• List of Articles winter wheat

      • Open Access Article

        1 - Temporal variations of soil moisture in relation to precipitation and temperature under fallow and planted conditions in rainfed land
        uones mazllom Aliabadi alireza vaezi jeafar nikbakht
        Soil moisture (SM) is the major factor controlling plant growth particularly in rainfed lands. It varies due to the change of climatic parameters such as precipitation and air temperature and evaporation. This study was conducted to found climatic factor influencing soi More
        Soil moisture (SM) is the major factor controlling plant growth particularly in rainfed lands. It varies due to the change of climatic parameters such as precipitation and air temperature and evaporation. This study was conducted to found climatic factor influencing soil moisture under rainfed conditions. A field experiment with two cultivated conditions: under fallow and cultivated with winter wheat was designed in a rainfed land with 10% slope steepness in the University of Zanjan during growth period from 2016 to 2017. Toward this, six plant plots with 2m × 5m dimensions were installed along the slope orientation similar to conventional tillage method in the area. Volumetric soil moisture was measured in 7-day interval using TDR model IDRG SMS-T2 set during growth period Climatic variables including air temperature (AT) and precipitation (P) along with soil temperature (ST) were determined during growth period. Based on the results, SM in cultivated plots was about 11% less than the follow plots, and this difference was statistically significant between the two. Amount of soil moisture significantly varied among different months (p<0.001). Significant correlations were found between SM and P, AT and ST in the two cultivation conditions (p<0.05). Higher dependency of SM on AT (r=0.44) and ST (r=0.51) was observed in fallow plots as compared to planted plots. This study revealed that ST is the most effective property controlling SM in fallow and planted lands in the area. Manuscript profile
      • Open Access Article

        2 - Ground beetles (Coleoptera, Carabidae) collected in winter wheat fields of the western Azerbaijan
        G. Gahramanova
        Five subspecies and 12 species of carabid beetles (Carabidae) belonging to 11 genera and 6 subfamilies were found during 2006-2010 in west of Azerbaijan. Harpalus froelichii Sturm, 1818, Dixus obscurus Dejean, 1825, Scarites cylindronotus Faldermann, 1836, Sphodrus leuc More
        Five subspecies and 12 species of carabid beetles (Carabidae) belonging to 11 genera and 6 subfamilies were found during 2006-2010 in west of Azerbaijan. Harpalus froelichii Sturm, 1818, Dixus obscurus Dejean, 1825, Scarites cylindronotus Faldermann, 1836, Sphodrus leucophthalmus Linnaeus, 1758, Calathus longicollis Motschulsky, 1865 were new records. Five subspecies new for the fauna of Azerbaijan are Zabrus tenebrioides longulus Reiche & Saulcy, 1855, Z.morio morio Ménetries, 1832, Cryptophonus melancholicus melancholicus Dejean, 1829, Calathus ambiguus ambiguus (Paykull, 1790), Nebria picicornis luteipes Chaudoir, 1850. Manuscript profile
      • Open Access Article

        3 - Effect of Sowing Date on Some Agronomic Characteristics and Seed Yield of Winter Wheat Cultivars
        A. Ganbari H. Roshani A. Tavassoli
        To evaluate the effect of sowing dates on yield, yield components and some agronomic characteristics of four winter wheat cultivars and also their phenological changes, a factorial experiment based on randomized complete block design with three replications was carried More
        To evaluate the effect of sowing dates on yield, yield components and some agronomic characteristics of four winter wheat cultivars and also their phenological changes, a factorial experiment based on randomized complete block design with three replications was carried out at the Agriculture Research Station of Ardabil (Iran) during 2009 growing season. First factor consisted of four wheat cultivars (Azar2, Sabalan, Sardari and Zagros) and second factor consisted of four sowing dates (1st, 10th, 20th and 30th of September). The results showed that sowing date had significant effect on the number of spikes, the number of seed per spike, 1000-seed weight, germination percentage, days to spike appearance, days to ripening, growing degree days, biological yield, seed yield and harvest index. The highest and lowest seed yields of wheat were obtained from sowing date of the September the first (4616 kg/ha) and sowing date of September 30th (2197 kg/ha) respectively. Delaying planting decreased the number of spikes per m2 and 1000-seed weight. Cultivars had significant effect on all of the traits measured, except leaf number, fertile and non-fertilie tillers. The highest and the lowest seed yields were obtained from Sabalan (4750 kg/ha) and Zagros (2757 kg/ha) cultivars respectively. Interaction of sowing date and cultivar were significant on all of traits measured, except stem height, the leaf number, the number of spikes, 1000-seed weight and seed yield (P<%1). On the whole, it can be concluded that the first sowing date (September the first) and Sabalan can be recommended to the farmers of Ardabil region and similar climatic conditions for higher yields. Manuscript profile
      • Open Access Article

        4 - Evaluation of the Effects of Some Mrphophysiolocal Traits on Seed Yield of Winter Wheat Genotypes
        Babak Hooshmandi Vrahram Rashidi
        To evaluate the effects of some morphologic and physiologic traits on seed yield of 15 winter wheat genotypes and landraces an experiment on the basis of randomized complete block design with four replications was conducted at the Agricultural Research Field of Islamic More
        To evaluate the effects of some morphologic and physiologic traits on seed yield of 15 winter wheat genotypes and landraces an experiment on the basis of randomized complete block design with four replications was conducted at the Agricultural Research Field of Islamic Azad University of Tabriz branch in 2012-2013. Analysis of variance showed that traits like plant height, peduncle length, spike length, number of kernel spike, spike density, number of unfertile tiller, 1000 kernel weight, seed yield, harvest index, biological yield and relative water content of flag leaf were significant It was also indicated that kernel no. per spike, spike density, fertile tiller no., 1000 kernel weight, harvest index and biological yield were positively correlated with seed yields. Results of path analysis also showed that the direct effect of harvest index and relative water content of flag leaf on grain yield were positive but the direct effect of spike length on grain yield was negative. Cluster analysis of WARD method, divided genotypes into two groups. The results also specified that genotypes 7, 4 and 13 were higher seed yielder than other genotypes.  Manuscript profile
      • Open Access Article

        5 - The Effects of Different Application Times of Broadleaf Herbicides on Winter Wheat
        SAYED KOMEIL SAYED SHOURBALAL LIDA HASHEMI