Abstract:
Brown Mustard (Brassica juncea L.) is an edible-oil yielding crop that belongs to Brassicaceae family and is used for different commercial purposes. The species is valued highly because of its ability to store heavy metals like Lead (Pb), present in the polluted soil. Lead (Pb) toxicity imposes a number of morphological and biochemical changes in the plants being grown in Pb contaminated soils. The effect of foliar application of 2.5 mM EDTA on two different crop varieties of Brassica juncea L., (Faisal as V1 and Rohi as V2), were studied with and without the treatment of 0.5 mM Lead acetate [Pb(C2H3O2)2]. Plants were grown in Sand-pot medium and were treated with Hoagland solution each week for two months. Statistical analysis revealed that Pb stress caused a considerable decrease in the overall biomass (56.2%), shoot and root length (21%), yield attributes (20.16%), chlorophyll content (35.3%), Total soluble proteins (12.9%) and Calcium (61.7%) and Potassium (40.9%) content of the plants as compared to the control plants. However, foliar application of EDTA ameliorated the adverse effects of lead in both varieties. EDTA improved the morphological attributes (67%), yield (29%), photosynthetic pigments (80%). Positive variations in the antioxidant's activity, ROS and contents of total free Amino acid, Anthocyanin, Flavonoids and Ascorbic acid even under Pb stress were very much prominent. It was deduced that application of EDTA had significantly redeemed the adverse effects of Pb. V1 exhibited much tolerance against Pb toxicity as compared to V2.
Page(s):
0-0
DOI:
DOI not available
Published:
Journal: First International Conference on Revamped Scientific Outlook of 21st Century (Abstract Book), Volume: 0, Issue: 0, Year: 2022
Keywords:
Growth
,
Antioxidant activity
,
Biomass
,
Lead toxicity
,
EDTA
,
Brassica juncea L