نتایج جستجو برای: cereal crop

تعداد نتایج: 75275  

Journal: :Field Crops Research 2021

Cereal-legume intercropping can increase yields, reduce fertilizer input and improve soil quality compared with pure culture. Designing systems requires the integration of plant species trait selection choice crop configuration management. Crop growth models facilitate understanding prediction interactions between traits, However, currently no existing model has been calibrated tested for cerea...

2015
Guanqing Jia Xiaotong Liu James C. Schnable Zhengang Niu Chunfang Wang Yuhui Li Shujun Wang Suying Wang Jinrong Liu Erhu Guo Hui Zhi Xianmin Diao

Crop improvement is a multifaceted micro-evolutionary process, involving changes in breeding approaches, planting configurations and consumption preferences of human beings. Recent research has started to identify the specific genes or genomic regions correlate to improved agronomic traits, however, an apparent blank between the genetic structure of crop elite varieties and their improving hist...

2005
Dmitry Miroshnichenko Mikhail Filippov Sergey Dolgov

Wheat (Triticum aestivum L.) ranks first among cereal crops cultivated in Russia and Russia is one of the major wheat producers in the world. Though there is a great demand for Russian wheat varieties with resistance to diseases and other environmental stress, there is a limitation at transferring resistance to crop plants by the complexity of stress tolerance traits, as most of these are quant...

Journal: :Science 2006
Changbao Li Ailing Zhou Tao Sang

Crop domestication frequently began with the selection of plants that did not naturally shed ripe fruits or seeds. The reduction in grain shattering that led to cereal domestication involved genetic loci of large effect. The molecular basis of this key domestication transition, however, remains unknown. Here we show that human selection of an amino acid substitution in the predicted DNA binding...

2010
Jaana Uusi-Kämppä Pasi K. Mattila

While many small dairy farms have shut down milk production, the livestock density and number of livestock farms have increased in certain regions in western and central Finland during recent decades. At present, most dairy farms prefer almost continuous grass cultivation to crop rotation with cereals and grasses. Consequently, slurry is spread onto fields of silage grass instead of using earli...

2015
M. USMAN

Recent studies have revealed that the integrated use of organic and inorganic fertilizers on crop has not received adequate research attention. In this paper, maize is considered among the most important cereal crops in Nigeria and all over the world that has high requirement for organic and inorganic nutrients in order to obtain good quality and high yields. The application of inorganic fertil...

2005
Francesco Bosello Jian Zhang

The economy-wide implications of climate change on agricultural sectors in 2050 are estimated using a static computable general equilibrium model. Peculiar to this exercise is the coupling of the economic model with a climatic model forecasting temperature increase in the relevant year and with a crop-growth model estimating climate change impact on cereal productivity. The main results of the ...

2003
R. Norton J. Kirkegaard

• Canola is one of the most profitable crops available to grain growers in southern and western Australia and rotations have been adapted to accommodate it. • Canola provides large yield benefits to subsequent cereal crops by providing an effective disease break. • Canola was often grown as the first crop after pasture but now canola is often used more intensively in rotations, posing problems ...

Journal: :Genome 2003
Robin G Allaby Terence A Brown

Amplified fragment length polymorphism (AFLP) datasets have been used to construct neighbor-joining trees from which monophyletic origins for crops such as einkorn wheat, barley, and emmer wheat have been inferred. We simulated several different multiple domestication scenarios for an imaginary cereal crop and examined the resulting domesticated populations. The simulations showed that the popu...

2003
J R N Taylor

In terms of tonnage, sorghum is Africa’s second most important cereal. The continent produces about 20 million tonnes of sorghum per annum, about one-third of the world crop. However, these figures do not do justice to the importance of sorghum in Africa. It is the only viable food grain for many of the world’s most food insecure people. Much of the African continent is characterized by semi-ar...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید