Effect of Forchlorfenuron and N-acetyl Thiazolidine 4-carboxylic Acid on Chemical Parameter of Apricot (Prunus armeniaca L.) cv. New Castle
Debashish Hota *
Department of Fruit Science, Indira Gandhi Krishi Vishwavidyalaya (IGKV), Raipur, India.
D. P. Sharma
Department of Fruit Science, Indira Gandhi Krishi Vishwavidyalaya (IGKV), Raipur, India.
Tanushree Sahoo
Division of Fruits and Horticultural Technology, ICAR-IARI, New Delhi, India.
*Author to whom correspondence should be addressed.
Abstract
Bridging scientific and technological gaps needs utmost focus if India is to catch up with productivity and orchard longevity of apricot. Bio-regulators are being used by the growers to increase the yield by improving the yield attribute parameters. Keeping the objective to increase the yield, in the recent studies; twenty-six-year-old apricot cv. New Castle trees were subjected to 11 treatments viz. Forchlorfenuron (CPPU) at 5 and 10 ppm and N-acetyl thiazolidine 4-carboxylic acid (NATCA) at 50 and 100 ppm and their combinations were applied at pink bud and petal fall stage during the year 2015 and 2016. Out of the two time of spray the petal fall stage was found to be superior in both the years. Foliar spray of NATCA at 100 ppm at pink bud stage decreased titratable acidity and increased the total sugars, reducing sugars and non-reducing sugars content of fruit. Keeping all the observations in consideration NATCA 100 ppm at the pink bud stage was found to be the best among all the treatments.
Keywords: Forchlorfenuron (CPPU), N-acetyl thiazolidine 4-carboxylic acid (NATCA), foliar spray, petal fall stage, pink bud stage.