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

تعداد نتایج: 14216298  

2009
Rojalin Tripathy A. K. Singh

Temperature and CO2 are two important parameters related to climate change, which affect crop yield. In this study, an attempt has been made to assess the impact of these two factors on the productivity of the four major cereal food crops (wheat, rice, maize and pearl millet) taking New Delhi as study area. This study also aims at identifying the most sensitive growth phase of these crops to th...

2006
Genevieve Walton A. GUNES

Phosphorus (P) efficiency (relative growth), which is described as the ratio of shoot dry matter or grain yield at deficient P supply to that obtained under adequate P supply, was compared in 25 winter wheat cultivars grown under greenhouse and field conditions with low and adequate P levels in a P-deficient calcareous soil. Adequate P supply resulted in significant increases in shoot dry weigh...

2016
Giovanna Visioli Angelica Galieni Fabio Stagnari Urbana Bonas Stefano Speca Andrea Faccini Michele Pisante Nelson Marmiroli

Nitrogen management in combination with sustainable agronomic techniques can have a great impact on the wheat grain proteome influencing its technological quality. In this study, proteomic analyses were used to document changes in the proportion of prolamins in mature grains of the newly released Italian durum wheat cv Achille. Such an approach was applied to wheat fertilized with urea (UREA) a...

Journal: :تولید گیاهان زراعی 0

in order to study grain yield, yield components and growth indices in wheat, the experiment was carried out with five wheat cultivars at rbcd arrangement with 4 replications at gorgan university of agricultural sciences and natural resources. the cultivars included zagros, tajan, kohdasht, durum and n81-18 line. to measure studied traits (leaf, stem and shoot dried weight and leaf area) fifteen...

2010
T. TONKAZ E. DOGAN

TONKAZ, T., E. DOGAN and R. KOCYIGIT, 2010. Impact of temperature change and elevated carbon dioxide on winter wheat (Triticum aestivum L.) grown under semi-arid conditions. Bulg. J. Agric. Sci., 16: 565-575 A study was conducted to determine effects of changed daily maximum, minimum, and elevated CO2 levels on winter wheat yield and yield components. Treatments included 0 ± 2, 4, and 60C in da...

Journal: :تولید گیاهان زراعی 0
حامد عینی نرگسه دانشگاه شهید بهشتی رضا دیهیم فرد دانشگاه شهید بهشتی سعید صوفی زاده shahid beheshti university, evin, tehran مسعود حقیقت سازمان هواشناسی کشور امید نوری shahid beheshti university, evin, tehran

background and objectives: over the last decade, climate change has been one of the most challenging issues in the scientific papers. studying the impacts of climate change on crop productivity at regional scale will depend on the right estimate of future climate. this estimation is being implemented by climate models and most of them by general circulation models (gcms). this study aims at pre...

Journal: :Science 2006
Stephen P Long Elizabeth A Ainsworth Andrew D B Leakey Josef Nösberger Donald R Ort

Model projections suggest that although increased temperature and decreased soil moisture will act to reduce global crop yields by 2050, the direct fertilization effect of rising carbon dioxide concentration ([CO2]) will offset these losses. The CO2 fertilization factors used in models to project future yields were derived from enclosure studies conducted approximately 20 years ago. Free-air co...

ژورنال: علوم آب و خاک 2012
زهرا ایرانشاهی, , سید عطاا... سیادت, , سیروس جعفری, , قدرت ا... فتحی, ,

Cadmium is a toxic element in plant nutrition and is considered as a contaminant of food and feed. A greenhouse experiment was carried out to examine the effects of combined application of cadmium and zinc on responses of wheat on a clay loam soil texture. This experiment was designed in a factorial experiment with randomized complete block design (RCBD) and four replicates per treatment. Three...

Journal: :journal of agricultural science and technology 2010
p. irani

to evaluate durum pasta quality traits, using international standards, a study was conducted on seven improved and local durum wheat varieties. the traits examined included grain vitreousity (i.cc. no. 129), grain hardness index (h.i.), yellow berry (y.b.(, black point (h.p.), hectoliter weight (h.l.w.), thousand kerne! weight (t.k-w.j, protein percentage (i.cc. no. 105.1), protein quality ...

Journal: :زراعت دیم ایران 0
نوشین صادق زاده دانشجوی سابق کارشناسی ارشد دانشکده علوم، دانشگاه تبریز، ایران رقیه حاجی بلند دانشیار گروه علوم گیاهی دانشکده علوم، دانشگاه تبریز، ایران بهزاد صادق زاده 3- استادیار موسسه تحقیقات کشاورزی دیم کشور، مراغه، ایران

there is limited knowledge about physiological and biochemical functions of bread wheat and durum wheat genotypes in response to drought stress. to study differences of drought-sensitive bread and durum wheat genotypes to drought stress, this study was conducted under two different irrigation regimes (well-watered and water-stressed treatments) under glasshouse conditions. the experiment was co...

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