Faezeh Chehrehnoorani; Rahdari Parvaneh; Marefat Mostafavi Rad; Mahmoud Asadi; Shadi Kiabi
Abstract
Objective: In order to evaluate the foliar application of Ca and Zn fertilizers on seed and fatty acids composition of peanut oil (cv. NC2), an experiment was conducted at the Agricultural and Natural Resources Research and Education Center of Guilan Province, Rasht, Iran, during 2018 and 2019 cropping ...
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Objective: In order to evaluate the foliar application of Ca and Zn fertilizers on seed and fatty acids composition of peanut oil (cv. NC2), an experiment was conducted at the Agricultural and Natural Resources Research and Education Center of Guilan Province, Rasht, Iran, during 2018 and 2019 cropping seasons.Methods: This experiment was carried out as a split plot based on randomized complete block design with three replications. Four levels of Zn fertilizer sources, including without Zn application (as control), nano-chelated Zn fertilizer, Zn-EDTA, and Zn sulfate were considered as the main plot and four levels of Ca fertilizer sources, including nano-chelated Ca fertilizer, Ca-EDTA, Ca-chloride and, Ca-nitrate were considered as the sub plot.Results: Foliar application of fertilizers was done before the flowering stage and then repeated with 30-days intervals. The highest seed yield (2790 kg/ha), biological yield (9303 kg/ha), seed oil content (52.3 percent), oil yield (1625 kg/ha), protein yield (673 kg/ha), and oleic unsaturated fatty acid (57.3 percent) was obtained under simultaneous foliar application of Ca and Zn nano-fertilizers and increased the parameters by 29.8, 17.5, 13.4, 38.3, 24.4 and 19.2 percent in comparison to control treatment, respectively.Conclusion: Application of Zn and Ca nano-chelated fertilizers as foliar sprays improved seed and oil yield of peanut under the local conditions. Hence, the Zn and Ca nano-chelated fertilizers could be recommended to enhance the quantitative and qualitative yield of peanut.
Hamed Hassanzadeh Khankahdani; Mashhid Henareh Ashkesoo; Seyedeh Somayyeh Shafiei-Masouleh; Mohammad Javad Zamani
Abstract
Based on the nutrition importance of nut squash seed and its commercial value, an experiment has been conducted in randomized complete block design with 30 squash landraces collected from West Azerbaiejan, Golestan, and Isfahan Provinces with three replications at Minab Agricultural Research Station ...
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Based on the nutrition importance of nut squash seed and its commercial value, an experiment has been conducted in randomized complete block design with 30 squash landraces collected from West Azerbaiejan, Golestan, and Isfahan Provinces with three replications at Minab Agricultural Research Station during 2018-2019 and 2019-2020. It tried to compare seed yield and yield components of different nut squash genotypes in autumn planting time of Hormozgan Province. The field was prepared in August and the seeds were sown in late September. The evaluated characteristics included plant length, the number of fruit in the plant, average fruit weight, fruit length and width, fruit yield, seed yield, the weight of 100 seeds, hollow seed percent, kernel percent (kernel/seed ratio), and seed bitterness percent. According to the results of the important traits such as seed yield, seed size, hollow seed percent as well as kernel percent, the genotypes Kh6, Kh5, CP7-A, Kh2 selected CP3, CP4-B self, CP7-B self, Isfahan Pumpkin, CP4-E, O6, CP2-B, and N2 have had more suitable status than others. By evaluating all examined parameters and based on the production costs and net profit, there is the possibility of nut squash planting in Minab region with some genotypes including the collected genotypes from Khoi region including Kh6, Kh5; the genotypes in Golestan province including CP7-A, CP7-B-Self, CP4-E, and CP2-B; Isfahan Pumpkin.
Ali Shayanfar; Farshid Ghaderifar; Rahmatollah Behmaram; Afshin Soltani; Hamidreza Sadeghipour
Abstract
Secondary seed dormancy is known as the major reason for seed persistence of canola (Brassica napusL). Volunteer’s rapeseeds emerging from the soil seed bank can lead to unwanted gene dispersal to other plants after breaking secondary seed dormancy. At the current study, secondary dormancy was ...
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Secondary seed dormancy is known as the major reason for seed persistence of canola (Brassica napusL). Volunteer’s rapeseeds emerging from the soil seed bank can lead to unwanted gene dispersal to other plants after breaking secondary seed dormancy. At the current study, secondary dormancy was induced in 41 lines and 5 cultivars of canola under laboratory condition with using polyethylene glycol 6000, during 14 days and secondary seed dormancy recorded. This study was conducted as a randomized complete design. High germination percentage was observed at the all lines and cultivars (higher than 94%), and they were classified at five groups included very low, low, medium, high and very high secondary dormancy using cluster analysis. Among different lines, five genotypes were included at the very low group and two genotypes were included at the very high group. The other lines were placed in average and low groups. It was observed that five varieties (RGS003, Zarfam, Hyola401, Hyola308 and Hyola50) had average secondary dormancy (40-60%) that was related to breeding ignorance about secondary dormancy during seed production process. Lines classification based on different levels of secondary dormancy helps seed producers to select lines with low levels of secondary dormancy along with high yield and other characteristics, in order to deal with problems in seed producing process.
Gholamhasan Movahed; Nهئش Ahmadi; Ahmad Moieni; Amin Nasiri
Abstract
In order to evaluate self and cross-incompatibility in two ecotypes of Damask rose (Rosa damascena Mill.), this experiment was performed based on randomized complete block design (RCBD) with four replications at the research field of Tarbiat Modares University in 2012-2013. In this ...
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In order to evaluate self and cross-incompatibility in two ecotypes of Damask rose (Rosa damascena Mill.), this experiment was performed based on randomized complete block design (RCBD) with four replications at the research field of Tarbiat Modares University in 2012-2013. In this experiment, twice pollinations were performed 24-hour interval, after doing in vitro testing pollen grain germination. Pollens collected from Kashan and Azaran ecotypes and Dog rose (Rosa canina) were applied as pollinizer for self- and cross-artificial pollination on both ecotypes. Determination of self and cross incompatibility were conducted with two methods of field controlled pollination and microscopic studies. Results obtained from percentage of hip development, hip weight and length, as well as seed production per hip showed that cross pollination with Dog rose pollen had the highest compatibility, comparing to pollen of Kashan and Azaran ecotypes that showed incompatibility. Also, twice pollinations had better result in comparison to one-time pollination. Field results were supported by microscopic studies based on growing pollen tube in style. According to growing pollen tube in style, just pollen tube of Dog rose could get to end of style. The concentration of acid boric (50 mg/kg) showed the highest pollen germination after 24 h, while 200 mg/kg acid boric increased pollen tube growth. According to the present results, selection of suitable pollinizer and repetition of pollination were important factors affecting Damask rose crossing, as twice controlled cross pollination by Dog rose pollen had most appropriate results on hip characteristics.