Although the current population structures of rice landraces and wild species should reflect the effects of such migration: the movement of natural populations under the influence of climate, once a type of rice is cultivated, rapid expansion of its area of cultivation can be hypothesized to follow migrations of human populations or transfers of seeds and plants between populations.
Despite accounting for 24% (4.5 Mha) of the world's total oil palm cultivated area, expansion dynamics in sub-Saharan Africa have been overlooked.
These gel scaffolds preferentially cultivated the expansion (ex vivo) of LEC; subcultivation of limbal holoclones preserved stem and progenitor cells in the basal layer of fibrin-based epithelial sheets [14].
Together with economic forces, intensification will lead to farm and field consolidation; reduction of field margins; clearance and levelling of adjacent wastelands so that they can be cultivated; further expansion in the use of modern varieties; greater use of pesticides; and higher stocking rates for grazing animals.
Oil palm is one of the most extensively cultivated biodiesel feedstocks worldwide, and expansion of its cultivation poses a significant threat to ecosystems, biodiversity and potentially the global climate.
That attitude is exactly what China has been seeking to cultivate by aggressively supporting the expansion of Mandarin programs here and in many other countries.
Small restaurateurs are increasingly using the Internet to sell goods that go far beyond the usual array of branded T-shirts and hats, in hopes of not just building the bottom line, but also cultivating possible new markets for expansion.
At the same time, an extended Prosecco CDO Area that included two regions and seven provinces was created, leading to a fast expansion of Glera cultivated surfaceg (nowadays the CDO Prosecco is the biggest Italian wine GIh).
MSCs were cultivated for 5 days in expansion medium containing serum from aged and young rats, respectively.
Expansion of the area cultivated accounted for just under a quarter of production growth in these countries.
Agricultural expansion, some of it to cultivate more grains, accounts for 80% of the world's deforestation, says the UN Environmental Programme.
