نتایج جستجو برای: keshmeshi sefid
تعداد نتایج: 161 فیلتر نتایج به سال:
the investigation at water quality of kelaroud river by hfbi (hilsenhoff’s family–level biotic index) method. in this research task to the water quality of kelaroud river using biotic index hfbi and identifying the society of macroinvertebrates upon level of the family. result of this index with other index compared: ept/ chironomidae, .this task was achieved with in the year 1389-90 with takin...
به منظور بررسی اثرات تاریخ کاشت و سطوح تک آبیاری بر عملکرد ارقام مختلف گندم دیم، تحقیقی بر پایه طرح بلوک های کامل تصادفی و به صورت اسپلیت اسپلیت پلات در سه تکرار و به مدت دو سال زراعی (83–1381) در ایستگاه تحقیقات کشاورزی دیم، مراغه به اجراء در آمد. سه تاریخ کاشت (کرت اصلی) شامل: اوایل مهر، اواسط مهر و اواخر مهر، سه میزان تک آبیاری (کرت فرعی) شامل: بدون آبیاری (شرایط دیم)، تک آبیاری به میزان 50 ...
discrimination between gh-2 and gh-1 genes in rutilus kutum using sequencing and restriction enzymes
fish genome contains two copies of growth hormone (gh-1 and gh-2) as a result of duplication process during evolution. the aim of this study was to distinguish gh-1 from gh-2 genes in rutilus kutum (mahi sefid) from the caspian sea using sequencing techniques and application of specific restriction enzymes for these loci. for this purpose, five fish were randomly selected and samples for dna ex...
in this research, the bud and cane winter cold tolerance of 22 field-grown grapevine cultivars of kourdestan province agricultural and natural resources research and education center was evaluated at jan. and mar. stages in 2012. in these cultivars soluble carbohydrates and water content changes of buds and canes during dormant period also were measured. after exposure to different freezing tem...
this paper presents a total of 11 known crustacean parasite species from 51 host species belonging to 7 families, with 17 genera reported from cultured and wild fishes in three faunal regions of iran. among them, one belonging to branchiura order, namely argulus foliaceus, was found on capoeta capoeta in makoo reservoir as well as on cyprinus carpio, chalcalburnus sp., hypophthalmichthys molitr...
به منظور بررسی اثر تراکم های مختلف بر قدرت پنجه زنی ارقام گندم و همچنین تعیین مناسب ترین میزان بذر در ارقام گندم با قابلیت توان پنجه زنی متفاوت، این تحقیق با چهار میزان بذر 250، 350، 450 و 550 بذر در مترمربع و شش رقم گندم شامل سه ژنوتیپv1=azar2 ، v2=10ghazagestan98-99 و v3=kiraj/87-zhong291 به ترتیب با قدرت پنجه زنی زیاد، متوسط و کم و سه ژنوتیپv4=885k1.1//1d13.1/mlt/3/ye2453 ، v5=gun91/karl و v...
به منظور بررسی اثر تراکم های مختلف بر قدرت پنجه زنی ارقام گندم و همچنین تعیین مناسب ترین میزان بذر در ارقام گندم با قابلیت توان پنجه زنی متفاوت، این تحقیق با چهار میزان بذر 250، 350، 450 و 550 بذر در مترمربع و شش رقم گندم شامل سه ژنوتیپV1=Azar2 ، V2=10Ghazagestan98-99 و V3=Kiraj/87-zhong291 به ترتیب با قدرت پنجه زنی زیاد، متوسط و کم و سه ژنوتیپV4=885K1.1//1D13.1/MLT/3/YE2453 ، V5=Gun91/Karl و V...
Linkages in geographical spaces representing a region is not just a functional system which has been formed by various settlements. It rather takes its power from social, economic and physical networks and their interactions which means it is controlled by aforementioned networks. Therefore, there are always rural area and urban area with some relations or linkages. In this regard, relation mos...
1- Introduction Landslide refers to geomorphologic processes and downward movements of the materials of the slopes, including rock, dirt, or a mixture of them (Moradi et al, 2012).Landslides are affected by various factors, including rainstorms, earthquake shocks, changes in the level of underwater, storms, rapid erosion and a series of factors reducing the strength of materials (Dai et a...
Classifying daily climate circulation patterns has always been considered by climatologists. Investigating climate changes such as rainfall and the temperature in a same single time and place suggests that these changes are strongly influenced by atmospheric circulation patterns. Regarding so, climate changes, known as variables here, such as rainfall, temperature, and other related phenomen...
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