Plant Nutrition and Stress Physiology Laboratory, Department of Botany, University of Lucknow, Lucknow-226007, India
Online published on 20 February, 2014.
Two vegetable crops garlic (Allium sativum L. var. Yamuna safed) and onion (Allium cepa L. var. Nasik-53) were raised in sand culture under controlled conditions of green house to investigate the influence of sulfur supply (1.0, 4.0 and 8.0 meq S L−1) on growth and metabolism. Plant growth and dry matter was suppressed in 1.0 and 8.0 meq S L−1 supplied plants. Optimum growth and dry matter yield were observed in plants grown at 4.0 meq S L−1 and these were treated as control plant. Both tissue sulfur and cysteine concentration was decreased in sulfur deficient (1.0 meq SL−1) and increased in sulfur toxic (8.0 meq S L−1) plants. As compared to control, carbohydrates (sugars and starch) accumulated in leaves and were marginally decreased in bulbs of sulfur deficient and toxic plants.
Garlic, onion, tissue sulfur, cysteine, carbohydrates, leaves and bulbs
