Estimation of the cardinal temperatures for germination of four Satureja species growing in Iran

Ketabi, H Zarif; Khazaei, H R; Nezami, Ahmad; Aghdaei, Seyed Reza Tabaei

doi:10.1515/hepo-2016-0001

Cited by 3 publications

(2 citation statements)

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“…For example; purple nutsedge (Cyperus rotundus) often germinates in soils having a high temperature, whereas germination of yellow nutsedge is higher where the soil temperatures frequently fall below freezing (Singh and Singh, 2009). Similarly, Satureja mutica, Satureja bachtiarica and Satureja macrantha showed 86, 81 and 55% seed germination, respectively, at 20 o C (Ketabi et al, 2016). Tang et al (2017) reported that triquetrous (Murdannia triquetra) seeds exhibited maximum germination (93%) at a temperature regime between 20/10 to 30/20 o C light/dark.…”

Section: Introductionmentioning

confidence: 94%

Germination Ecology of Lathyrus aphaca, a Problematic Weed of Wheat Crop under Semi-Arid Conditions of Pakistan

et al. 2019

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Lathyrus aphaca is an aggressive dicotyledonous weed. The effect of different agroecological components/factors on the germination ecology of this weed was explored under a glasshouse and laboratory condition in 2014. The germination response of L. aphaca was lower at high temperature while maximum seed germination was found at 15/12 oC (day/night). Light significantly stimulated L. aphaca germination; nevertheless, substantial germination occurred under dark conditions. More than 86-90% of L. aphaca seeds germinated at pH level of 6.2-7.5. A significant quantity of seed germinated at 250 mM NaCl. There was no germination at -1 MPa. When the temperature was lower than 20/15 oC (day/night) initiation time of germination and germination index (GI) decreased but time to 50% germination (T50) and mean germination time (MGT) increased. Darkness resulted in increased time to start germination, T50, MGT and decreased GI in L. aphaca when compared with the 10 and 12 h photoperiods. The pH of 6 and above 7 enhanced germination time, T50, MGT but decreased GI. Salt stress above 100 mM increased time to germination, T50, MGT but reduced GI. Osmotic potential above -0.4 MPa increased initial germination time, T50 and MGT as well as decreased germination index (GI) of L. aphaca. Increased seed depth in soil lowered germination percentage and GI but enhanced initial germination time, T50, MGT. It was concluded that L. aphaca can grow over a wide range of agroecological/environmental conditions. These results may aid the development of agronomic tools and strategies for weed management in arable crops for yield enhancement.

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Section: Introductionmentioning

confidence: 94%

Germination Ecology of Lathyrus aphaca, a Problematic Weed of Wheat Crop under Semi-Arid Conditions of Pakistan

et al. 2019

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“…It is an important medicinal, aromatic, and honey plant, traditionally used as a spice and natural preservative [13,16]. The leaves of winter savory have a high content of secondary metabolites such as steroids, flavonoids, tannins, and essential oils, hence their importance in the pharmaceutical, food, and perfume industries [17]. Winter savory has been found to have antioxidant, antibacterial, antifungal, antiviral, antiparasitic, diuretic, anti-HIV-1, antidiarrheal, antiproliferative, and immunostimulatory effects, as well as antiproliferative activity on cancer cells [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Effect of Hormonal Priming and Osmopriming on Germination of Winter Savory (Satureja montana L.) Natural Population under Drought Stress

Vidak¹,

Lazarević

Nekić

et al. 2022

Agronomy

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Winter savory (Satureja montana L.) is an important medicinal, aromatic, and honey plant. In Croatia, it is widely distributed along the Adriatic coast, where it is frequently exposed to droughts. First, the winter savory natural population with the highest germination across different drought treatments after hydropriming was selected. Nine hundred seeds from each of the three natural populations (P1, P2, and P3) were hydroprimed (dH2O) for 48 h. The seeds were then germinated in drought treatments with different concentrations of polyethylene glycol (PEG 6000) (−0, −0.2, −0.4, −0.8, −1.2, −1.6, −2, −2.5, −3.0 MPa). Since P1 showed the best results in germination parameters, it was used for the second phase of the experiment, where the effect of hormonal priming (100 and 400 ppm GA3, 48 h in the dark) and osmopriming (0.2% and 0.6% w/v KNO3, 72 h in the dark) on seed germination and seedling morphological parameters of the selected winter savory population under drought stress conditions (−0.8 and −2.5 MPa) was evaluated. Although winter savory grows in dry areas, this study showed that extremely dry conditions (−3.0 and −2.5 MPa) negatively affected seed germination, but this effect can be mitigated by priming treatments, especially with the hormonal priming (GA3 400 ppm).

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EFFECT OF STORAGE TEMPERATURE AND CULTIVARS ON SEED GERMINATION OF Lilium×formolongi HORT.

Rai¹,

Kim²

2020

JEBAS

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An experiment was carried out to evaluate the influences of seed storage temperature and variation due to cultivars on the germination of the Lilium×formolongi hort. seeds. The seeds of four cultivars of Lilium×formolongi Hort. viz. Augusta, Raizan Herald (RH), Eorayeon 1ho, and Eorayeon 2ho was treated with four temperature ranges 5°C, -2°C, -20°C and 20°C (Room temperature, Control) up to 6 months to execute the experiment. In total 500 seeds of each cultivar including four temperature regimes and four replications for each temperature treatment and each replication represented by 30 seeds have been provided 10 days chilling treatment before to test the germination to get the uniformity in germination. The laboratory experiment was carried out in a completely randomized design (CRD) to assess the different parameters of germination viz. germination percentage(GP), mean germination time (MGT), germination index (GI), time taken to 50% germination (T50), and coefficient of the velocity of germination (CVG) at four temperature regime of four cultivars. The ANOVA analysis revealed significant variability among the four cultivars for all germination parameters in all temperature treatment levels. The results of the experiment demonstrated that the storage temperature has a great influence on germination percentage (GP), mean germination time (MGT), germination index (GI), time taken to 50% germination (T50), and coefficient of the velocity of germination (CVG) with comparisons to the normal temperature stored seeds (20°C). The significant variation among these parameters for each cultivar demonstrated the significance of varied requirements like stored temperature for the long term storage of that particular cultivar.

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Estimation of the cardinal temperatures for germination of four Satureja species growing in Iran

Cited by 3 publications

References 44 publications

Germination Ecology of Lathyrus aphaca, a Problematic Weed of Wheat Crop under Semi-Arid Conditions of Pakistan

Germination Ecology of Lathyrus aphaca, a Problematic Weed of Wheat Crop under Semi-Arid Conditions of Pakistan

Effect of Hormonal Priming and Osmopriming on Germination of Winter Savory (Satureja montana L.) Natural Population under Drought Stress

EFFECT OF STORAGE TEMPERATURE AND CULTIVARS ON SEED GERMINATION OF Lilium×formolongi HORT.

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