Effects of salt, alkali and salt–alkali mixed stresses on seed germination of the halophyte Salsola ferganica (Chenopodiaceae)

Wang, Yan; Jiang, Gang Qiang; Han, Yin Nan; Liu, Meng Meng

doi:10.1016/j.chnaes.2013.09.010

Cited by 34 publications

(26 citation statements)

References 40 publications

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“…Many structural features of the seeds such as perianth can also influence seed germination of halophytes particularly those found in salt deserts (Wang, Jiang, Han, & Liu, 2013;Wei & Wang, 2006;Yu, Hu, Wang, Yang, & Zhang, 2009). For example, presence of perianth inhibited seed germination of xerohalophytes Haloxylon salicornicum (Bhatt, Phartyal, & Nicholas, 2017), Haloxylon ammodendron, H. persicum (Wei & Wang, 2006), and Zygophyllum xanthoxylum (Yu et al, 2009).…”

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confidence: 99%

Perianth and abiotic factors regulate seed germination of Haloxylon stocksii—A cash crop candidate for degraded saline lands

et al. 2019

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Haloxylon stocksii, a common succulent halophyte of saline flats in Pakistan and adjacent countries, is utilized as forage, washing soda, and medicines by the local people. In addition, its cultivation can also prevent land degradation by erosion and salinity. Given that information about its seed ecology is limited, this study aimed to unveil the germination requirements of H. stocksii seeds. Seed morpho‐physical features and effects of perianth persistence, salinity (0–500‐mM NaCl), photoperiod (12 hr light/12 hr dark and 24 hr dark), thermoperiod (10/20°C, 15/25°C, 20/30°C, and 25/35°C), and osmotic stress (0 to −4.29 MPa) on germination and recovery were studied. Presence of perianth caused reductions both in imbibition and germination compared to seeds with perianth removed. Seeds germinated optimally under moderate (20/30°C) than lower (10/20°C and 15/25°C) and higher (25/35°C) temperatures. Under 24 hr dark seed germination was ~20% lower than that in 12‐hr photoperiod at 20/30°C and in distilled water. NaCl increment decreased germination, and only ~20% seeds germinated in the highest NaCl concentration. Ungerminated seeds, when shifted from salt solution to distilled water, showed high recovery of germination. Polyethylene glycol treatment also reduced germination, which was comparable with NaCl treatments. However, polyethylene glycol‐treated seeds showed low recovery, unlike NaCl‐treated seeds. Our data unveil that seeds of H. stocksii germinate optimally upon removal of perianth, under moderate temperature, in absence of salinity and/or osmotic stresses. This study thus provides essential baseline information for mass‐scale cultivation and conservation of H. stocksii in degraded arid‐saline areas.

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confidence: 99%

Perianth and abiotic factors regulate seed germination of Haloxylon stocksii—A cash crop candidate for degraded saline lands

et al. 2019

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“…The ability to maintain seed vigour during exposure to either drought, salinity or alkalinity stress conditions, and to commence the germination process when such stress are removed, is an important mechanism of halophytes under extreme abiotic conditions. The germination recovery test is often used to determine whether the seeds are killed or the germination process is prevented by stress (Wang et al ., ). Most seeds germinated after they were transferred from solutions of high salinity (−1·2 MPa) to distilled water at the optimum temperature (15–25 °C).…”

Section: Discussionmentioning

confidence: 97%

Germination responses of the halophyte Chloris virgata to temperature and reduced water potential caused by salinity, alkalinity and drought stress

Lin

Shao

Wang

et al. 2015

Grass and Forage Science

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Chloris virgata is considered a useful grass species for grassland restoration in northern China. However, little information exists concerning the germination responses of this species to temperature and water potential caused by stress conditions. Experiments were conducted in growth chambers to assess the effect of temperature, salinity, alkalinity, drought and the interactions of temperature and stress on seed germination. Seeds were germinated at three diurnal temperature regimes, with four water potentials in NaCl, NaHCO 3 and PEG solutions. Results showed that optimal germination under stress occurred at 15-25°C, and germination percentages and rates were inhibited by either an increase or decrease in temperature from the optimal temperature. The inhibitory effects of the low water potential caused by salinity and drought on germination were greater at 25-35°C, but seeds were subjected to more stress despite the relatively higher water potential because of the alkalinity at this temperature. The recovery percentage under salinity was highest at À1Á2 MPa at 15-25°C, and more than 80% of seeds also germinated at this water potential after they were transferred from drought stress. However, seeds lost their viability in higher alkalinities under all temperatures, and at 25-35°C, there was lower recovery percentage under stress. Results suggest that salinity, alkalinity and drought stress have different impacts on seed germination, and the tolerance to stress of C. virgata seeds is affected by the interactions of temperature and water potential caused by salinity, alkalinity and drought. Chloris virgata shows potential utility as a promising grass species in salinity-alkalinity and drought-stressed environments.

