S. Hasan Hosseini; Mohammad Rafiee; Rahim Barzegar
Abstract
Peat is the most important source of casing soil for growing mushroom. Peat often imported or derived from wetlands which have unfavorable environmental impacts. In order to evaluate the effects of the replacing vermicompost and perlite as casing soil instead of peat on growth and yield of the mushrooms ...
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Peat is the most important source of casing soil for growing mushroom. Peat often imported or derived from wetlands which have unfavorable environmental impacts. In order to evaluate the effects of the replacing vermicompost and perlite as casing soil instead of peat on growth and yield of the mushrooms (Agaricus bisporus), a factorial experiment was conducted on the randomized complete block design with three replications at Kosar mushroom farm in winter, 2015. Ten treatments in different ratios (volume percentage) of perlite: vermicompost: peat including T1 (0: 0: 100) T2: (0: 25: 75) T3: (12.5: 12.5: 75) T4: (16.7: 33.3: 50) T5 (25: 25: 50) T6: (18.5: 56.5: 25) T7 (25: 50: 25) T8: (37.5: 37.5: 25) T9: (33.3: 0: 66.7) T10 (50: 50: 0) were used. The maximum yield was obtained with T3 treatment with the average of 14.72 kg /m2 and the minimum yield was observed in T10 treatment with 9.43 kg/m2. The maximum and minimum numbers of harvested mushrooms were observed in treatment of T3 with 547 numbers and the treatment of T10 with the number of 244.67, respectively. For cap diameter, the treatment of T10 with an average of 5.9 cm had the maximum and the treatment of T9 with an average of 4.8 cm had the minimum cap diameter. For the average weight of individual mushroom, treatments of T10 and T3 with the average of 38 and 26 gr had the maximum and minimum weight of each mushroom, respectively. The results showed that T3 soil casing combination (12.5: 12.5: 75) can be replaced for peat.
Leila Mohammadi; Saeed Rizi; Abdorrahman Mohammadkhani; Rahim Barzegar
Abstract
To evaluate the effect of slow release fertilizer and humic acid on quality of New Guinea Impatiens (Impatiens hawkeri), an experiment established in complete random design with 15 treatments and three replications. Treatments were slow release fertilizer (12-11-18-2.7MgO-8S) in five levels (0, 1.5, ...
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To evaluate the effect of slow release fertilizer and humic acid on quality of New Guinea Impatiens (Impatiens hawkeri), an experiment established in complete random design with 15 treatments and three replications. Treatments were slow release fertilizer (12-11-18-2.7MgO-8S) in five levels (0, 1.5, 3, 4.5 and 6 kg/m3) and humic acid in three levels (0, 2 and 4 kg/m3) that mixed with medium culture. The substrate medium was included 50 percecnt of peat moss, 40 percent of perlite and 10 percent of rice husk (v/v). Five months after seeding, results showed the most flower number (20 number) in 6 kg/m3 mixed with 2 kg/m3 of humic acid, and the most leaf number (122 number) in 3 kg/m3 of slow release fertilizer treatments. The slow release fertilizer treatment showed a positive significant effect in all traits. Also, humic acid had a positive significant effect on plant height, leaf and shoot number, leaf area, total chlorophyll, shoot fresh weight, flower diameter, flower life and flower number. Considering that, humic acid in 2-4 kg/m3 and slow release fertilizer in 3-4.5 kg/m3 could be recommended for New Guinea Impatiens cultivation.
Maryam Kosravi; Saeed Rizi; Rahim Barzegar; Gholam Reza Rabiei
Abstract
AbstractIn order to evaluate the effect of vermicompost and humic acid on quantitative and qualitative traits of sod turf, a factorial experiment based on completely randomized design with three replications was established in research farm in Shahrekord University. Treatments were vermicompost (zero, ...
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AbstractIn order to evaluate the effect of vermicompost and humic acid on quantitative and qualitative traits of sod turf, a factorial experiment based on completely randomized design with three replications was established in research farm in Shahrekord University. Treatments were vermicompost (zero, 5, 10 and 15 v/v percent) and humic acid (zero, 150 and 250 g/m2), respectively. Some traits such as shoot nitrogen and phosphorus content, shoot height, shoot dry and wet weight, total root length, root fresh and dry weight and root dry weight were evaluated. The results showed that the application of vermicompost and humic acid had a positive significant effect on shoot dry weight, sod root dry weight, total dry weight of roots, fresh weight of root, shoot nitrogen and phosphorous content compared to control. The vermicompost in 15% v/v and humic acid in 150 g/m2 treatments had the most positive effect on measured traits and increased nitrogen (25.4 percent), phosphorous (39.6 percent) content, shoot dry weight (49.7 percent), root weight (83.3 percent), total root dry weight (215 percent) and sod root dry weight (204 percent). In this research application of vermicompost and humic acid increased uptake of nitrogen and phosphorus and it increased the sod quality.
