Wild relatives may also represent actual or potential weeds and they often constitute crop-weed complexes with the domesticated plants [ 1, 5].
Here, we show that intercropping warm-season crops constitute a feasible alternative to promote heterogeneity within-fields and therefore sustain biodiversity in conventional cropping systems in temperate regions, which have become highly simplified after agricultural intensification such as in the Southern Pampa.
The World Trade Organization says that general bans on genetically modified crops constitute an unfair trade barrier, because there is no scientific basis for exclusion.
Cereal crops constitute our largest primary food source and are also highly used in food and non-food industrial applications.
Forest biomass, agricultural residues and energy crops constitute the three major sources of biomass for energy, with the latter probably developing into the most important source over the 21st century.
In the 2G case, depending on the type of land used and the suitability of this land for food crops, lignocellulosic energy crops potentially constitute a conflict with food production.
Squash, coconuts, bananas, and vanilla beans constitute the main cash crops, and other important crops include yams, taro, cassava, corn (maize), watermelons, pineapples, breadfruit, limes, and tomatoes.
Although there have been recent attempts to model the role of seed movement and anthropogenic factors in the establishment of feral crop populations and volunteers in industrialized agriculture [23], seed dynamics in centers of crop diversity constitute an entirely different phenomenon [6].
Soybeans, for example, which constitute the fourth-largest crop in the world, are self-pollinated, and can't be crossbred easily.
Viral diseases in crop plants constitute a major obstacle to food security in the developing world.
The large amounts of palm wastes produced every crop season constitute a big charge for the farmers who are always trying to burn or transport them outside of oasis.
