نتایج جستجو برای: 10 leaf stage or about six weeks after planting
تعداد نتایج: 5838553 فیلتر نتایج به سال:
Effect of different times and levels of nitrogen fertilizer application on growth and grain yield of spring wheat cultivar “Ghods” was studied during 1993-1994 growing season at Karkadj, Agricultural Experiment Station, College of Agriculture, University of Tabriz, using a split plot design with three replications. Main plots were assigned to five levels of N fertilizers (0, 40, 80, 120 and 160...
مطالعه روابط رگرسیونی شاخصهای فیزیولوژیکی برنج در مراحل مختلف رشد در شرایط آب و هوایی استان خوزستان
This study aimed to investigate the relationship between morphophysiological and phenology traits with grain yield to determine the best indices of direct and indirect selection in the field of genetic improvement of aerobic rice grain yield in Khuzestan province with 12 aerobic rice genotypes. The traits such as include the grain yield as the dependent variable and total dry matter, panicle we...
In order to investigate the effects of plant density, time and number of weed control on yield and yield components on corn hybrids, a factorial experiment in completely randomized blocks design with 3 replications was conducted in 2011 growth season at Research farm of College of Agriculture, University of Shahid Bahonar, Kerman. Weed control treatments were including: weed control during corn...
Experiments were conducted to determine the relationship between time of infection by Heterodera glycines and soybean growth in the greenhouse and yield of plants grown in the field. Soybean cultivar Essex seedlings growing in the greenhouse were inoculated with H. glycines at 2, 4, or 6 weeks after planting. Seedling growth was inhibited by H. glycines infection at 2 or 4 weeks after planting ...
This experiment was conducted as factorial split plot in randomized complete block design with three replications for two years (2015-2016 and 2016-2017) in Karaj region. Irrigation includes regular irrigation (irrigation after 80 mm evaporation from Class A evaporation pan) and irrigation-off from the silique stage onwards in the main plots and planting date including the 5th of October and th...
in order to evaluate the interference effect natural population weeds and plant density, an experiment with randomized complete block design in factorial arrangement with 4 replications was conducted in 2006 in a field experiment at ramin agricultural and natural resources university, khouzestan. treatments included two factor, plant density of corn at three levels (4, 7 and 10 plants m-2) and ...
supplementary irrigation is one of the most effective field management practices to improve water productivity and crop yield in rainfed conditions. time of supplementary irrigation is another important parameter affecting the enhancement of yield. in order to study the effect of supplementary irrigation time as well as planting date, two factors, namely: 1) supplementary irrigation (no irrigat...
determination of chlorophyll content and chlorophyll fluorescence has the potential needed to analyze the efficiency of photosynthesis in plants against environmental stresses, especially salinity, and its simplicity facilitates stress evaluation. in order to study the response of different photosynthetic characters to salinity stress at different sugar beet growth stages, two separate experime...
Background and purpose: Aerobic exercise has been recommended as an important strategy for management of cardiovascular diseases and endocrine-metabolic disorders. The aim of this study was to evaluate the effect of 6-weeks aerobic exercise training on oxidative stress and enzymatic antioxidants in postmenopausal women with hypertension. Materials and methods: In a quasi-experimental study, 20...
a field study was conducted to evaluate the effect of haloxyfop-r-methyl ester doses in different grass weeds in various growing stages in safflower during 2011-2012 growing season in research farm of college of agriculture, shiraz university. the study was carried our as split split plot based on randomized complete block design with three replicates. the main factor, sub factor and sub sub fa...
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