English Giant to different levels of vermicompost in north east, Botswana. (94)90042-6īosekeng G (2019) Response of rape ( Brassica napus L.) var. īaxter BJM, Van Staden J, Granger JE, Brown NAC (1994) Plant-derived smoke and smoke extracts stimulate seed germination of the fire-climax grass Themeda triandra. īanerjee A, Tripathi DK, Roychoudhury A (2019) The karrikin ‘calisthenics’: can compounds derived from smoke help in stress tolerance? Physiol Plant 165(2):290–302. īaldrianová J, Černý M, Novák J, Jedelský PL, Divíšková E, Brzobohatý B (2015) Arabidopsis proteome responses to the smoke-derived growth regulator karrikin. Īrshiya A, Khan MMA, Jaleel H, Uddin M (2019) Smoke-saturated water and karrikinolide modulate germination, growth, photosynthesis and nutritional values of carrot ( Daucus carota L.). Īremu AO, Bairu MW, Finnie JF, Van Staden J (2012) Stimulatory role of smoke-water and karrikinolide on the photosynthetic pigment and phenolic contents of micropropagated ‘Williams’ bananas. Ībdollahi MR, Ghazanfari P, Corral-Martínez P, Moieni A, Seguí-Simarro JM (2012) Enhancing secondary embryogenesis in Brassica napus by selecting hypocotyl-derived embryos and using plant-derived smoke extract in culture medium. napus seeds exposed to varying environmental conditions.Ībdollahi MR (2012) Effect of plant-derived smoke on germination, seedling vigour and growth of rapeseed ( Brassica napus) under laboratory and greenhouse conditions. Taken together, smoke water and KAR 1 treatments improved germination and seedling vigor of B. There were significant interaction effects (P < 0.001) of biostimulant and photoperiod on shoot length, root length and root-to-shoot length ratio. Both biostimulant treatments caused a significant increase in seedling vigor (P < 0.001) compared to the control as measured by shoot length, root length, seedling mass and root-to-shoot length ratio of B. Smoke water and KAR 1 treatments significantly enhanced germination (Fisher’s test, P < 0.05) under constant light and alternating light/dark conditions. Overall, constant dark condition promoted better germination than both constant light and alternating light/dark conditions. Priming seeds with KAR 1 and smoke water extended the germination range (above 50% germination) to 40 ☌ and mitigated detrimental effects of the resultant heat stress. Brassica napus seeds germinated over a wide temperature range (10 ☌ to 35 ☌). KAR 1 and smoke water-treated seeds absorbed the most amount of water after 1 h of imbibition compared to non-primed seeds. Several germination indices (GIs, final germination percentage, mean germination time, coefficient of velocity of germination, GI and germination rate index) were measured in four replications of 25 seeds each. English giant seeds exposed to varying environmental conditions (including heat and osmotic stress). The aim of the study was to examine the influence of seed priming with smoke water and karrikin-1 (KAR 1) on germination of Brassica napus cv. Environmental cues are major determinants in commercial cultivation of leafy vegetables, especially for resource-limited farmers.
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