Influence of salinity on germination and seeds viability of two primary colonizers of Mediterranean salt pans

Rubio-Casal, Alfredo E.; Castillo, Jesús M.; Luque, C.J.; Figueroa, M.E.

doi:10.1006/jare.2002.1042

Cited by 104 publications

(58 citation statements)

References 16 publications

(27 reference statements)

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“…; (ii) mean daily germination (MDG) =Final germination percentage / number of days to final germination (Rubio-Casal et al, 2003) cited by (Datta et al, 2009) in Journal of Applied Sciences & Environmental Management ; (iii) germination rate (GR) = (n1t1)+(n2t2) + …+ (nxtx ) / Xn where n1 is the number of germinant at the first day of germination, t1 is the days from start to first germination, and Xn is the total number of seeds germinated (Rubio-Casal et al,2003) also cited by (Datta et al, 2009) in same journal as above; (iv) daily germination speed (DGS) (Forestry Department, 2011) = cumulative percentage germination / the number of days since sowing (v) germination value (GV)= (∑DGS/N)XGP/10) (Forestry Department, 2011), where DGS= daily germination speed= number of daily counts of germinated seeds from the date of first germination, and GP= germination percentage at the end of whole experiment, and (vi) final germination percentage (FGP)= number of germinated seeds/total number of sown seeds x 100%.…”

Section: Methodsmentioning

confidence: 99%

Effects of Visible Light Wavelengths on Seed Germinability in Stevia Rebaudiana Bertoni

Abdullateef¹,

Osman²

2011

IJB

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Stevia rebaudiana Bertoni is one of 154 members of the genus Stevia and it produces sweet steviol glycosides .It originated from Paraguay. The leaves were used as general sweetening agent. Seed germination in Stevia is generally very low and constituted major obstacle to large scale production of the crop. Different wavelengths from visible light were tested on germination of Stevia seeds. The two lights used were (i) white light -400 to 700nm, and (ii) red light -660nm. Parameters evaluated include (i) Mean time germination, (ii) mean daily germination, (iii) germination rate, (iv) daily germination speed and (v) germination value. Multivariate tests at probability level <.05 revealed that daily germination speed and number of germinated seeds were significantly higher at (< .001) and (< .014) respectively with the effect of red light on seed germination. Red light (660nm) had better influence on germination in Stevia seeds than white light (400-700nm) and control experiment.

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Section: Methodsmentioning

confidence: 99%

Effects of Visible Light Wavelengths on Seed Germinability in Stevia Rebaudiana Bertoni

Abdullateef¹,

Osman²

2011

IJB

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“…It is calculated as follows :GR = (n 1 t 1 )+(n 2 t 2 ) + ……………. + (n x t x ) / X n where n1 is the number of germinants at the first day of germination , t 1 is the days from start to fist germination , and X n is the total number of seeds germinated (Rubio-Casal et al,2003) iii) Mean Daily Germination MDG = Final germination percentage / number of days to final germination (Rubio-Casal et al, 2003) Regarding morphological studies root length, shoot length, fresh weight , dry weight were measured. For biochemical study total chlorophyll (Arnon, 1949), total soluble sugar (Mc.Cready et al, 1950), Protein (Lowry et al, 1952) and Proline (Bates et al, 1973) were analysed from physiologically active leaf from different treatments.…”

Section: Methodsmentioning

confidence: 99%

Impact of salt stress on five varieties of Wheat(<i>Triticum aestivum</i> L.) cultivars under laboratory condition

Datta¹,

Nag²,

Banerjee³

et al. 2010

Journal of Applied Sciences and Environmental Management

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ABSTRACT:The impact of salt stress under different salinity level (0,25,50,75,100,125,150 mM NaCl ) on five varieties of Wheat viz., HOW-234, HD-2689, RAJ-4101, RAJ-4123, and HD-2045 was conducted. The data showed that different level of salinity significantly affected the growth attributes by reducing root and shoot length for salinity below 125mM. Fresh weight and dry weight of root and shoot were reduced significantly with subsequent treatment. Regarding germination maximum germination was found in variety HD2689 in all the treatments and maximum inhibition was found to be in case of HOW234 variety at 150mM salinity level. Regarding biochemical analysis the sugar, proline content increased with increasing salinity level where as protein content decreased in the physiologically active leaves of different treatments for all the varieties of wheat. @ JASEM

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“…perennis, both Chenopodiaceae. This species can tolerate high salinity and water potentials (Rubio-Casal et al 2003) and has substantial phenotypic plasticity. Local differentiation of populations has been reported, probably as a result of strong cleistogamy (Jefferies et al 1981;Adam 1993;Ball and Akeroyd 1996;Davy et al 2001) which promotes the inbreeding which enables locally differentiated populations (Jefferies et al 1981).…”

Section: Introductionmentioning

confidence: 99%

Salicornia ramosissima population dynamics and tolerance of salinity

Silva

Caldeira

Freitas

2006

Ecological Research

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Field and greenhouse studies have been conducted to clarify aspects of population dynamics and NaCl tolerance of Salicornia ramosissima J. Woods. Two populations, Varela and Verdemilho, were monitored in the field during two consecutive life cycles and aspects of their morphology and density were recorded monthly. In the laboratory seedlings were exposed to different salinity for 10 weeks and growth and mortality rate were recorded weekly. The growth of the populations differed significantly, possibly because of the different salinities of the two sampling sites and/or genetic adaptations of the two populations to the environmental conditions. The absence of a significant correlation between sediment salinity and stem elongation suggested, however, that salinity, alone was not responsible for the differences observed and was possibly associated with other factors, because of nutritional, edaphic, and microclimatic conditions. S. ramosissima did not develop well in conditions of elevated or moderate salinity; its growth was optimum at low salinity. Optimum development of S. ramosissima may, nevertheless, depend on the total number of large seeds in a population seed bank, because of their greater success in germination and germinability under stress conditions than small seeds.

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Influence of salinity on germination and seeds viability of two primary colonizers of Mediterranean salt pans

Cited by 104 publications

References 16 publications

Effects of Visible Light Wavelengths on Seed Germinability in Stevia Rebaudiana Bertoni

Effects of Visible Light Wavelengths on Seed Germinability in Stevia Rebaudiana Bertoni

Impact of salt stress on five varieties of Wheat(<i>Triticum aestivum</i> L.) cultivars under laboratory condition

Salicornia ramosissima population dynamics and tolerance of salinity

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