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- Title
Repercussion of photosynthetic variables and related enzymes under influence of sodium dihydrogen orthophosphate and sodium sulphate with two modes of gibberellic acid application.
- Authors
Mazid, Mohammad; Naz, Farha
- Abstract
An experiment was carried out to investigate whether the application of gibberellic acid (GA) along with NaH2PO4 and/or Na2SO4 could ameliorate photosynthetic variables and enzymes in chickpea cultivar DCP 92-3 without compromising the nitrogen fixing activity. Before, sowing the seeds of chickpea were soaked for 8 h in 10-6MGA. 60 and 70 days after sowing (DAS), the plants were sprayed with 10-6MGA along with 2 kg P and/or S/ha in two equal splits. Performance of the crop was assessed in terms of chlorophyll content (Chl), net photosynthetic rate (PN), stomatal conductance (gs), carbonic anhydrase activity (CA) and one most significant N-fixing enzyme, NR. Treatment (16) SGA+FGAPS proved best, it enhanced Chl content by 46.16% and 48.84% PN by 64.24 and 65.37%, NR by 22.37% and 22.46% respectively at 90 and 100 DAS. CA at 100 DAS only and gs at both stages of sampling found non-significant. Moreover, CA enhanced by 64.56% at 90 DAS also.
- Subjects
PHOTOSYNTHESIS; CHICKPEA varieties; PLANT enzymes; ORTHOPHOSPHATES; SODIUM sulfate; PHYSIOLOGICAL effects of gibberellic acid
- Publication
Agricultural Science Digest, 2017, Vol 37, Issue 1, p51
- ISSN
0253-150X
- Publication type
Article
- DOI
10.18805/asd.v0iOF.7324