نتایج جستجو برای: summer maize

تعداد نتایج: 89919  

2016
Hong Xu Tracy E. Twine Evan Girvetz

Climate is changing across the world, including the major maize-growing state of Iowa in the USA. To maintain crop yields, farmers will need a suite of adaptation strategies, and choice of strategy will depend on how the local to regional climate is expected to change. Here we predict how maize yield might change through the 21st century as compared with late 20th century yields across Iowa, US...

2013
Yavni Bar-Yam Marco Lagi

High and volatile global food prices have led to food riots and played a critical role in triggering the Arab Spring revolutions in recent years. The severe drought in the US in the summer of 2012 led to a new increase in food prices. Through the fall, they remained at a threshold above which the riots and revolutions had predominantly occurred. Global prices at this level create conditions whe...

2014
G. L. Wang Y. L. Ye X. P. Chen Z. L. Cui

Introduction Conclusions References

Journal: :تولید گیاهان زراعی 0
محمد تقی فیض بخش مرکز تحقیقات کشاورزی و منابع طبیعی گرگان بهنام کامکار دانشگاه علوم کشاورزی و منابع طبیعی گرگان حسن مختاربور مرکز تحقیقات کشاورزی و منابع طبیعی گلستان محمد اسماعیل اسدی مرکز تحقیقات کشاورزی و منابع طبیعی گلستان

sowing date and irrigation are two constrain factors for maize production. these factors can be simulated by using ceres-maize model. for this purpose two experiments (each one at two years) were carried out at agricultural research station of gorgan which is golestan province capital. the model was calibrated using three treatments of optimum irrigation and without stress in 2012 and two treat...

2017
Qingfeng Meng Hongfei Wang Peng Yan Junxiao Pan Dianjun Lu Zhenling Cui Fusuo Zhang Xinping Chen

The food supply is being increasingly challenged by climate change and water scarcity. However, incremental changes in traditional cropping systems have achieved only limited success in meeting these multiple challenges. In this study, we applied a systematic approach, using model simulation and data from two groups of field studies conducted in the North China Plain, to develop a new cropping ...

Journal: :Archives of Iranian medicine 2014
Leila Taala Ahmad Majd Maryam Nourizadeh Zahra Pourpak

BACKGROUND Maize is a member of the Poaceae family, capable of producing large amounts of pollen grains which may constitute important allergens in spring and summer. The aim of this study was to determine the protein content of maize pollen and its allergenicity in guinea pigs. METHODS The morphology of maize pollens was determined using light microscopy and scanning electron microscopy. The...

Journal: :iran agricultural research 2013
y. emam m. sedaghat h. bahrani

understanding the relationship between sink and source in maize is of prime importance in maize growing regions. in this study, a field experiment was carried out during spring and summer 2007 in the experimental field of the college of agriculture, shiraz university, to examine the effects of source restriction (defoliation) on sink size (yield and its components) of  sc704 maize hybrid.  a fa...

2017
Taner Z. Sen Bremen L. Braun David A. Schott John L. Portwood Mary L. Schaeffer Lisa C. Harper Jack M. Gardiner Ethalinda K. S. Cannon Carson M. Andorf

The Maize Genetics and Genomics Database (MaizeGDB) team prepared a survey to identify breeders’ needs for visualizing pedigrees, diversity data and haplotypes in order to prioritize tool development and curation efforts at MaizeGDB. The survey was distributed to the maize research community on behalf of the Maize Genetics Executive Committee in Summer 2015. The survey garnered 48 responses fro...

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