107 Plant Physiology- ICAR JRF/SRF 2024 MCQ (Single Correct) +4 −1 ‘Who proposed the theory of two-phase flowering? A Chailakhyan Correct Incorrect B Lobimenka and Scheglova Correct Incorrect C KC. Knott Correct Incorrect D , LW. Wardlaw Correct Incorrect Check Answer EXPLANATION Photoperiodism, Phytochromes and Floral Induction (Florigen) Two-Phase Flowering Theory: Formulated by Russian physiologist M. Kh. Chailakhyan (1958).Postulate: Florigen consists of two complementary physiological components acting in two sequential stages: Gibberellins: Required for stem elongation, bolting, and flower stalk growth. Anthesins: Hypothetical flowering factors required for flower bud initiation and floral organogenesis. Correct option: (1) Chailakhyan Explanation not matching this question? क्या व्याख्या इस प्रश्न से मेल नहीं खा रही? Report Mismatch त्रुटि बताएं Prev Next