Seed life span and food security
| Autor: | Louise Colville, Hugh W. Pritchard |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Crops
Agricultural 0106 biological sciences 0301 basic medicine Conservation of Natural Resources Physiology Soil seed bank media_common.quotation_subject Longevity Germination Plant Science Biology 01 natural sciences Food Supply Crop 03 medical and health sciences Gene bank Temperate climate Humans media_common Orthodox seed business.industry Temperature food and beverages Humidity Plants Ex situ conservation 030104 developmental biology Agronomy Agriculture Seeds business 010606 plant biology & botany |
| Zdroj: | New Phytologist. 224:557-562 |
| ISSN: | 1469-8137 0028-646X |
| DOI: | 10.1111/nph.16006 |
| Popis: | Much is known about the inter-specific distribution of life span in a wide diversity of vertebrates and in adult plants, but not for seeds, yet the functional trait seed life span underpins global agriculture, plant species conservation and seed persistence in the soil. We sourced data for five storage conditions (soil seed bank; high temperature - high humidity accelerated ageing; temperate, cooler, open storage; cool, dry, refrigerator; and cold, dry, freezer); and analysed the distribution of orthodox seed life span amongst crop and wild species. In all cases, whether for maximum known in situ life span in the soil seed bank (417 species), or for half-lives (P50s) ex situ (732 species), the distribution is right-skewed. The finding that seeds of > 50% of species are likely to have life spans ≤ 20% of the longest recorded under the same conditions has implications for future research on the evolution of seed traits and gene bank collections management. |
| Databáze: | OpenAIRE |
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