Effect of day length during plant development and caryopsis maturation on flowering and germination, in addition to temperature during dry storage and light during wetting, ofSchismus arabicus(Poaceae) in the Negev Desert, Israel |
| |
| Authors: | Schismus arabicus |
| |
| Institution: | The Jacob Blaustein Institute for Desert Research &; Department of Life Sciences, Ben-Gurion University of the Negev, Sede Boker Campus, 84990, Israel |
| |
| Abstract: | Schismus arabicusis a common annual with an ‘escape’ strategy of caryopsis dispersal and ‘opportunistic’ strategy of germination. It inhabits the Negev and Saharo-Arabian and Irano-Turanian phytogeographical regions. It displays a quantitative long-day response for flowering and a day length response in caryopses germinability. Germination in the dark was much higher than in light. The longer the period of light, from 0·5 h to continuous light, the lower the percentage of germination. The low percentage of germination, which is also regulated by temperature during dry storage, is important for the survival ofS. arabicusunder the unpredictable distribution and small amounts of rain in its extreme desert habitats. |
| |
| Keywords: | flowering quantitative day length effects maturation and germinability dry storage temperatures light and dark |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
