Effects of seed moisture content, warm, chilling, and exogenous hormone treatments and germination temperature on the germination of blackthorn seeds

Afroze, Farhana; O'Reilly, Conor

doi:10.1080/11263504.2016.1179693

Cited by 5 publications

(3 citation statements)

References 17 publications

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“…Excess water may also cause decay of the seeds due to fungal or microbial infection. Seeds of Prunus spinosa L. adjusted to 25% moisture content during cold stratification germinated to a higher percentage than those fully imbibed (30%) (Afroze & O'Reilly, ).…”

Section: Discussionmentioning

confidence: 99%

Effect of soil moisture during stratification on dormancy release in seeds of five common weed species

Ding

Baskin

et al. 2018

Weed Research

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Summary Although the effects of cold stratification on the release of physiological dormancy in seeds have been studied extensively, knowledge of the role of soil moisture content on seed dormancy release during cold stratification is limited. Our study determined seed dormancy characteristics and the effect of soil moisture content on seed dormancy breakage during cold stratification in the five common weed species Amaranthus retroflexus, Chenopodium album, Chenopodium hybridum, Plantago lanceolata and Setaria glauca. Seeds of all five species were dormant at the time of harvest and their germination response to light and temperature varied. Soil moisture content had a significant effect on seed dormancy release of all species except P. lanceolata. Germination percentage of A. retroflexus, C. album, C. hybridum increased and then decreased as soil moisture content increased, regardless of germination test temperature. The optimal soil moisture content and seed moisture content for dormancy breakage of A. retroflexus, C. album, C. hybridum were 8%, 12%, 8% and 22.0%, 37.7%, 25.7% respectively. Dry storage (after‐ripening) significantly increased germination of S. glauca. Moreover, increasing soil moisture content first slowed and then increased dormancy breakage in S. glauca. These results suggest that data on soil moisture content should be incorporated into models that predict weed seed dormancy breakage and timing of seedling emergence as well as those for weed management.

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Section: Discussionmentioning

confidence: 99%

Effect of soil moisture during stratification on dormancy release in seeds of five common weed species

Ding

Baskin

et al. 2018

Weed Research

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“…However, three of the four alpine eucalypt species that were studied in this present study did not respond well to the cold stratification treatment with only E. mitchelliana benefitting from it. The cold stratification period of 4 weeks prior to the germination test, used in this study, may have induced some physical dormancy in seeds (Afroze and O'Reilly 2017) and delayed the softening of the seed coat that inhibited and/or slowed down root emergence. All seeds of a cohort may not have germinated readily under the combination of moisture and cool temperature, however, this would leave some viable seeds dormant to germinate at a later warmer temperature.…”

Section: Correlations Between Tz Seed Viability Vigour and Seed Massmentioning

confidence: 99%

A comparative study on seed physiology and germination requirements for 15 species of Eucalyptus

Afroze

Douglas

Grogan

2021

Theor. Exp. Plant Physiol.

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Seed physiology of 15 Eucalyptus species of interest for cut foliage plantations was unknown and therefore evaluated. The viability and vigour of seeds and germination potential of 15 Eucalyptus species was determined by using a tetrazolium (TZ) staining test, and the results were compared to a germination test. In a separate experiment, seeds of each lot were subjected to either 0 or 4-week cold stratification at 4 ± 1 °C to investigate their potential stratification requirement. After stratification, seeds were then allowed to germinate at 22 ± 1 °C with 16 h lighting per day for 36 days. Seed viability and vigour were checked by evaluating % root, cotyledon and first true leaves emergence, and the speed of emergence, in the germination test. The germination percentages varied with the species. Seed stratification with the interaction of seed species lots significantly affected both viability and vigour. The seed viability of the different species ranged from 9 to 100% and 2 to 100%, for the TZ test and germination test, respectively, with a high correlation (R2 = 0.89) between the two. Physiology tests revealed that cold stratification of seed was not required for the 15 species to maximise their germination potential and growth in Irish and British climate.

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“…also reported that -5 O C is the least effective temperature for seed germination and temperatures higher than 17 O C could re-impose the seed dormancy. The growth capacity of the seedlings was markedly decreased by a temperature greater than 25.5 O C during the germination period(Biggs & Langan, 1962;Afroze & O'Reilly, 2016). The high germination percentages observed at 5/15 O C and 10/20 O C coincided with the temperatures of April and May in natural habitat.…”

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confidence: 99%

Influence of Shade and Bed Types on Attaining Optimum Temperature for The Germination of Peach (Prunus Persica L. Batsch) Seeds at Holetta, Central Ethiopia

Setu

Mosie

Firdie

et al. 2020

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Poor germination of peach seeds is the major limiting factor for rootstock production under the Holetta condition because of the seed dormancy problem. Stratification plays an important role in shortening the dormancy and increasing the germination of peach seeds. The study aimed to find easy stratification techniques for the germination of peach seeds using shade and different bed types. The experiment was carried out at the Holetta Agricultural Research Center in two successive years of 2017 and 2018. We got seeds used for this study from peach trees, which were well adapted for the Holetta area. It was arranged in a completely randomized design with five treatments of under tree shade on a flatbed, under tree shade in sunken bed, out of tree shade on a flatbed, out of tree shade in sunken bed and refrigerator as a standard check. They put all treatments except the refrigerator under the grass shade constructed 1 m3 wide. The treatments replicated four times, and each replication contained 200 seeds. The results showed that temperature is the most important factor affecting the germination percentage of the peach seeds. Seeds sown under the temperature close to 8 0C which is in the refrigerator found to have better germination percentage (47.1%) followed by the seeds sown in the grass shade under the tree shade both on sunken (35.8%) and flatbeds (34.9%). Peach seeds stratified in the refrigerator had good germination percentage whereas survival of the seedling was better at out of tree shade in sunken bed and out of tree shade on the flatbed. Even though the germination percentage was lower and the germination speed index was higher than the refrigerator. Seeds stratified at a temperature of above 17 OC experienced a poor germination percentage.

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Effects of seed moisture content, warm, chilling, and exogenous hormone treatments and germination temperature on the germination of blackthorn seeds

Cited by 5 publications

References 17 publications

Effect of soil moisture during stratification on dormancy release in seeds of five common weed species

Effect of soil moisture during stratification on dormancy release in seeds of five common weed species

A comparative study on seed physiology and germination requirements for 15 species of Eucalyptus

Influence of Shade and Bed Types on Attaining Optimum Temperature for The Germination of Peach (Prunus Persica L. Batsch) Seeds at Holetta, Central Ethiopia

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