Response of Kharif Onion (Allium cepa L.) for Growth and Yield to Different Doses of Sulphur, GA3 and NAA

Abstract

The present investigation entitled "Response of Kharif onion (Allium cepa L.) for growth and yield to different doses of Sulphur, GA 3 and NAA" was carried out during kharif 2016 -17 (first year) and 2017 -18 (second year) at the experimental field RVSKVV, Krishi Vigyan Kendra, Rajgarh (M.P.) with 27 treatment combinations of three levels of sulphur i.e. 0, 20 and 40 kgha -1 , three levels of Gibberellic acid viz., 0, 50 and 100 ppm and three levels of NAA i.e. 0, 50 and 100 ppm. Results obtained for 2016-17 and 2017-18 and in pooled basis revealed that the application of 40 kg S ha -1 was recorded significantly maximum plant height, number of leaves per plant, bulb/ green top ratio and neck diameter and yield attributes such as fresh weight of bulb, polar and equatorial diameter of bulb and bulb yield per hectare in both the year and in pooled. Foliar application of GA 3 @ 50ppm (G 1 ) and NAA @ 100 PPM (N 2 ) at seedling stage and after 30 days after transplanting also exhibited significantly maximum growth and yield. It was concluded that various growth and yield parameters were improved with the application of S 40 Kg/ha+ GA 3 50 ppm + NAA100ppm for higher yield and quality of Kharif Onion.

Assessment of Performance of Foliar Application of GA3 and NAA on Growth and Yield Attributes of Onion (Allium cepa. L) cv. Nashik Red (N-53)

“…In the case of numbers of leaves at 60DAT, the maximum (9.26) number of leaves was recorded at T3 and at 90 DAT the maximum (13.16) number of leaves was recorded in T3. While the least (7.94) number of leaves was observed from control (T0) 7.94 cm ( The results of the present experiment show congruence with the observations of Saleh et al [12], Singh et al [13] Singh [14], Gupta et al [15], Bose et al [10], and Meena et al [16]. The enhancement of cell division and elongation in the meristematic zone may be the cause of the rise in onion growth parameters resulting from foliar application of NAA, such as plant height and leaves count per plant.…”