WebJun 26, 2024 · Question. Which of the following statement is correct regarding ethylene? (a) It delayes senescence. (b) It decreases the respiration rate during fruit ripening. (c) It breaks seed and bud dormancy. (d) It inhibits flowering in mango. WebMar 26, 2024 · We can also break dormancy by the application of plant growth hormones. By giving exposure to warmth and moisture, we can break dormancy and allow the hard …
Auxin controls seed dormancy through stimulation of abscisic …
WebDec 13, 2024 · Breaks seed and bud dormancy Stimulates rapid elongation of petioles and internodes Promotes senescence and … WebAbscissic acid is a mildly acidic growth hormone which functions as a general growth inhibits by counteracting other hormones or the reactions mediated by them. ABA induced bud dormancy, seed dormancy, closure of stomata and stoppage of cambial activity. historia fasoli
Bud Dormancy - an overview ScienceDirect Topics
WebThe role of cytokinins in seed and bud dormancy has not been clearly defined. ... Various types of stimuli from the environment can induce bud dormancy as well as break dormancy including changes in temperature or day length [60]. Different kinds of PGRs can also affect bud dormancy including gibberellins, ethylene, and abscisic acid [61]. WebMay 4, 2024 · It is produced in mature leaves and roots and transported through the vascular tissue. Figure 16.4. 1: Chemical structure of the plant hormone abscisic acid (ABA). Image by Socrtwo (public domain). Figure 16.4. 2: The carotenoid zeaxanthin absorbs blue light and reflecting orange and red light. It is a precursor to abscisic acid. WebFeb 16, 2024 · Seed dormancy transition is a vital developmental process for seedling propagation and agricultural production. The process is precisely regulated by diverse endogenous genetic factors and environmental cues. Callery pear (Pyrus calleryana Decne) is an important rootstock species that requires cold stratification to break seed … historia father