atfeh hoseini; َAli Moradi; H.R. Balouchi
Abstract
In order to investigate seed bio-priming effects on some germination index of Pimpinella anisum L. under drought stress, this research was done in genetic lab at Agriculture department of Yasouj University. The experiment was factorial with two factor based on CRD design in 4 replications and in each ...
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In order to investigate seed bio-priming effects on some germination index of Pimpinella anisum L. under drought stress, this research was done in genetic lab at Agriculture department of Yasouj University. The experiment was factorial with two factor based on CRD design in 4 replications and in each Petri dishe 30 seeds were planted. First factor was seed bio-priming with nine level (on bio-priming, 4 Bactria strain (P.fluorescent), fluorescent (CHA0), 1) P.F (, 2) P.F (, 16) B (and 52 (B)) and 4 strain of T.harzianum (T29, T32, T43, T36 and T39) and second factor include osmotic potential of drought stress in 3 levels (0, -3 and -6 bar). The evaluated traits in this study included germination percentage, germination rate, seedling length, dry weight, seedling vigour index (weight and length) and alometric coefficient. Results of test showed that increasing drought stress, decreased seed germination indexes, and bio-priming couldn’t improve these indexes than non-priming seeds, therefore in each of drought stress potential, T36 has the maximum germination percentage (83.88), germination rate (4.7), seedling length vigor index (10), seedling dry weight (8.07), and seedling weight vigor index (15.25) and not primed seeds have the lowest amount of this traits. According to the results, it can be stated that the application of bio-priming treatment can moderately reduce the adverse effects of drought stress in the germination stage of pimpinella anisum L.
atfeh hoseini; ali moradi; yaqoub behzadi
Abstract
To study the germination of seeds of anise harvested from the mother plant under different fertilizer treatments experiment completely randomized design with 17 treatments and 4 replications was conducted in the laboratory of seed technology of Yasouj university. Treatments were concluded: Pure vermicompost ...
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To study the germination of seeds of anise harvested from the mother plant under different fertilizer treatments experiment completely randomized design with 17 treatments and 4 replications was conducted in the laboratory of seed technology of Yasouj university. Treatments were concluded: Pure vermicompost (0, 5, 10 ton. ha-1) and bio fertilizers Azotobacter (Barvar-1), biological phosphorus (Barvar-2) and mixed of Barvar-1and Barvar-2, chemical nitrogen, bio fertilizers of nano and mixing treatments of vermicompost 2.5, 5, 7.5 tons. ha-1 with biological fertilizers Barvar-1, 2 and mixing of Barvar-1, 2. Results showed that the maximum α-Amylase activity was obtained by applying 7.5 tons. ha-1 vermicompost with Barvar-1, 2 and urea. The minimum values α-Amylase activity was obtained from the control treatment. The maximum percentage (92%) and rate (2.07 seed per day) of germination was belonged to the urea treatment. The maximum Seedling Length vigor index was observed in integrated treatment using organic fertilizers and biological value (9.73), showing no significant difference with urea fertilizer (9.71). Finally these results showed that the use of vermicompost and bio-fertilizers, particularly of 10 tons per hectare with the combined application of phosphate solubilizing bacteria and nitrogen stabilizer Could be as a alternative treatment for increase the absorption of nutrients such as nitrogen and phosphorus through seed germination, leading to an improvement of the germination index in anise plant.
