International Journal of Chemical Studies
Vol. 5, Issue 4 (2017)
Heat unit requirement and phenological development of different grape varieties
Author(s): Saniya, Jyoti Kanwar, Dr. I S Naruka and Vinita Kumari Meena
Abstract: A field experiment was conducted to work out relationship between heat unit requirement and phenophases of 11 grape varieties during the years 2015-16 at horticulture farm, college of Horticulture, RVSKVV, Mandsaur (M.P.). The varieties flame seedless and Kishmish Charnyi ripen about 27 to 30 days earlier than the late ripening varieties viz., Kishmish Red and Crimson Seedless. For all the phenological stages, the grape varieties under study accumulated more heat units (mean value) during the year (1858.4 °days). Early maturing varieties consumed lesser heat units for fruit ripening, as compared to late ripening varieties. The average fruit yield was observed maximum in A18-3 (2.31 kg/vine) followed by Krishna Seedless and Kishmish Moldowsky (1.95 kg/vine) while the Kishmish Red, Black Seedless and Ruby Seedless were among the lowest fruit yielding varieties. A significant positive correlation was found between heat unit requirement for different phenological phases both at genotypic and phenotypic level.
Pages: 1201-1204 | 422 Views 9 Downloads
How to cite this article:
Saniya, Jyoti Kanwar, Dr. I S Naruka, Vinita Kumari Meena. Heat unit requirement and phenological development of different grape varieties. Int J Chem Stud 2017;5(4):1201-1204.