Dormancy and germination in Stachys germanica L. subsp. bithynica (Boiss.) Bhattacharjee seeds: Effects of short-time moist chilling and plant growth regulators

Guleryuz, Gürcan; Kırmızı, Serap; Arslan, Hülya; Sakar, Fatma Selcen

doi:10.1016/j.flora.2011.07.003

Cited by 18 publications

(6 citation statements)

References 31 publications

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“…Güleryüz et al . () showed that increasing the moist prechilling duration from 15 to 30 days enhanced the seed germination of Stachys germanica L. subsp. bithynica (Boiss.)…”

Section: Discussionmentioning

confidence: 99%

Effects of some chemical factors, prechilling treatments and interactions on the seed dormancy‐breaking of two Papaver species

Golmohammadzadeh

Zaefarian

Rezvani

2014

Weed Biology and Management

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Seed dormancy is a common strategy of many plants to survive in natural and agricultural ecosystems. This study examined the effects of some chemical factors, including gibberellic acid and potassium nitrate, the prechilling temperature, duration and conditions and the light regimes on the seed dormancy-breaking of Papaver rhoeas L. and Papaver dubium L. The results showed that all the tested seed dormancy-breaking treatments significantly stimulated the germination of the two Papaver species. The seed germination was significantly influenced in relation to the seeds that were treated with 0-1250 p.p.m. of gibberellic acid. The maximum germination was observed in P. rhoeas L. at 750 p.p.m. and in Pa. dubium L. at 500 p.p.m. in the light/dark regime. There was a significant increase in the germination with an increase in the potassium nitrate concentration. The greatest germination was achieved at the lowest potassium nitrate concentration (0.5 g L −1 ) in the light/dark regime. The wet prechilling was more effective than the dry prechilling in the dormancy-breaking of both P. rhoeas L. and Pa. dubium L. The highest germination percentage was found in the wet prechilling condition after 45 days' prechilling duration. The combination of gibberellic acid and potassium nitrate was more successful than their separate application in the stimulation of germination in both Papaver species. Among the combined treatments of prechilling and gibberellic acid, the highest germination of P. rhoeas L. was recorded in the seeds that were treated with wet prechilling for 45 days with 750 p.p.m. gibberellic acid, while in Pa. dubium L., the maximum germination was recorded with wet prechilling for 45 days with 500 p.p.m. of gibberellic acid.

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“…Güleryüz et al . () showed that increasing the moist prechilling duration from 15 to 30 days enhanced the seed germination of Stachys germanica L. subsp. bithynica (Boiss.)…”

Section: Discussionmentioning

confidence: 99%

Effects of some chemical factors, prechilling treatments and interactions on the seed dormancy‐breaking of two Papaver species

Golmohammadzadeh

Zaefarian

Rezvani

2014

Weed Biology and Management

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“…Physiological dormancy is the most common form, found in seeds of gymnosperms and all angiosperm clades; it is the most prevalent form of dormancy in temperate zone seed banks Baskin, 1998, 2004). GA 3 treatment has been used to overcome low seed germinability in many plant species Güleryüz et al, 2011;Koyuncu, 2005;Białecka and Kępczyński, 2010), suggesting that the fresh seeds may be physiologically dormant. Such a dormancy mechanism may play an important role (together with temperature) in preventing premature germination during summer or early autumn, before conditions are suitable for plant growth (Bell et al, 1993).…”

Section: Discussionmentioning

confidence: 99%

Germination Requirements of Androsace Villosa L. (Primulaceae)

