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.