Comparative research of water deficit influence on indexes of water mode and parameters of induction of chlorophyll fluorescence of cotton leaves - I. G. Akhmedzhanov; S. V. Lukjanova; V. S. Agishev; S. M. Nabiev; M. M. Khotamov; A. K. Tonkikh; R. M. Usmanov (Plant Physiology and Genetics, 2016)