Factors affecting seed germination and seedling establishment of a long-lived desert shrub (Coleogyne ramosissima: Rosaceae)
نویسندگان
چکیده
منابع مشابه
Factors affecting Campsis radicans seed germination and seedling emergence
Krishna N. Reddy Southern Weed Science Research Unit, USDA-ARS, P.O. Box 350, Stoneville, MS 38776 The effects of environmental factors on germination and emergence of Campsis radicans seeds were examined in laboratory and greenhouse experiments. Campsis radicans pods produced numerous, papery, and small seeds (696 seeds/pod; 4 mg/seed). Seeds exhibited dormancy that was relieved (74% germinati...
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The success of seedling establishment of desert plants is determined by seedling emergence response to an unpredictable precipitation regime. Sand burial is a crucial and frequent environmental stress that impacts seedling establishment on sand dunes. However, little is known about the ecological role of seed mucilage in seedling emergence in arid sandy environments. We hypothesized that seed m...
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Storage compound accumulation during seed development prepares the next generation of plants for survival. Therefore, processes involved in the regulation and synthesis of storage compound accumulation during seed development bear relevance to germination and seedling establishment. The wrinkled1 (wri1) mutant of Arabidopsis (Arabidopsis thaliana) is impaired in seed oil accumulation. The WRI1 ...
متن کاملFactors Affecting Seed Germination and Seedling Growth of Terrestrial Orchids Cultured in Vitro
Terrestrial orchids (Orchidaceae) have become objects of concern to conservationists due to the plants' high sensitivity to changes in its environment (Rasmussen, 1995). Surface sterilization of mature seeds before germination eliminates barriers to germination; hypochlorites are most often used for this (Lindén, 1992). The barriers include an almost waterproof testa, and embryo integuments con...
متن کاملEffects of Salinity and Drought Stresses on Seed Germination and Seedling Growth of Desert Wheatgrass Agropyron desertorum
Considering forage grass species, germination is one of the important stagesconcerning the growing stage that is often influenced by environmental stresses,particularly salinity and drought stresses. Thus, this study aims to assess the effects ofsalinity and drought stresses on germination characteristics and seedling growth of desertwheatgrass, Agropyron desertorum (Fisch. ex Link) Schult. in ...
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ژورنال
عنوان ژورنال: Plant Ecology
سال: 2005
ISSN: 1385-0237,1573-5052
DOI: 10.1007/s11258-004-3038-x