In this paper trends of precipitation and stream flow are analyzed in the Atrak River basin in the North Khorasan province. Normal score linear regression, Mann-Kendall, and Seasonal Kendall trend tests were adopted. Three precipitation variables and two stream flow variables including total precipitation, maximum daily precipitation, and number of rainy days, mean discharge and peak discharge ...

the short arm of rye (secale cereale l.) chromosome 1 (1rs), besides being part of the rye genome, is present in many hundred wheat cultivars as either 1rs.1bl or 1rs.1dl wheat-rye translocation. in this study, the distribution of the wheat–rye translocation was examined in 33 iranian winter and spring wheat cultivars, nine of which had a known donor of 1rs.1bl translocation and the other 24 we...

this experiment was conducted to quantify leaf production and senescence in wheat. the experiment was carried out at research farm of the gorgan university of agricultural sciences and natural resources, gorgan, iran in 2005 using a randomized complete design considering sowing dates as environment. treatments were sowing date (14 december, 20 jan and 21 feb, 2005) and cultivars (aria, atrak, k...

in order to study the effect of planting date on duration of phenological periods in wheat cultivars, a randomized compelet block design experiment with four replications was conducted in gorgan university of agricultural science and natural resources research station. the factors were eight sowing dates (14 december, 20 january, 18 february, 20 march, 16 april, 21 may, 30 july and 6 august) an...

introduction flood is one of the most common natural hazards that are considered as a phenomenon, causing loss of lives and public property and bringing untold misery to the people, especially those in the rural areas. there is also a larger economic impact, as they derail economic activities, thus affecting growth. over the years, several expert committees have studied the problems caused by f...