Iranian Biology Society Journal of Plant Research (Iranian Journal of Biology) 2383-2592 28 5 2016 02 20 The effects of mucilage on improving of drought tolerance of Lepidium sativum L. in seed germination and early seedling growth The effects of mucilage on improving of drought tolerance of Lepidium sativum L. in seed germination and early seedling growth 1017 1027 759 FA Journal Article 2014 01 20 Plants grown starts from seed germination stage and continues with the seedling in soil. To evaluate the role of mucilage on improving of drought tolerance of Lepidium sativum L. in seed germination and early seedling growth a completely randomized experiment was conducted in a factorial arrangement with four replications. Drought stress levels (0, -5, -9, - 14.5, -21 MPa) and seed type (with mucilage, and without mucilage) were considered as first and second factors, respectively. Results indicate that seed germination percentage, speed of germination, shoot and root length as well as seed vigor were significantly reduced (p<0.01) with increasing drought stress. The mucilage effect on germination characteristics was significant at one percent level (p<0.01). In most of the studied traits, seeds with mucilage were less affected by drought stress compared to the seeds without mucilage. Overall, results indicate that mucilage has a positive role in maintaining moisture and can improve seed germination under drought stress condition. Plants grown starts from seed germination stage and continues with the seedling in soil. To evaluate the role of mucilage on improving of drought tolerance of Lepidium sativum L. in seed germination and early seedling growth a completely randomized experiment was conducted in a factorial arrangement with four replications. Drought stress levels (0, -5, -9, - 14.5, -21 MPa) and seed type (with mucilage, and without mucilage) were considered as first and second factors, respectively. Results indicate that seed germination percentage, speed of germination, shoot and root length as well as seed vigor were significantly reduced (p<0.01) with increasing drought stress. The mucilage effect on germination characteristics was significant at one percent level (p<0.01). In most of the studied traits, seeds with mucilage were less affected by drought stress compared to the seeds without mucilage. Overall, results indicate that mucilage has a positive role in maintaining moisture and can improve seed germination under drought stress condition. https://plant.ijbio.ir/article_759_fa14d4fe2f19414de3ebd9f63d5c0169.pdf