Arslan¹,

Kırmızı²,

Guleryuz³

et al. 2011

Acta Biologica Cracoviensia Series Botanica

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We investigated the germination requirements of Androsace villosa L. (Hairy Androsace), which spreads on limestone or granite screes or ledges of rocky or turfy slopes and hilltops of the alpine zone. With seeds collected from Uludag Mt. (Bursa, Turkey, 2200-2300 m a.s.l.), germination was studied in fresh seeds, seeds subjected to short-time moist chilling (15 d, +4°C), to GA 3 (100, 150 and 250 ppm), and to chilling plus GA 3 . The hormone and moist chilling treatments were carried out in continuous darkness (20°C) and under a 12 h photoperiod at 20/10°C. Seeds maintained in darkness gave higher germination percentages than seeds maintained under a photoperiod. Germination rates rose to 90-97% with 100-250 ppm GA 3 and short-time moist chilling in continuous darkness (20°C). Seeds germinated rapidly under a combination of GA 3 and short-time moist chilling in continuous darkness, generally giving the lowest mean germination times (4.4-5.0 d) among the treatments.K Ke ey y w wo or rd ds s: : Androsace villosa, gibberellic acid (GA 3 ), scarification, moist chilling, dormancy, alpine plants.

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“…The present results are further confirmed by Hossain et al [20], who noticed that exogenous application of GA 3 leads to an increase in the ratio of endogenous germination promoters and cell metabolism. Therefore, the high seed germination under moist-chilling conditions pre-treated with a combination of TDZ and GA 3 is due to an increase in the activity of endogenous phytohormones [21][22][23]. Furthermore, it is reported that the effect of TDZ on the breaking of seed dormancy is due to an increase in endogenous auxins and cytokinins of the seeds [24,25].…”

Section: Discussionmentioning

confidence: 99%

Plant Growth Hormones and Micro-Tuberization in Breaking the Seed Dormancy of Bunium persicum (Boiss.) Fedts

Khan,

Dar,

Alie

et al. 2023

Plants

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Bunium persicum is a valuable medicinal plant with limited production but high market demand. It thrives predominantly in high-altitude regions. The main challenges hindering its widespread cultivation are seed dormancy and a lengthy seed-to-seed cycle, making its large-scale cultivation difficult. Six genotypes of Bunium persicum were collected from different altitudes to evaluate its germination behavior and seed dormancy. The study was conducted during 2020–23 and comprised three experiments (viz., seed germination under an open field, controlled conditions, and micro-tuberization). Under open field conditions, germination percent was genotype dependent, and the highest germination percentage, root length, and shoot length were recorded in Shalimar Kalazeera-1. Germination behavior assessment of the Bunium persicum revealed that treatment T9 (GA3 (25 ppm) + TDZ (9 µM/L)) is effective in breaking the dormancy of Bunium persicum as well as in obtaining a higher germination percent for early development of the tubers. Similarly, with regard to the effect of temperature and moisture conditions, stratification under moist chilling conditions showed effectiveness in breaking seed dormancy as the germination percentage in stratified seeds was at par with the most efficient growth hormone. With regard to the in vitro micro-propagation, direct regeneration showed multiple shoot primordia at the base of the tubers without intervening callus phase from the MS medium supplemented with BA (22.2 µM) and NAA (13.95 µM) 4 weeks after sub-culturing. Similarly, medium supplemented with JA (8.0 mg/L) and BA (22.2 µM) produced well-organized somatic embryos with shiny surfaces, which appeared at the swelled basal portion of apical stems. Further, the combination of JA (6.0 mg/L) and BA (22.2 M) was effective in developing the micro-tubers and also enhanced the weight and length of Bunium persicum micro-tubers.

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Dormancy and germination in Stachys germanica L. subsp. bithynica (Boiss.) Bhattacharjee seeds: Effects of short-time moist chilling and plant growth regulators

Cited by 18 publications

References 31 publications

Effects of some chemical factors, prechilling treatments and interactions on the seed dormancy‐breaking of two Papaver species

Effects of some chemical factors, prechilling treatments and interactions on the seed dormancy‐breaking of two Papaver species

Germination Requirements of Androsace Villosa L. (Primulaceae)

Plant Growth Hormones and Micro-Tuberization in Breaking the Seed Dormancy of Bunium persicum (Boiss.) Fedts

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