Germination timing influences plant fitness, and its sensitivity to temperature may cause it to change as climate shifts. These changes are likely to be complex because temperatures that occur during seed maturation and temperatures that occur post-dispersal interact to define germination timing. We used the model organism Arabidopsis thaliana to determine how flowering time (which defines seed...

Seed germination is a crucial stage in the life history of a species because it represents the pathway from adult to offspring, and it can affect the distribution and abundance of species in communities. In this study, we examined the effects of phylogenetic, life history and environmental factors on seed germination of 134 common species from an alpine/subalpine meadow on the eastern Tibetan P...

Putrescine plays a distinct role in various types of biological functions all living organisms, as well environmental stress. The aim the study is to effect exogenous putrescine on physiological condition rice seeds investigated. Salt treatment resulted reduction speed germination, germination energy, energy percentage, final shoot and root length, plant dry weight, where proline content was re...

Giant foxtail (Setaria faberi) seeds differ in requirements for germination. Variable germinability arises during seed development under the influence of genotype, environment and parent plant. Giant foxtail seed germination has been shown to be regulated by independent asynchronous or dependent synchronous action of seed structures. To gain better insight into the process, germination was divi...

(How and why to measure the germination process?). In the last two centuries, papers have been published including measurements of the germination process. High diversity of mathematical expressions has made comparisons between papers and some times the interpretation of results difficult. Thus, in this paper is included a review about measurements of the germination process, with an analysis o...

1. BORTHWICK, H. A., S. B. HENDRICKS, M. WV. PARKER, E. H. TOOLE, & VIVIAN K. TOOLE. 1952. A reversible photoreaction controlling seed germination. Proc. Natl. Acad. Sci. 38: 662-666. 2. BORTHWICK, H. A., S. B. HENDRICKS, E. H. TOOLE, & VIVIAN K. TOOLE. 1954. Action of light on lettuce seed germination. Botan. Gaz. 115: 205-225. 3. FLINT, L. H. & E. D. 'MCALISTER. 1937. Wavelengths of radiation...

Large and/or aged seeds are prone to hypoxic conditions during germination. Germination of selected vegetable seeds including corn (Zea mays L.), squash (Cucurbita pepo L.), and tomato (Solanum lycopersicum L.) was studied in water with different concentrations of hydrogen peroxide (H2O2) solution ranging from 0, 0.06% to 3.0% (v/v) or in aeroponics, all with 0.5 mM CaSO4. Imbibition, oxygen co...

Seed germination is sensitive to glucose (Glc), nitric oxide (NO) and polyamine (PA). To elucidate whether cross-talk among Glc, NO and PAs occurs in mediation of seed germination, effects of Glc, NO and spermine on seed germination of Lotus japonicus were studied. Glc retarded seed germination in a concentration-dependent manner. NO donor sodium nitroprusside (SNP) alleviated Glc-induced inhib...