shweta were grafted at fortnight interval from January to February. Biochemical parameters viz., total chlorophyll, chlorophyll a and b, leaf carotenoid content, leaf ascorbic acid and phenol content were studied. The maximum total chlorophyll and chlorophyll a and b was obtained from T3S3 (1^st fortnight of February + Shweta). Leaf carotenoid content and ascorbic acid found maximum from T4S3 (2^nd fortnight of February + Shweta) and T2S3 (2^nd fortnight of January + Shweta) respectively. Treatment combination T1S3 (1^st fortnight of January + Shweta) and T4S3 (2^nd fortnight of February + Shweta) shows the maximum final survival of grafts. The result of present investigation illustrated that there was significant effect of time of softwood grafting and source of scion on biochemical parameters and final survival of guava grafts.