In 2010 and 2011, pot experiments were conducted at Niono Agronomic Research station to determine soil alkalinity/salinity effects on seed germination and seedling growth of vegetable crops. Three types of soil types with physical sign of salt effects were used for these experiments: salt affected black soil, salt affected white soil and soil presenting no physical sign of salinization. The tes...

allelopathy is one of the main factors limiting the plants growth. the present study investigated the effect of aqueous extract of leaves and fruit of artemisia sieberi that is an important species for rangeland rehabilitation on seed germination and seedling growth of three alfalfa species (medicago sativa cv. nikshahri, medicago polymorpha and medicago scutellata cv. robinson) in laboratory a...

almonds belong to prunus genus, which is related to rosaceae family. it has close relatives with different species of stoned fruits. one of the main reasons for the long period of seed germination in prunus is compound dormancy, such as the external seed cover as physical dormancy and embryo dormancy causes physiological dormancy. seed stratification and treatments with various hormones are use...

objective: germination is one of the most important stages of plants growth that affected by environmental stresses, especially drought and salinity. methods: in order to study of artichoke germination under different levels of salinity and drought, two separate experiments were performed. the four levels of salinity by nacl (0, 50, 100, 150 mm) with three replications and five levels of drough...

Background: Effects of cadmium (Cd) metal on growth, photosynthetic pigments, level of osmolytes and elements, and antioxidant potential of Brassica juncea seedlings were evaluated. Materials and Methods: Seeds were exposed to different concentrations of metal, i.e., 0, 0.2, 0.4, and 0.6 mM Cd. To investigate the metal influence on biochemical and physiological factors, observations were made o...

Pepper seeds (Capsicum annuum L.) var. B12 were mutagenized by four presoaking treatments in ten concentrations of ethyl methane sulfonate (EMS) to determine the sensitivity of the first generation (M1) to mutagens. The spectrum of mutations and induced variability for various quantitative traits, including germination, percent plant height, injury occurrence, survival ratio, first three fruits...

The aim of this study was to assess the potential bacterial antagonists to control Macrophomina phaseolina root-rot of safflower by using screening methods. In total, 38 fluorescent pseudomonads isolated from rhizosphere soil of healthy safflower plants were collected from major safflower growing areas, 13 were initially selected based on dual culture technique on potato dextrose agar media. Fu...

A prerequisite for most plant transformation systems is an efficient and reliable method to regenerate phenotypically normal plants. The present studies were undertaken with a view to the effects of Benzyl amino purine (BAP) and Indol butyric acid (IBA) hormones and genotypes on in vitro germination of immature embryos in walnut (Juglans regia L.). The immature embryos of walnut were excised fr...