The effect of water stress on the nitrate reductase activity of Durio zibethinus Murr. (Clone D24 and D99) saplings - Kusnan, Misri; Abdul Ghafar, Nurul Shaziera; Ahmad, Yusof; Omar, Hishamuddin; Hashim, Hidir (Faculty of Science, Universiti Putra Malaysia, 2009)