Safoura Kazemi; Rahim Barzegar; Abd-Alrahman Mohammadkhani
Abstract
The present investigation was carried out to evaluate the effect of vermivash on yield and leaf nutrient status of strawberry "Govieta" at research greenhouse of Shahrekord University in 2013. Treatments were included control (without vermiwash foliar spray) and different concentration of vermiwash (10, ...
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The present investigation was carried out to evaluate the effect of vermivash on yield and leaf nutrient status of strawberry "Govieta" at research greenhouse of Shahrekord University in 2013. Treatments were included control (without vermiwash foliar spray) and different concentration of vermiwash (10, 15 and 25 percent) that spryed at 1, 2 and 3 weeks interval. Vermiwash was extracted from cow manure vermicompost through earthworm Eisenia foetida. The experiment was conducted in completely randomized design (CRD) with three replications. The results showed that there was significant difference between vermiwash treatments and control for the leaf elements of N, K and Fe, but was not significant for the other macro and microelements. Leaf Fe concentration increased up to excessive level in 25 percent concentration with weekly interval. Foliar spray of 25, 15 and 10 percent vermiwash with two-weeks intervals considerably enhanced the number of fruit and yield per plant, but decreaced fruit weigth average a little. Increasing the yield per plant ranged between 24 and 68g for various vermiwash treatments in comparison with control. Vermiwash treatments had no effect on inflorescence number per plant and flower number per inflorescence. Foliar spray of 15 and 10 percent vermiwash with two-weeks interval improved the yield of strawberry "Govita".
Leila Mohammadi; Saeed Rizi; Rahim Barzegar
Abstract
To evaluate the effect of arbuscular mycorrhiza (Glomus mosseae) under salt stress on physiological and some nutrient absorption in New Guinea Impatiens (Impatiens hawkeri), an experiment established in complete random design with three replications (three pots for each replication) in greenhouse in ...
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To evaluate the effect of arbuscular mycorrhiza (Glomus mosseae) under salt stress on physiological and some nutrient absorption in New Guinea Impatiens (Impatiens hawkeri), an experiment established in complete random design with three replications (three pots for each replication) in greenhouse in Shahrekord University in 2014. Treatments were inoculation of substrate with three levels of arbuscular mycorrhiza (0, 8 and 16 percent, v/v) and sodium chloride (0, 15 and 30 Mm). The substrate medium was included 50 percecnt of peat moss, 40 percent of perlite and 10 percent of rice husk (v/v). The mycorrhizal inoculation done with transplanting and salt stress treatment was applied with irrigation water after stablishment of transplants. Some traits such as nitrogen, phosphorous, potassium, sodium and proline content, dry and fresh root weight and root colonization percentage were evaluated. The results showed that 16 percent of mycorrhiza treatment had significant effect on nitrogen (2.31 percent) and phosphorous (0.339 percent) and it’s interaction with 30 Mm of salt stress had significant effect on proline content (0.754 micromol/gfw) and root colonization (35 percent) percentage. Based on this research the difference between mycorrhiza treated plants and other treatments was significant and it seems that the application of mycorrhiza in medium, can increase salt tolerance in New Guinea Impatiens by effect on some physiological traits.
Rahim Barzegar
Abstract
Landraces are a valuable source of genetic diversity for varietal improvement. Despite, Iran is the fifth squash and pumpkin producer, but no available information exists about the diversity of summer squash landraces. In order to evaluation of floral and fruit production characteristics among four Iranian ...
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Landraces are a valuable source of genetic diversity for varietal improvement. Despite, Iran is the fifth squash and pumpkin producer, but no available information exists about the diversity of summer squash landraces. In order to evaluation of floral and fruit production characteristics among four Iranian summer squash and a check cultivar of F1 hybrid ‘Asma’, an experiment was conducted in a randomized complete block design (RCBD) with three replications. Each plot had four tagged sample plants of one accession. The results were demonstrated significantly substantial differences for number of node, node position to first female, number of female flower, female/male flower, number of harvested fruit from main stem, number of lateral branch/plant, number of harvested fruit from branches/plant and total harvested fruit/plant traits in studied accessions. Number of female flower ranged from a minimum of 8 to a maximum of 18. It was resulting to a broad variability in number of harvested fruit from main stem (5.2-12). There was a significant difference between Iranian landraces and check cultivar for floral and fruit production characteristics. Growth habit and number of female flower were two main factors that influenced fruit production/plant variability.