- Turkish Journal of Biology
- Vol: 29 Issue: 4
- Exogenous Application of Gibberellic Acid Counteracts the Ill Effect of Sodium Chloride in Mustard
Exogenous Application of Gibberellic Acid Counteracts the Ill Effect of Sodium Chloride in Mustard
Authors : Shaheena Afroz, Firoz Mohammad, Shamsul Hayat, Manzer H. Siddiqui
Pages : 233-236
View : 12 | Download : 7
Publication Date : 9999-12-31
Article Type : Makaleler
Abstract :The response of mustard (Brassica juncea (L.) Czern & Coss cv. Varuna) to presowing seed treatment with sodium chloride (NaCl) was investigated. The plants raised from treated seeds were sprayed with water or 10-6 M GA3 at the 30- day stage. The seeds imbibed in 1 or 10 mM of NaCl resulted in a decrease in dry mass, leaf chlorophyll content, carbonic anhydrase activity (E.C. 4.2.1.1), nitrate reductase activity (E.C. 1.6.6.1) and net photosynthetic rate at the 60-day stage, and pod number and seed yield at harvest. However, spray application of GA3 neutralized the ill effect of soaking treatment in NaCl (1 or 10 mM).Keywords : Brassica juncea, carbonic anhydrase, chlorophyll, nitrate reductase, salinity, seed yield Abbreviations: CA-carbonic anhydrase, DAS-days after sowing, DH- dry mass, NR-nitrate reductase, PN-net photosynthetic rate