Longevity of Seeds
نویسندگان
چکیده
منابع مشابه
Longevity of cryogenically stored seeds.
Though cryogenic storage is presumed to provide nearly infinite longevity to cells, the actual shelf life achieved under ultra-cold temperatures has not been addressed theoretically or empirically. Here, we report measurable changes in germination of dried seeds stored under liquid nitrogen conditions for >10 years. There was considerable variability in the extent of deterioration among species...
متن کاملSeed longevity: survival and maintenance of high germination ability of dry seeds.
The seed constitutes the main vector of plant propagation and it is a critical development stage with many specificities. Seed longevity is a major challenge for the conservation of plant biodiversity and for crop success. Seeds possess a wide range of systems (protection, detoxification, repair) allowing them to survive in the dry state and to preserve a high germination ability. Therefore, th...
متن کاملEnhanced Expression of BiP Is Associated with Treatments that Extend Storage Longevity of Primed Tomato Seeds
While seed priming (hydration in water or osmotic solutions followed by drying) enhances seed germination performance, the longevity of primed seeds in storage often is reduced. Postpriming treatments including a reduction in seed water content followed by incubation at 37 or 40 °C for 2 to 4 h can substantially restore potential longevity in tomato (Lycopersicon esculentum Mill.) seeds. These ...
متن کاملDrying Rates following Priming Affect Temperature Sensitivity of Germination and Longevity of Lettuce Seeds
Seed priming (controlled hydration followed by drying) is used to alleviate high temperature inhibition of germination and improve seedling emergence of lettuce (Lactuca sativa L.) and other species. However, seed priming can also reduce the longevity of seeds during dry storage. Alternative drying methods [i.e., slow drying or moisture content reduction (MCR) before drying] can extend seed lon...
متن کاملThe influence of cone age on the relative longevity of Banksia seeds.
BACKGROUND AND AIMS Serotiny is common in the genus Banksia, so any seed collection is likely to be comprised of seeds that were produced in many different years. This study aimed to determine the impact of cone age and degree of serotiny on longevity in ex situ storage. METHODS Cones of identifiable age classes were collected from three species of Banksia. Seeds were extracted from cones and...
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ژورنال
عنوان ژورنال: Botanical Gazette
سال: 1909
ISSN: 0006-8071
DOI: 10.1086/330068