biologia plantarum

International journal on Plant Life established by Bohumil Němec in 1959

Biologia plantarum 48:61-65, 2004 | DOI: 10.1023/B:BIOP.0000024276.03834.8d

Interactive Effects of Thiourea and Phosphorus on Clusterbean Under Water Stress

U. Burman1,*, B.K. Garg1, S. Kathju1
1 Division of Soil-Water-Plant Relationship, Central Arid Zone Research Institute, Jodhpur, India

Effects of phosphorus and thiourea application (either alone or in combination) were studied on clusterbean (Cyamopsis tetragonoloba Taub.) plants subjected to water stress by withholding irrigation at pre- and post-flowering stages in pot culture trial. Water stress significantly decreased shoot water potential, relative water content of leaves, net photosynthetic rate, contents of total chlorophyll, starch and soluble proteins as well as nitrate reductase activity at both the growth stages. Application of phosphorus and thiourea or combined application increased most of these parameters. Results revealed synergistic effects of P and thiourea in enhancing net photosynthesis, leaf area, chlorophyll content and nitrogen metabolism leading to significant improvement in plant growth and seed yield under water stress condition.

Keywords: Cyamopsis tetragonoloba; nitrate reductase; photosynthetic rate; plant water status; yield
Subjects: amino acids; chlorophyll, thiourea, phosphorus; cluster bean, water stress, thiourea; Cyamopsis tetragonoloba; gas exchange, water stress, thiourea; growth analysis, plant development, biomass and yield enhancement; nitrate reductase; phosphorus, thiourea, interactive effects; protein, soluble, water stress, thiourea; relative water content, thiourea, phosphorus; synergistic effects, thiourea and phosphorus; thiourea and phosphorus, interactive effects; water potential, thiourea, phosphorus

Published: March 1, 2004  Show citation

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Burman, U., Garg, B.K., & Kathju, S. (2004). Interactive Effects of Thiourea and Phosphorus on Clusterbean Under Water Stress. Biologia plantarum, 48(1), 61-65. doi: 10.1023/B:BIOP.0000024276.03834.8d
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