Interactive Effect of 28-homobrassinolide and Salinity on Morpho-physiological Attributes of 60 Day Old Brassica Juncea Plants

Among various environmental stresses, salt stress is an extensively damaging to major crops all over the world. A set of experiments was conducted to examine the role of 28-homobrassinolide on growth and photosynthetic pigments of salt tolerant Brassica juncea cultivar RLC-1 under control or saline conditions i.e., 0 or 180 mM of NaCl. Surface sterilized seeds of B. juncea were given pre-sowing soaking treatment of 0, 10 -6 , 10 -9 , 10 -12 M 28homobrassinolide (28-homoBL) for 8 hours then seeds were sown in pots and were irrigated with 1 liter solution of 180 mM NaCl and control plants were irrigated with distilled water and studied the effect after 60 day after sowing (DAS). Plant growth decreased on imposition of salt stress. Salinity had significant effect on chlorophyll contents and carotenoids content.