Arpita M Patel¹*, Patel CR² and Tanvi A Patel²

¹Department of Fruit Science, ASPEE College of Horticulture, Navsari Agricultural University, Navsari, Gujarat, India
²Associate Research Scientist (Horticulture), Agriculture Experimental Station, Navsari Agricultural University, Paria, Gujarat, India

*Corresponding Author: Arpita M Patel; Department of Fruit Science, ASPEE College of Horticulture, Navsari Agricultural University, Navsari, Gujarat, India.

Received: January 27, 2025; Published: February 10, 2025

Abstract

A study was undertaken to evaluate the effect of saline water and spray of 28-homobrassinolide on growth of polyembryonic mango (Mangifera indica L.) seedling during the years 2021-22 and 2022-23 at Agriculture Experimental Station, Navsari Agricultural University, Paria, (Gujarat). The experiment was laid out in Completely Randomized Design with factorial concept comprising of four salinity levels [S1 : Best available water (control), S2: 2 dS m-1, S3: 4 dS m-1, S4: 6 dS m-1] and three spray concentration of 28-homobrassinolide [H1: No spray, (control), H2 : 0.5 ppm and H3 : 1 ppm]. Saline water application and 28-homobrassinolide spray was started at 80 days after sowing up to 240 days. Treatment containing application of water having lowest salinity (best available water) resulted in significantly higher plant height, stem diameter, number of leaves, fresh and dry biomass Along with higher survival at 9 months after sowing during both years and in pooled analysis. Application of saline water having EC 6 dS/m adversely affected the growth of polyembryonic mango seedlings, reduced vigour, biomass and survival at 9 month of sowing. The spray concentrations of 28-homobrassinolide significantly affected the growth of polyembryonic mango seedlings at 9 month of sowing, maximum values for various growth parameters along with vigour, biomass and survival were noted in mango seedlings treated with spray of 1 ppm 28-homobrassinolide during both years and in pooled analysis. The interactions of salinity levels and 28-homobrassinolide spray significantly affect different growth parameters of mango seedlings. Maximum plant height, stem diameter, number of leaves fresh and dry biomass and survival at 9 months after sowing during both the years and in pooled analysis were recorded in treatment combination of best available water along with 1 ppm spray of 28-homobrassinolide. Therefore, it can be concluded that polyembryonic mango seedlings of selected genotype can be grown with saline water irrigation having salinity up to 4 dS/m along with 1 ppm 28-homobrassinolide spray for better growth, biomass and higher survival up to 9 months after sowing.

Keywords: Mango; Salinity; 28-Homobrassinolide; Polyembryonic

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Citation

Citation: Arpita M Patel.,et al. “Effect of Saline Water and Spray of 28-Homobrassinolide on Growth of Polyembryonic Mango (Mangifera indica L.) Seedling". Acta Scientific Agriculture 9.3 (2025): 11-26.

Copyright

Copyright: © 2025 Arpita M Patel.,et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.