Screening of mango (Mangifera indica) seedling germplasm for salt tolerance.
Nigam J. K., Misra K. K.
Author Affiliation: Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, Uttaranchal 263 145, India.
Indian Journal of Agricultural Sciences 74 : 138-141
Abstract : An experiment was conducted in a polyhouse to screen various mango germplasm seedlings for salt tolerance. Out of 64 germplasms, 27 were screened during 1999-2000. Salt treatment decreased the mean seedling height and leaves of mango germplasm. Cultivar Bhurdas showed the minimum reduction in seedling height compared with the control, followed by Hybrid 15/1. Hybrid 15/1 produced the highest number of leaves per seedling and the lowest leaf reduction over the control. Salt concentration did not significantly affect the branch number per seedling. Leaf N content was highest in cultivar Dudhia Langra, and lowest in cultivar Himsagar. Salt treatment decreased the leaf P content. The leaf P content was highest in cultivar Krutha Kolumban which was at par with that of cultivars Dudhia Langra, Kala Hapus and Alif. The leaf P content was lowest in cultivar Gulab Khas. Leaf K content was highest in Hybrid 15/1, and lowest in cultivar Bhurdas. Salt treatment decreased the leaf Ca content. Leaf Ca was highest in Hybrid 15/1, and lowest in Bhurdas and Alif. Leaf Mg was highest in Himsagar and lowest in cultivar Mallika. Salt treatment affected the leaf Na content in various cultivars. Na accumulation was lowest in Kala Hapus and highest in Gulab Khas. Salt treatment recorded the lowest S accumulation in Krutha Kolumban leaves, and highest in leaves of cultivar Nariyal. Leaf Cl content was lowest in Dudhia Langra, and highest in Mallika.