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“…Tohum gelişimi evresi, ekstrem çevresel faktörlere karşı oldukça yüksek dirence sahiptir (Wang et al 2013). Tuzlu topraklarda bitki gelişimi başarılı çimlenmeye bağlıdır (Khan and Ungar 2001).…”

Section: Tartışma Ve Sonuçunclassified

“…Halofitlerin yaşam döngülerindeki en önemli basamak tohum çimlenmesidir (Ungar 1995). Doğal koşullarda halofitlerin tohum çimlenmesi özellikle ışık, sıcaklık ve tuzluluk gibi çevresel faktörler tarafından kontrol edilmektedir (Khan et al 2002;Yıldız et al 2008;Guma et al 2010;Orlovsky et al 2011;Wang et al 2013, Ameixa et al 2016. Bununla birlikte, halofitik türler tohum çimlenmesi sırasında tuz stresine toleransta farklılık gösterebilmektedir (Khan et al 2002;Yıldız et al 2008;Zhang et al 2015).…”

Section: Introductionunclassified

“…(2014), S. crassa'nın fide evresinde aşırı tuzlu koşulları (1.5 M NaCl) tolere edebilen bir tür olduğunu bildirmiştir. Bunula birlikte, Salsola vermiculata (Guma et al 2010), Salsola ferganica (Wang et al 2013), Salsola affinis (Wei et al 2008) ve Salsola ikonnikovii (Xing et al 2013) gibi türlerin tohum çimlenmesi üzerine bazı çevresel stres faktörlerinin etkileri incelenmiş olmasına karşın S. crassa'nın tohum çimlenmesi üzerine çevresel faktörlerin etkilerinin incelendiği bir çalışma mevcut değildir. Bu nedenle, bu araştırmada laboratuvar koşullarında S. crassa tohum çimlenmesi üzerine farklı NaCl konsantrasyonları (0, 100, 200, 300, 400, 500, 600, 700 ve 800 mM), sıcaklık uygulamaları (10, 15, 20, 25, 30 ve 35C) ve ışığın (12 saat fotoperiyot ve sürekli karanlık) etkileri incelenmiştir.…”

Section: Introductionunclassified

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Effects of Salinity, Temperature and Light on Seed Germination of Halophyte Salsola crassa

Terzi¹,

Yıldız²,

Altuğ³

2017

AKU-J. Sci. Eng.

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ÖzetHalofit bitki türlerinde tohum çimlenmesi özellikle ışık, sıcaklık ve tuzluluk gibi çevresel faktörler tarafından kontrol edilmektedir. Halofit Salsola crassa'nın tohum çimlenmesi üzerine tuzluluk, sıcaklık ve ışık etkileşimlerine ilişkin herhangi bir literatür bulunmamaktadır. Bu nedenle, bu araştırmada S. crassa'nın tohum çimlenmesi üzerine 9 tuz konsantrasyonu (0, 100, 200, 300, 400, 500, 600, 700 ve 800 mM NaCl), 6 sabit sıcaklık (10, 15, 20, 25, 30 ve 35C) ve fotoperiyodun (12 sa ışık: 12 sa karanlık ve sürekli karanlık) etkileri araştırılmıştır. En yüksek çimlenme yüzdeleri (%98-99) distile suda, 20 ve 25C sıcaklık uygulamaları ve 12 saatlik fotoperiyotta elde edilmiştir. Tuz konsantrasyonundaki artış özellikle düşük ve yüksek sıcaklık uygulamalarında tohum çimlenmesinde belirgin bir azalışa neden olmuştur. Düşük (10 ve 15C) ve yüksek (35C) sıcaklık uygulamaları hem kontrol hem de tuz uygulamalarında tohum çimlenmesinde belirgin bir şekilde azalmaya neden olmuştur. Tüm sıcaklık uygulamalarında ve özellikle tuz uygulamalarında ışık ve karanlık uygulamaları arasında önemli farklılıklar bulunmuştur (P < 0.05). Bu sonuçlar, S. crassa'da çimlenme evresi stres toleransının ışık, sıcaklık ve tuzluluk etkileşimleri tarafından etkilendiğini göstermektedir. Bununla birlikte, 800 mM NaCl konsantrasyonunda çimlenebilme yeteneğinden dolayı S. crassa'nın tuza oldukça toleranslı bir tür olduğu ileri sürülebilir. Effects of Salinity, Temperature and Light on Seed Germination of Halophyte Salsola crassa Keywords Germination;Light; Temperature; Salsola crassa; Salinity AbstractGermination of halophyte plant species is controlled by several environmental factors, in particular light, temperature and salinity. There is no literature on the interactions of salinity, temperature and light on the seed germination of halophyte Salsola crassa. In this study, therefore, effects of 9 salt concentrations (0, 100, 200, 300, 400, 500, 600, 700 and 800 mM NaCl), 6 constant temperatures (10, 15, 20, 25, 30 and 35C) and photoperiod (12 h light: 21 h darkness and continuous darkness) on seed germination of S. crassa were investigated. The highest germination percentages (98-99%) were obtained in distilled water, at 20 and 25C temperature applications and 12 h photoperiod. An increase in salt concentration caused marked decrease in seed germination especially at low and high temperature treatments. Lower (10 and 15C) and higher (35C) temperature treatments caused marked inhibition in seed germination at both control and salt treatments. There were significant differences between the light and dark treatments in all temperature and salt treatments (P < 0.05). These results show that the stress tolerance of S. crassa at germination stage is affected by the interaction of light, temperature and salinity. However, it may be suggested that S. crassa is a highly salt tolerant species because of its ability to germinate in 800 mM NaCl concentration.

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Effects of salt, alkali and salt–alkali mixed stresses on seed germination of the halophyte Salsola ferganica (Chenopodiaceae)

Cited by 34 publications

References 40 publications

Perianth and abiotic factors regulate seed germination of Haloxylon stocksii—A cash crop candidate for degraded saline lands

Perianth and abiotic factors regulate seed germination of Haloxylon stocksii—A cash crop candidate for degraded saline lands

Germination responses of the halophyte Chloris virgata to temperature and reduced water potential caused by salinity, alkalinity and drought stress

Effects of Salinity, Temperature and Light on Seed Germination of Halophyte Salsola crassa

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