Light regulated seed germination in Typha angustata Bory et Chaub |
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Authors: | B Gopal KP Sharma |
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Institution: | Dept. of Botany, University of Rajasthan, Jaipur 4 India |
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Abstract: | The seeds of Typha angustata Bory et Chaub. germinate at room temperature (25–27°C) only in the presence of light. Percentage germination increases with an increase in both light intensity and duration. 100% germination occurs within 48 h at 1000 lux and 18 h photoperiod. Germination is inhibited by blue light, but this can be reversed by exposure to yellow or red light. The longer the exposure to blue light, the longer is the duration of yellow or red light required to overcome the inhibition. The significance of these findings is briefly discussed. |
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