Carbonic anhydrase, photosynthesis, and seed yield in mustard plants treated with phytohormones

Authors
Hayat, S Ahmad, A Mobin, M Fariduddin, Q Azam, ZM
Citation
S. Hayat et al., Carbonic anhydrase, photosynthesis, and seed yield in mustard plants treated with phytohormones, PHOTOSYNTHE, 39(1), 2001, pp. 111-114
Citations number
38
Categorie Soggetti
Plant Sciences
Journal title
PHOTOSYNTHETICA
ISSN journal
03003604 → ACNP
Volume
39
Issue
1
Year of publication
2001
Pages
111 - 114
Database
ISI
SICI code
0300-3604(2001)39:1<111:CAPASY>2.0.ZU;2-3
Abstract
The leaves of 30-d-old plants of Brassica juncea Czern & Coss cv. Varuna we re sprayed with 10(-6) M aqueous solutions of indole-3-yl-acetic acid (IAA) , gibberellic acid (GA(3)), kinetin (KIN), and abscisic acid (ABA) or 10(-8 ) M of 28-homobrassinolide (HBR). All the phytohormones, except ABA, improv ed the vegetative growth and seed yield at harvest, compared with those spr ayed with deionised water (control). HBR was most prominent in its effect, generating 32, 30, 36, 70, 25, and 29 % higher values for dry mass, chlorop hyll content, carbonic anhydrase (E.C. 4.2.1.1) activity, and net photosynt hetic rate in 60-d-old plants, pods per plant, and seed yield at harvest, o ver the control, respectively. The order of response to various hormones wa s HBR > GA(3) > IAA > KIN > control > ABA.