نتایج جستجو برای: cereal crop

تعداد نتایج: 75275  

Journal: :Computers and Electronics in Agriculture 2022

Crop row following is especially challenging in narrow cereal crops, such as wheat. Separation between plants within a disappears at an early growth stage, and canopy closure rows, when leaves from different rows start to occlude each other, occurs three four months after the crop emerges. Canopy makes it identify separate through computer vision clear lanes become obscured. Cereal crops are gr...

Journal: :International journal of biometeorology 2011
Mohammad Bannayan Sajad Sadeghi Lotfabadi Sarah Sanjani Azadeh Mohamadian Majid Aghaalikhani

Climate variability adversely impacts crop production and imposes a major constraint on farming planning, mostly under rainfed conditions, across the world. Considering the recent advances in climate science, many studies are trying to provide a reliable basis for climate, and subsequently agricultural production, forecasts. The El Niño-Southern Oscillation phenomenon (ENSO) is one of the princ...

2017
Alexia Comte Tom Gräfenhan Matthew G Links Sean M Hemmingsen Tim J Dumonceaux

We examined the epiphytic microbiome of cereal grain using the universal barcode chaperonin-60 (cpn60). Microbial community profiling of seed washes containing DNA extracts prepared from field-grown cereal grain detected sequences from a fungus identified only to Class Sordariomycetes. To identify the fungal sequence and to improve the reference database, we determined cpn60 sequences from fiel...

Journal: :Journal of experimental botany 2017
Leonard Gol Filipa Tomé Maria von Korff

The timing of plant reproduction has a large impact on yield in crop plants. Reproductive development in temperate cereals comprises two major developmental transitions. During spikelet initiation, the identity of the shoot meristem switches from the vegetative to the reproductive stage and spikelet primordia are formed on the apex. Subsequently, floral morphogenesis is initiated, a process str...

Journal: :Genome research 2014
Andrea L Eveland Alexander Goldshmidt Michael Pautler Kengo Morohashi Christophe Liseron-Monfils Michael W Lewis Sunita Kumari Susumu Hiraga Fang Yang Erica Unger-Wallace Andrew Olson Sarah Hake Erik Vollbrecht Erich Grotewold Doreen Ware David Jackson

Genetic control of branching is a primary determinant of yield, regulating seed number and harvesting ability, yet little is known about the molecular networks that shape grain-bearing inflorescences of cereal crops. Here, we used the maize (Zea mays) inflorescence to investigate gene networks that modulate determinacy, specifically the decision to allow branch growth. We characterized developm...

Journal: :Journal of experimental botany 2007
James Cockram Huw Jones Fiona J Leigh Donal O'Sullivan Wayne Powell David A Laurie Andrew J Greenland

The control of flowering is central to reproductive success in plants, and has a major impact on grain yield in crop species. The global importance of temperate cereal crops such as wheat and barley has meant emphasis has long been placed on understanding the genetics of flowering in order to enhance yield. Leads gained from the dissection of the molecular genetics of model species have combine...

Journal: :journal of agricultural science and technology 2010
h. s. hassani i. p. king s. m. reader p. d. s. caligari t. e. miller

soil affected by salt (nacl) is a major problem worldwide and in areas with potential agriculture; lands in many countries are not enough to support crop production. the development of salt tolerant cultivars would be enhanced by better understanding of the genetic control of tolerance to salt stress. a new cereal, tritipyrum, a range of amphiploids between triticum spp. and thinopyrum spp....

2011
Pawel Topa Maciej Kuzniar Witold Dzwinel

Fusarium Graminearum is responsible for Fusarium head blight (FHB) infection which reduces world-wide cereal crop yield. As a consequence of mycotoxin production in cereal grain, it has also serious negative impact on both human and animal health. The main objective of this study is to develop a mechanistic and conceptual metaphor of Fusarium growth. Our model is based on a new realization of G...

2006
A. S. Oyekale

This study used an ECM to analyze the determinants of agricultural land expansion in Nigeria. Results show that at first differencing, Augmented Dickey Fuller test indicated stationarity for all the variables (p< 0.05) and there were 7 cointegrating vectors using Johansen test. The dynamic unrestricted short-run parameters of permanent cropland growth rates (68.62), agricultural production inde...

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