a study of genetic structure of rutilus frisii kutum in anzali lagoon, using microsatellite markers

نویسندگان

s. rezvani gilkolaei

s. l. kavan

r. safari

چکیده

mechanical damage due to harvesting, handling, and other processes is an important factor that affects the seeds quality. seed damage results in lower grain value and more storability problem and reduces seed germination and seedling vigor and subsequent yield of crops. tests were conducted to determine the percentage of physical damage (ppd) and percentage of loss in germination (plg) of wheat seeds due to impact. the effect of wheat seed cultivar and impact velocity was determined. wheat seed cultivars selected for testing included: kohdasht, maron, simereh, sardari and zagros. four impact velocities: 10, 20, 30 and 40 m s-1 were used. results showed that effects of impact velocity and seed cultivar on seed damages were significant. ppd to seeds was higher than plg in higher impact velocities. it found that the total damage of seeds increased from 4.17% (0.48 ppd and 3.68 plg) to 73.32 % (47.59 ppd and 25.73 plg) as impact velocity increased from 10 to 40 m s-1 for all wheat cultivars studied. impact results indicated that sardari wheat cultivar was more susceptible to ppd (27.39 %), while maron seeds were more susceptible to plg (14.70%). among the cultivars studied, sardari wheat seeds showed the highest level of total damage i.e.sum of ppd and plg.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Population structure of Rutilus frisii kutum in Iranian Coastline of the Caspian Sea using microsatellite markers

Kutum is considered as one of the anadramous species of the Caspian Sea. Due to continuous population decline of the fish since 1975, Iranian fisheries organization started to restock this species. Nowadays, there is growing concern over the effects of restocking on natural populations. For this purpose, population structure and genetic variation of this species in the Iranian coastline of Casp...

متن کامل

population structure of rutilus frisii kutum in iranian coastline of the caspian sea using microsatellite markers

kutum is considered as one of the anadramous species of the caspian sea. due to continuous population decline of the fish since 1975, iranian fisheries organization started to restock this species. nowadays, there is growing concern over the effects of restocking on natural populations. for this purpose, population structure and genetic variation of this species in the iranian coastline of casp...

متن کامل

The Pathological study of gastro intestinal Aspidogaster limacoides Diesing, of the Caspian Sea kutum fish Rutilus frisii kutum (Kamenskii, 1901)

Caspian sea is a land–locked brackish water lake where zoologically characterized by various aquatic animals aquatic animals and different commercially important fish species Shariati [15]. The fishes in the Caspian Sea and its watershed areas include 78 species, and 49 subspecies which belong to 16 fish family. The bulk of Caspian Sea fishes are anadromos and the major commercially important f...

متن کامل

Effect of copper sulfate on the survival and growth performance of Caspian Sea kutum, Rutilus frisii kutum

The aim of present study was to determine the LC50/96 h value of copper sulfate and determine the growth performance of Caspian Sea kutum) Rutilus frisii kutum (fingerlings during 60-days sub-lethal copper (Cu). After acclimation period to two weeks, for determine the LC50/96 h value, total of 27 aquarium with a capacity of 60 L each stocked with 10 fishes an aquarium. Tunney four aquarium and ...

متن کامل

Growth Rate, Proximate Composition and Fatty Acid Profile of Juvenile kutum Rutilus frisii kutum Under Light/Dark Cycles

This study investigated the growth rate, proximate composition, and fatty acid profile in juvenile of kutum Rutilus frisii kutum in different dark-light cycles. Fish were stocked randomly in eighteen 2000-L fiberglass tanks and received six photoperiod regimes: natural photoperiod, 24L (light):0D (day), 16L:8D, 12L:12D, 8L:16D and 0L:24D. Application of continuous dark (0L:24D) and an intermedi...

متن کامل

A Study of Genetic Diversity of Common Buzzard (Buteo buteo) from Iran Using Microsatellite Markers

The common buzzard (Buteo buteo) is a bird of prey with Eurasia distribution. Buteo buteo from Iran, has an important role in the ecological cycle of the north and the northwest parts of Iran, now is suffering from illegal hunting. Blood samples from 50 Buteo buteo birds from rehabilitation center of Pardisan Park, Tehran, Iran were taken to evaluate and study the gen...

متن کامل

منابع من

با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید


عنوان ژورنال:
journal of agricultural science and technology

ناشر: tarbiat modares university

ISSN 1680-7073

دوره 14

شماره 2 2011

میزبانی شده توسط پلتفرم ابری doprax.com

copyright © 2015-2023