TY - JA AU - Khanna Chopra,R. AU - Chaturverdi,G.S. AU - Sinha,S.K. AU - Aggarwal,P.K. TI - Effect of potassium on growth and nitrate reductase during water stress and recovery in maize [zea mays, water potential] SN - 0031-9317 U1 - 81-606952 PY - 1980/// KW - Flooding effects KW - Maize KW - AGROVOC KW - Potash fertilizers KW - Propagation materials other KW - Zea mays N1 - 5 ill., 5 tables; 16 ref. Summary (En); Peer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0031-9317 N2 - The effect of potassium (0, 50, 100 and 200 mg/pot) was studied on growth characteristics and nitrate reductase activity in maize (Zea mays) seedlings during water stress and subsequent recovery. In irrigated plants K('+) increased the rate of leaf area expansion, leading to increased leaf area per plant. Increased leaf area was associated with decreased chlorophyll content. Water stress (-15 bars) enhanced the stomatal resistance of leaves which was further accentuated by K('+) application. Nitrate reductase activity rose in irrigated plants 24 h after K('+) application. Subsequently, as water stress developed, K('+) helped to maintain higher NR activity T2 - Physiologia Plantarum ER -