Agricultural Science Digest
Chief EditorArvind kumar
Print ISSN 0253-150X
Online ISSN 0976-0547
NAAS Rating 5.52
SJR 0.156
Chief EditorArvind kumar
Print ISSN 0253-150X
Online ISSN 0976-0547
NAAS Rating 5.52
SJR 0.156
Repercussion of photosynthetic variables and related enzymes under influence of sodium dihydrogen orthophosphate and sodium sulphate with two modes of gibberellic acid application
Submitted28-05-2014|
Accepted13-01-2017|
First Online 22-03-2017|
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.
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