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	Provedor de dados Acta Botanica (2) Rev. Bras. Bot. (1) Autor Rezvani,Mohammad (3) Zaefarian,Faezeh (3) Amini,Vajihe (1) Rahdari,Parvaneh (1) Vahidzadeh,Samaneh (1) Zadeh,Hossein Ghani (1) Mais... Palavra-chave Light (2) Alternating and constant temperatures (1) Bioaccumulation factor (1) Drought and salt stress (1) Germination (1) Gibberellic acid (1) Heavy metals (1) PH (1) Phalaris minor (1) Salt and osmotic stress (1) Sowing depth (1) Temperature (1) Translocation factor (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2017 (1) 2014 (1) 2012 (1) País Brazil (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Effect of some environmental factors on seed germination of Eryngium caeruleum M. Bieb. populations Acta Botanica Rezvani,Mohammad; Zaefarian,Faezeh. ABSTRACT The effects of alternating and constant temperatures and light regimes, osmotic and salt stress and pH were tested on seed germination in four populations of Eryngium caeruleum. Laboratory experiments revealed that the four populations exhibited different responses to alternating temperature and light conditions. Alternating temperature and photoperiod had a greater positive effect on seed germination compared to complete darkness. The optimal constant temperature within 10 ºC to 15 ºC for seed germination of each population was determined in a light/dark photoperiod. Seed germination severely decreased under water stress and was completely inhibited at -0.8 MPa osmotic potential. Saline stress sharply decreased germination percentage. Germination... Tipo: Info:eu-repo/semantics/article Palavras-chave: Alternating and constant temperatures; Germination; Light; PH; Salt and osmotic stress. Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000200220 Effects of chemical treatments and environmental factors on seed dormancy and germination of shepherd's purse (Capsella bursa-pastoris (L.) Medic.) Acta Botanica Rezvani,Mohammad; Zaefarian,Faezeh; Amini,Vajihe. Shepherd's purse (Capsella bursa-pastoris) is a problematic weed in citrus orchards and crop fields in northern Iran. In a series of laboratory and greenhouse experiments, we evaluated the effects that treatment with gibberellic acid (GA3) and potassium nitrate (KNO3), as well as environmental factors, including temperature, the duration of pre-chilling (wet and dry), drought stress, salt stress, pH, and sowing depth, have on seed dormancy breaking and germination in C. bursa-pastoris. Treatment with GA3 strongly stimulated germination of C. bursa-pastoris in conditions of light/dark and continuous darkness. The germination rate was highest (40.08%) for seeds treated with 400 ppm of GA3 in the light/dark condition. Treatment with KNO3 did not significantly... Tipo: Info:eu-repo/semantics/article Palavras-chave: Drought and salt stress; Gibberellic acid; Light; Temperature; Sowing depth. Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062014000400002 Effectiveness of plant growth promoting rhizobacteria in facilitating lead and nutrient uptake by little seed canary grass Rev. Bras. Bot. Zaefarian,Faezeh; Vahidzadeh,Samaneh; Rahdari,Parvaneh; Rezvani,Mohammad; Zadeh,Hossein Ghani. We investigated the effectiveness of Nitroxin inoculation on lead (Pb) and nutrient uptakes by little seed canary grass. The factors tested included inoculation (or not) with Nitroxin and different soil concentrations of Pb (0, 200, 400 and 800mgPbkg-1 soil). Increasing soil concentrations of Pb decreased stem, leaf and root dry weights. Shoot phosphorus concentrations increased in parallel with increasing soil Pb concentrations. Nitroxin inoculation did not alter the phosphorus concentration of the roots. The Pb translocation factor was &gt;1 in inoculated treatments in the Pb soil concentration range of 200 to 400mgkg-1; the translocation factor for 800mgPbkg‑1 with no inoculation of Nitroxin was, however, <1. Our results indicated that the Pb... Tipo: Info:eu-repo/semantics/article Palavras-chave: Bioaccumulation factor; Heavy metals; Phalaris minor; Translocation factor. Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042012000300003 Registros recuperados: 3 Primeira ... 1 ... Última

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