Seed size and chilling affect germination of Larix decidua Mill. seeds

Gorian, F.; Pasquini, S.; Daws, Matthew I.

doi:10.15258/sst.2007.35.2.26

Cited by 6 publications

(2 citation statements)

References 13 publications

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“…In addition, the genetic component accounted for more than half of the total phenotypic variation for these traits, indicating that there is adequate genetic variability in the present material, as observed in other studies (Gorian et al 2007). Generally, environmental influences during the development of seeds combined with genetic variability can result in variations in seed dimensions.…”

Section: Populationssupporting

confidence: 83%

Genetic variation among and within populations of Cordia africana in seed size and germination responses to constant temperatures

2008

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Cordia africana Lam. is a commercial timber species that grows naturally throughout sub-Saharan Africa and tropical Arabia. At present very little is known about genetic variation in this species and baseline information is needed to initiate improvement programs in Ethiopia. Thus, the objectives of the study were to quantify the inter-and intrapopulation variations in seed size traits and germination responses to different constant temperature regimes. Seeds were collected from 30 open-pollinated families within each of the five populations representing the natural distribution of the species in Ethiopia. To examine seed size variations, seed length, seed width, and 1,000-seed weight were quantified. Inter-and intra-population variations in seed germination were investigated under different constant temperature regimes from 20 to 35°C in climate chambers. Significant variations in seed length, width and weight were detected both at interand intra-population levels, and family heritabilities of 0.63-0.76 showed that much of the phenotypic variation in seed size traits were additive genetic variation. Significant variation in germination was also found among and within populations as well as between the different constant temperature regimes. Generally the variation in germination was considerably higher within population than between populations. The optimal temperature for germination of C. africana seeds was 25-30°C with family heritabilities for germination ranging between 0.20 and 0.33, depending on the germination temperature.

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Section: Populationssupporting

confidence: 83%

Genetic variation among and within populations of Cordia africana in seed size and germination responses to constant temperatures

2008

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“…cum (Bourgoin et al 2004), Aribotrya japonica (El-Dengawy, 2005), Larix deciduas (Gorian et al 2007) and Prunus campanulata (Chen et al 2007). Variation in germination can be manifested through provenance tests designed to assess the degree and pattern of variation across species ranges.…”

Section: Research Papermentioning

confidence: 99%

Beneficial effects of cold-moist stratification on seed germination behaviors of Abies pindrow and Picea smithiana

Rawat

Khanduri

Sharma

2008

Journal of Forestry Research

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A study was conducted to evaluate the effect of GA 3 , moist-chilling and temperature on seed germination of Abies pindrow and Picea smithiana from five different provenances. Seeds were soaked in GA 3 (10 mg⋅L -1 ) for 24 h, then chilled at 3−5°C for 15 days. Four temperature regimes viz. 10°C, 15°C, 20°C and 25°C were used for stimulating seed germination. Results showed that soaking and chilling significantly increased germination percentage. The germination percentage was highest at 10°C. Overall results showed that soaking seeds in GA 3 (10 mg⋅L -1 ) for 24 h, moist chilling for 15 days, and germinating at 10°C produced an effective germination in both the species studied. The statistical analysis of the data proclaimed significant effect of treatment, temperature, provenance and treatment with temperature interactions on seed germination.

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2014

Seeds

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Seed size and chilling affect germination of Larix decidua Mill. seeds

Cited by 6 publications

References 13 publications

Genetic variation among and within populations of Cordia africana in seed size and germination responses to constant temperatures

Genetic variation among and within populations of Cordia africana in seed size and germination responses to constant temperatures

Beneficial effects of cold-moist stratification on seed germination behaviors of Abies pindrow and Picea smithiana

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