Longevity of seeds

Coefcients calculated from the avrami curve tting

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Unformatted text preview: t al., 2004). Seeds were stored at 58C and at the indicated water content throughout the experiment. Initial and final germination values are averages calculated within 1 year of harvest and after the indicated storage time, respectively. Coefficients calculated from the Avrami-curve fitting routine (see Methods section) were used to calculate the time for germination to decrease from the initial value to 50% (except for Abies procera where time to half the initial germination is calculated) Family Apiaceae Genus Apium Daucus Petroselinum Asteraceae Helianthus Lactuca Zinnia Brassicaceae Brassica Crambe Raphanus Chenopodiaceae Beta Spinacia Cucurbitaceae Citrullus Cucumis Cucumis Fabaceae Astragalus Glycine Lespedeza Lotus Medicago Onobrychis Phaseolus Trifolium Trifolium Vicia Liliaceae Allium Papaveraceae Papaver Pinaceae Abies Poaceae Eragrostis Festuca Festuca Hordeum Oryza Pennisetum Poa Sorghum Triticum Zea Solanaceae Capsicum Lycopersicon Nicotiana Petunia Ulmaceae Ulmus Species graveolens carota crispum annuus sativa violacea oleracea abyssinica sativus vulgaris oleracea lanatus melo sativa sp. max cuneata corniculatus sativa viciifolia vulgaris pratense repens sp. cepa somniferum procera curvula arundinacea rubra vulgare sativa glaucum pratensis bicolor aestivum mays annuum esculentum tabacum sp. americana Average Median Maximum Minimum Total number Germination (%) Avrami parameters Years No. of H2O content (%) Initial Final stored Slope Intercept f P50 (years) cultivars 2 19 2 3 9 4 18 4 8 10 5 5 7 7 3 1 1 3 4 3 3 3 3 3 21 3 4 3 3 3 3 2 1 3 7 3 1 3 6 4 6 1 7.73 7.26 7.44 3.67 5.24 7.08 5.40 7.18 5.35 7.52 7.96 5.99 5.67 6.32 5.67 6.78 7.70 7.17 6.85 8.00 7.56 6.16 7.66 9.37 6.91 5.40 9.65 8.53 8.65 8.11 8.49 8.41 8.56 7.32 9.17 8.32 8.38 5.92 6.52 5.66 5.62 6.79 90 86 89 92 98 88 95 74 99 91 97 98 95 97 93 95 92 84 89 84 93 87 87 94 94 99 49 94 91 92 97 98 87 90 97 95 99 98 92 95 93 90 76 79 73 82 13 42 40 48 97 87 86 95 91 93 88 16 7 70 70 27 96 57 84 91 31 51 1 82 33 41 73 13 63 87 90 26 98 76 89 89 58 1 26 26 26 27 26 24 26 27 27 26 27 27 27 27 27 27 30 26 26 27 26 25 25 26 26 44 27 26 26 26 26 32 27 26 26 40 26 27 26 25 25 28 1.1 1.0 1.0 1.0 1.7 1.3 2.2 3.1 1.0 1.0 1.6 1.0 1.0 1.0 2.5 1.7 1.9 1.1 1.0 2.0 1.0 1.0 1.1 1.0 1.3 1.9 1.7 1.0 1.3 1.3 1.2 3.1 1.2 1.0 1.4 2.4 1.0 1.4 1.0 1.0 1.3 2.0 2 5.3 2 5.0 2 4.6 2 4.5 2 5.7 2 4.5 2 7.5 2 10.2 2 6.6 2 5.0 2 7.7 2 6.2 2 5.9 2 5.7 2 11.6 2 6.3 2 4.8 2 5.1 2 4.6 2 6.0 2 6.2 2 5.4 2 5.0 2 5.4 2 4.0 2 7.54 2 3.9 2 4.9 2 4.1 2 5.2 2 5.3 2 9.8 2 4.4 2 5.6 2 7.2 2 9.3 2 6.0 2 5.7 2 5.4 2 4.8 2 4.7 2 5.2 123 145 100 91 28 31 30 28 730 147 133 475 351 299 98 40 13 93 95 20 492 227 97 211 22 52 10 135 23 54 82 25 42 260 168 48 385 58 215 126 37 14 75 79 58 56 23 20 25 21 497 88 102 318 224 199 81 31 10 52 55 15 307 127 57 133 15 43 8 85 15 37 58 22 25 154 125 40 263 44 130 81 26 10 5 3 21 1 207 7.12 7.22 9.65 3.67 42 91 93 99 49 42 62 73 98 1 42 27 26 44 24 42 1.4 1.2 3.1 1.0 42 2 5.9 2 5.4 2 3.9 2 11.6 42 139 94 730 10 42 91 56 497 8 42 the long shelf-life category. Species with P50s that cluster...
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This note was uploaded on 03/03/2013 for the course SFSF 202 taught by Professor Sf during the Spring '13 term at Cambridge.

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