نتایج جستجو برای: khazar
تعداد نتایج: 177 فیلتر نتایج به سال:
Salinity is an important limiting factor in the production of more plants, including rice. Due to the limited amount of cultivated area, identification of tolerant genotypes to environmental stresses and especially salinity is very important. The aim of this study was to investigate the genetic diversity among 114 recombinant lines derived from the intersection of local Tarom × Khazar cultivars...
In this paper, the peak ground acceleration (PGA) over the bedrock is calculated by a probabilistic and deterministic seismic hazard assessment. An active fault map of the region is prepared. For this purpose, all active faults in a radius of 100 km from Amol city center are recognized and their seismic and rapture parameters are determined. Afterwards, for seismic hazard analysis, the seismic ...
rice sheath blight disease caused by rhizoctonia solani ag1- ia is the secondeconomically important disease of the crop in most rice- growing regions of the world,including northern of iran. the disease is mainly controlled through application of fungicides.the present study was performed to identify the candidate cultivar (cultivars) as source ofresistance to the pathogen in rice field conditi...
1. introduction nowadays, remote sensing is considered as an important subject in many field studies, like agronomy, hydrogeology, mineral exploration, geography and geology. this knowledge has been applied in most of the geological fields. the significant application of remote sensing is preparation of lineament maps that is an important issue in the geological studies. in the remote sensing s...
sheath blight disease, caused by rhizoctonia solani ag-1 ia, is one of the most serious fungal diseases of rice, worldwide. rice resistance is a relative phenomenon and disease response varied (due to complex quantitative inheritance and high environmental diversity), so an accurate disease assessment would be difficult. to detect a reliable reaction of rice in a high level of disease developme...
to study the population structure of gibberella fujikuroi species complex, the causal agent of rice foot rot, samples were taken from different rice growing regions of guilan province in 2004. among fourty-one isolates recovered from different cultivars; three isolates did not produce microconidial chain. in order to study the sexual fertility and determine the mating type as well as mating pop...
در این تحقیق 98 ژنوتیپ داخلی و خارجی برنج از نظر مقاومت به کرم ساقهخوار نواری برنج، Chilo suppressalis، در شرایط مزرعهای در مؤسسه تحقیقات برنج در مازندران-آمل غربال شدند. آزمایش در قالب طرح بلوکهای کامل تصادفی در 3 تکرار انجام شد. در مرحلهی زایشی گیاه برنج از هر کرت 5 بوته بهطور تصادفی انتخاب و کفبر شدند. سپس درصد خوشههای سفید شده، تعداد لارو بر بوته، ارتفاع بوته، قطر ساقه و تعداد ساقه د...
Six Iranian rice cultivars (Binam, Domsiyah, Shahpasand, Sepidrud, Khazar and Valed 46) were crossed in 1989 in the Iranian Rice Research Institute in Rasht, Iran in a full-diallel design. The F1 progenies together with parents were transplanted in a CRBD in the 5 x 0.75 m plots at plant density of 25 x 25 cm (60 plantlets per plot) in 3 replications. Part of this research was published in 1994...
Six Iranian rice cultivars (Binam, Domsiyah, Shahpasand, Sepidrud, Khazar and Valed 46) were crossed in 1989 in the Iranian Rice Research Institute in Rasht, Iran in a full-diallel design. The F1 progenies together with parents were transplanted in a CRBD in the 5 x 0.75 m plots at plant density of 25 x 25 cm (60 plantlets per plot) in 3 replications. Part of this research was published in 1994...
در این تحقیق 98 ژنوتیپ داخلی و خارجی برنج از نظر مقاومت به کرم ساقهخوار نواری برنج، chilo suppressalis، در شرایط مزرعهای در مؤسسه تحقیقات برنج در مازندران-آمل غربال شدند. آزمایش در قالب طرح بلوکهای کامل تصادفی در 3 تکرار انجام شد. در مرحلهی زایشی گیاه برنج از هر کرت 5 بوته بهطور تصادفی انتخاب و کفبر شدند. سپس درصد خوشههای سفید شده، تعداد لارو بر بوته، ارتفاع بوته، قطر ساقه و تعداد ساقه د...
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