2010
DOI: 10.1590/s0100-83582010000300002
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Influence of environmental factors on seed germination and seedling emergence of yellow sweet clover (Melilotus officinalis)

Abstract: Laboratory and greenhouse experiments were conducted to determine the effects of drought and salinity stress, temperature, pH and planting depth on yellow sweet clover (Melilotus officinalis) germination and emergence. Base, optimum and ceiling germination temperatures were estimated as 0, 18.47 and 34.60 o C, respectively. Seed germination was sensitive to drought stress and completely inhibited at a potential of -1 MPa, but it was tolerant to salinity. Salinity stress up to 90 mM had no effect over the M. of… Show more

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Cited by 57 publications
(38 citation statements)
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References 25 publications
(28 reference statements)
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“…The model fitted to relative germination rate vs. mean temperature for 3 percentiles (D10, D50 and D90) is shown in C. In a previous study (Chozin & Nakagawa, 1988), greater germination of C. iria was obtained at a constant temperature of 35 o C (69%) than at 15 o C (17%). Similar types of results were observed for different plants (Vidal et al, 2007;Rizzardi et al, 2009;Ghaderi et al, 2010).…”
Section: Effect Of Constant Temperature On Germinationsupporting
confidence: 80%
“…The model fitted to relative germination rate vs. mean temperature for 3 percentiles (D10, D50 and D90) is shown in C. In a previous study (Chozin & Nakagawa, 1988), greater germination of C. iria was obtained at a constant temperature of 35 o C (69%) than at 15 o C (17%). Similar types of results were observed for different plants (Vidal et al, 2007;Rizzardi et al, 2009;Ghaderi et al, 2010).…”
Section: Effect Of Constant Temperature On Germinationsupporting
confidence: 80%
“…Water stress causes a greater reduction in germination speed and accumulated germination of Melaleuca quinquenervia seeds than saline stress (Martins et al, 2011). Salinity stress up to 90 mM had no effect over seed germination of Melilotus officinalis, but its germination decreased by increasing salt concentration (Ghaderi-Far et al, 2010). Seed germination of invasive weed Cadillo (Urena lobata) was reduced by water stress below Effect of desiccation and salinity stress on seed germination ...…”
Section: Effect Of Salt and Peg Concentrations On Germinationmentioning
confidence: 97%
“…De acordo com Ghaderi-Far et al (2010), a redução do potencial hídrico, associada ao efeito tóxico dos sais presentes no solo, como por exemplo o cloreto de sódio, interfere inicialmente no processo de absorção de água pelas sementes, o que pode influenciar na germinação, no vigor das plântulas e, consequentemente, no desenvolvimento normal das plantas. O estresse hídrico geralmente atua diminuindo a velocidade e a porcentagem de germinação das sementes, sendo que para cada espécie existe um valor de potencial hídrico crítico, abaixo do qual a germinação não ocorre (Bewley et al 2013).…”
Section: Resultsunclassified