The present investigation was carried out to study the induced mutagenesis of EMS (Ethyl methane sulphonate) on the seed germination, seedling survival and LD50 value of Catharanthus roseus. The seeds of Vinca rosea were treated with different concentration of EMS viz., 5, 10, 15, 20, 25, 30, 35, 40, 45 and 50 mM. The untreated seeds were taken as control. The EMS treated and control seeds were...

Germination of Oncwk seblis L. spores is controlied by light and temperature. Temperatures of30 C can induce maximal germination in the dark to a level of 60 to 95% of that induced by a saturating dose of red light (0.38 joules/square meter) providing the spores are placed at the elevated temperature immediately after being sown. Maximum dark germination occurs with a minhmum exposure of 16 to ...

in order to evaluation the effect of drought stress on germination indices and early seedling growth of medicinal herb dill (anethum graveolens l), an experiment was conducted in the agricultural laboratory of urmia payam noor university in 2015 as a randomized complete block design with four replications. treatments were five levels of drought stress (0, -1, -2, -3 and -4 bar induced by polyet...

Comparative approaches between native and invasive species germination are useful for understanding invasion success. We studied the role of invasive–native neighboring seeds on germination and early growth of different grasses. We focused on the non-native species Eragrostis plana Ness, the most invasive plant in southern Brazilian grasslands. A germination experiment was performed with three ...

the study was conducted to investigate the effect of humic acid on the germination properties of medicinal plants borago officinalis and cichorium intybus in a completely randomized design with five replications. experimental treatment comprised the following dosages 0, 15, and 30 g l-1. the results revealed that effect of humic acid on the germination properties of c. intybus was significant (p

OBJECTIVE To develop a protocol for breaking of seed dormancy and increasing the seed germination rate of Bunium persicum. METHODS The seeds were treated with 3.1, 6.3, 12.5, 25, 50 and 100 µmol/L of benzyl aminopurine, gibberellic acid (GA3), thidiazuron (TDZ) and forchlorfenuron. Then, seeds were transferred to two different temperature conditions including room temperature (25 °C) and chil...

this research was carried out to investigate allelopathic effect of peganum harmala on seed germination of bromus tectorum. aboveground and underground tissues of peganum harmala in addition to its seeds were collected from bijar rangelands. collected materials of root, leaves, stem, seeds and a complex of mentioned parts were dried and powder. the research was performed at the greenhouse condi...

Seeds consist of encapsulated plant embryos in a highly resistant and desiccated state. Seeds enhance plant fitness by allowing plants to withhold their growth until the appearance of appropriate environmental conditions. Thereupon, seeds germinate, allowing the resumption of the plant’s life cycle. However, protection and propagation is not expected per se to confer fitness without germination...