EXOGENOUS APPLICATION OF ABSCISIC ACID MAY IMPROVE THE GROWTH AND YIELD OF SUNFLOWER HYBRIDS UNDER DROUGHT.Published in:Pakistan Journal of Agricultural Sciences, 2014, v. 51, n. 1, p. 49By:Hussain, Safdar;Saleem, Muhammad Farrukh;Iqbal, Javaid;Ibrahim, M.;Atta, S.;Ahmed, T.;Rehmani, M. I. A.Publication type:Article