نتایج جستجو برای: durum wheat grain yield decreased from 15727 to 8948 gm2 with co2 enrichment

تعداد نتایج: 14216298  

امام, یحیی, موری , سعید, مقصودی, کبری , کریم‏زاده سورشجانی, هدایت الله ,

Drought stress is the most important factor restricting both growth and crop yield formation under arid and semi-arid conditions. In a field experiment, the effects of foliar application of growth regulators of auxin at three levels (0, 20 and 40 mg/L) and cytokinin at three levels (0, 50 and 70 µmol) at pollination stage on yield and yield components of a bread wheat (Shiraz cultivar) and duru...

Journal: :Computers and Electronics in Agriculture 2017
Kelly R. Thorp G. Wang Kevin F. Bronson M. Badaruddin J. Mon

While hyperspectral sensors describe plant canopy reflectance in greater detail than multispectral sensors, they also suffer from issues with data redundancy and spectral autocorrelation. Data mining techniques that extract relevant spectral features from hyperspectral data will aid the development of novel sensors for plant trait estimation. The objectives of this research were to (1) compare ...

اسماعیل زاده مقدم, محسن, بزرگی پور, رضا, خدارحمی, منوچهر, شریف تبار, محمد مهرداد ,

In order to determine grain yield stability and yield components in durum wheat, 49 genotypes from International Durum Yield Nursery (IDYN), received from International Research Center for Maize and Wheat Improvement (CIMMYT) with one cultivar as check, were studied in an alpha lattice design with two replications at five locations including Karaj, Darab, Neishabour, Khorramabd and Gonbad. Grai...

زین العابدین طهماسبی سروستانی, , عبدالله بحرانی, ,

Understanding the nitrogen remobilization by plant, in order to obtain cultivars with higher quality, has specific importance in plant physiology. In this experiment, a bread and a durum wheat cultivar, were treated with different rates and times of nitrogen application, by using split factorial on the basis of randomized complete block design with three replications at Shiraz region during 200...

ایمان زرین‌آبادی, , پرویز احسان‌زاده, ,

Despite its economic importance, not much information exists on growth and productivity of durum wheat in Iran and Isfahan. In order to evaluate growth, grain yield, and attributes in three durum wheat genotypes, Osta/Gata, Dipper-6, and PI40100, with five planting densities of 200, 275, 350, 425 and 500 seeds/m2, a four-replicate RCBD field study with a spilt-plot layout was carried out in win...

ژورنال: علوم آب و خاک 2007
زین العابدین طهماسبی سروستانی, , عبدالله بحرانی, ,

Understanding the nitrogen remobilization by plant, in order to obtain cultivars with higher quality, has specific importance in plant physiology. In this experiment, a bread and a durum wheat cultivar, were treated with different rates and times of nitrogen application, by using split factorial on the basis of randomized complete block design with three replications at Shiraz region during 200...

ژورنال: علوم آب و خاک 2004
ایمان زرین‌آبادی, , پرویز احسان‌زاده, ,

Despite its economic importance, not much information exists on growth and productivity of durum wheat in Iran and Isfahan. In order to evaluate growth, grain yield, and attributes in three durum wheat genotypes, Osta/Gata, Dipper-6, and PI40100, with five planting densities of 200, 275, 350, 425 and 500 seeds/m2, a four-replicate RCBD field study with a spilt-plot layout was carried out in win...

2008

We quantitatively evaluated the effects of elevated concentration of ozone (O3) on growth, leaf chemistry, gas exchange, grain yield, and grain quality relative to carbonfiltered air (CF) by means of meta-analysis of published data. Our database consisted of 53 peer-reviewed studies published between 1980 and 2007, taking into account wheat type, O3 fumigation method, rooting environment, O3 co...

Journal: :تولید گیاهان زراعی 0

the new cereal, primary tritipyrum lines, is an artificial hexaploeid wheat (2n=6x=42, aabbebeb) from crossing between triticum durum (2n=4x=28, aabb) and thinopyrum bessarabicum (2n=2x=14, ebeb) species. in this study the salt tolerant potencial of new primary tritipyrum lines for nacl (0, 100, 200 mm) in an hydroponic experiment was studied in a completely randomized split plot design with th...

Journal: :علوم گیاهان زراعی ایران 0
حمیدرضا بلوچی سید علی محمد مدرس ثانوی یحیی امام

drought, ultraviolet radiation and atmospheric co2 are some three environmental factors that seriously affect future food security. the objective followed in the present research was to study the effect of two levels of carbon dioxide (400 and 900 ppm), ultraviolet radiation (uv a, b and c with intensities of 18, 25 and 40 microw.cm-2 respectively) and water deficit (%100 and %60 of field capac...

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