Accelerated aging tests with seeds of 11 flax (Linum usitatissimum) cultivars

Diederichsen, Axel; Jones-Flory, L.L.

doi:10.15258/sst.2005.33.2.14

Cited by 25 publications

(17 citation statements)

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“…We also found that in this species seed color is not a differential factor for seed dormancy behavior under the studied parameters. While studies with dark seeds of flax (Linum usitatissimum) showed higher viability compared to yellow seeds after accelerated ageing (Diederichsen and Jones-Flory 2005), in that species variations in seed hygroscopicity and final moisture content could have accounted for the different behavior, while no correlation was found with seed weight. These conclusions are consistent with the fact that seed water content in equilibrium of S. diclinis did not show differences among colors.…”

Section: Discussionmentioning

confidence: 91%

“…Morphological heterogeneity may occur in seed size, shape, and also color (Baskin and Baskin 1998). Seed heterogeneity may affect physiological properties, being associated with ecological strategies that have evolutionary significance (Venable 1985), including dormancy (Duran and Retamal 1989), germination (Puga-Hermida et al 2003), and longevity behavior (Diederichsen and Jones-Flory 2005). Several aspects of seed heterogeneity have been reviewed by Matilla et al (2005).…”

Section: Introductionmentioning

confidence: 99%

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Dormancy release and seed ageing in the endangered species Silene diclinis

et al. 2010

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The influence of seed testa color, temperature and seed water content on dormancy release and seed viability loss in the endangered, endemic species Silene diclinis (Lag.) M. Laínz was evaluated. Dormant heterogeneous seeds (black, red and grey colored) were exposed to three different temperatures (5, 20, and 35°C) and two relative humidities (33 and 60%) in order to assay their dormancy release. Longevity behavior was studied for the three colored seeds, storing samples at nine different combinations of temperature (5, 20 and 35°C) and relative humidities (33, 60 and 90%). According to our findings, seed heteromorphism was not related to neither break of dormancy nor seed storage behavior. Silene diclinis seeds present dormancy after collection, and need an after-ripening period to germinate. Temperature and relative humidity are positively correlated with dormancy release and seed ageing. Therefore, both factors must be carefully controlled during seed manipulation in the laboratory for long term seed conservation purposes. When seeds are stored immediately after collection (dormant), if the temperature of storage is above the base temperature for dormancy release found in this work (between 2.7 and 1.6°C), seeds may eventually overcome dormancy. On the other hand if seeds are stored after an afterripening period, storage at low temperature does not induce secondary dormancy.

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Section: Discussionmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Dormancy release and seed ageing in the endangered species Silene diclinis

et al. 2010

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“…It is assumed that variation in seed reserve of linseed genotypes we used was responsible for the differences in seedling growth because higher seed weight resulted in higher germination and vigorous seedling growth. Although Diederichsen and Jones-Flory (2005) linseed cultivars, seed weight would be responsible for seedling growth as supported by Soltani et al (2002) and in chickpea, Kaya and Day (2008) in sunflower, who found relationship between seed weight and seedling growth. Depending on decrease in shoot and root length, seedling fresh weight gradually declined with the increasing salinity stress.…”

Section: Resultsmentioning

confidence: 96%

Classification of some Linseed (Linum usitatissimum L.) Genotypes for Salinity Tolerance using Germination, Seedling Growth, and Ion Content

Kaya

Day

Çıkılı

et al. 2012

Chilean J. Agric. Res.

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Salinity reduces germination, delays emergence, and inhibits seedling growth of linseed (Linum usitatissimum L.) while some varieties are less affected by salinity than others. In this study, we aimed to determine the effects of NaCl levels (0, 5, 10, 20 and 30 dS m -1 ) on germination and seedling growth of 10 linseed genotypes (lines 87, 89, 104, 114, 193, 194, 209, 215, and to classify the genotypes for salinity tolerance using germination and seedling characteristics. Germination percentage, mean germination time, root and shoot length, seedling fresh and dry weight, Na + content and Na:K ratio of seedlings were investigated. Classification of linseed genotypes for salinity tolerance was done according to (i) combination of Principal Component and Cluster Analysis, (ii) Na + content, and (iii) Na:K ratio of seedling. The results showed that the highest values were obtained from lines 193, 194 and 215 except for mean germination time, while germination percentage was not adversely influenced by NaCl up to 20 dS m -1 . Seedling growth was inhibited at 20 dS m -1 although genotypes exhibited varying responses. Na + content was enhanced by NaCl, but seedling from lines 194, 193 and 215 had the lowest Na + content at all NaCl levels. Cluster analysis performed by multiple parameters revealed three groups for salinity tolerance. It was concluded that lines 193, 194, and 215 were tolerant, lines 87, 209, C-90, and cv. Sarı-85 were moderately tolerant and lines 89, 104, and 114 were salt-sensitive genotypes. Classification of genotypes for Na + content and Na:K ratio showed similar result for tolerant genotypes while different genotypes for sensitive group were detected.

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“…Storage at ambient conditions should not exceed 5 years (Gladis 1999). Genotypic differences in seed vigour exist, and some yellow-seeded accessions showed lower seed vigour than did other yellow-seeded and brown-seeded accessions (Diederichsen and Jones-Flory 2005).…”

Section: Cultivated Flaxmentioning

confidence: 97%

Ex situ collections of cultivated flax (Linum usitatissimum L.) and other species of the genus Linum L.

Diederichsen

2007

Genet Resour Crop Evol

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An overview of ex situ collections of cultivated flax (Linum usitatissimum L.) and 53 other species of the genus Linum L. is presented. The names of 33 genebanks in 23 countries preserving Linum germplasm and the species preserved at these places are provided. World genebanks engage in ex situ preservation of about 48,000 accessions of cultivated flax (Linum usitatissimum). However, possibly only 10,000 accessions of these are unique. Of the ca. 200 species of the genus Linum, other than L. usitatissimum, 53 are reported to be represented in the world's ex situ collections with a total of about 900 accessions. Of these, 279 accessions alone refer to the wild progenitor of cultivated flax, Linum bienne Mill. However, L. bienne from the region of origin of cultivated flax is rarely represented in genebank collections. References to publications describing the techniques for ex situ conservation and the infraspecific variation of cultivated flax are made. It is suggested that taxonomic species delimitation within the genus Linum is in need of clarification and that the variation in Linum species for ornamental use or use in breeding is investigated.

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Accelerated aging tests with seeds of 11 flax (Linum usitatissimum) cultivars

Cited by 25 publications

References 0 publications

Dormancy release and seed ageing in the endangered species Silene diclinis

Dormancy release and seed ageing in the endangered species Silene diclinis

Classification of some Linseed (Linum usitatissimum L.) Genotypes for Salinity Tolerance using Germination, Seedling Growth, and Ion Content

Ex situ collections of cultivated flax (Linum usitatissimum L.) and other species of the genus Linum L.

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