By D. K. Salunkhe, S. S. Deshpande (auth.), D. K. Salunkhe Ph.D., S. S. Deshpande Ph.D. (eds.)
The current international inhabitants of approximately 5 billion and its projected progress cre ate enonnous pressures and calls for for meals and business uncooked fabrics. it truly is to crop crops, certainly one of our invaluable few renewable assets, that we needs to glance to fulfill each one of these wishes. Globally, approximately 88% of our caloric specifications and ninety% of our protein finally derive from plant sources-ample facts in their significance to humankind. Our survival will accordingly proceed to de pend at the world's biggest and positively most vital undefined: agriculture. but regardless of our lengthy heritage of domestication and civilization, the variety of crop species all for maintaining human lifestyles is precisely constrained: primarily, a few twenty-four plants shield us from hunger. to understand those simple nutrition crop plants-to learn how they functionality and the way their productiveness will be improved--is step one in fixing the realm foodstuff challenge. the first ambitions in penning this publication have been to deal with this chal lenge and to check comprehensively the wealth of accessible but scattered infor mation on nutrition crop productiveness and processing. in contrast to numerous different texts and monographs during this box, the current paintings used to be meant to provide, in one quantity, a short, infonnative view of some of the difficulties from box to desk in regards to the significant nutrition vegetation worldwide.
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Additional resources for Foods of Plant Origin: Production, Technology, and Human Nutrition
Millets Compared to other cereal grains, millets generally have smaller seeds. They also exhibit a wider range of size, shape, and color. For example, the pearl millet grain may be near white, pale yellow, brown, gray, slate blue, or purple in color, whereas finger millet grains may be white, orange-red, deep brown, purple, or almost black. In millets the pericarp, endosperm, and germ are the principal grain components. The aleurone is a single layer of blocklike cells extending around the periphery of the entire kernel.
Barber, Tjepkema, and Evans (1976) isolated N2-fixing strains of Enterobacter cloacae, Bacillus macerans, and B. polymyxa from wheat roots in Oregon soils. Larson and Neal (1976) described a highly specific association of a facultative Bacillus sp. with a disomic chromosome substitution line of wheat. The Bacillus was isolated from a soil where wheat had been growing for thirty years without nitrogen fertilizer. The rhizosphere of this wheat line contained also more nitrate-reducing bacteria and a lower total number of microorganisms.
46 FOODS OF PLANT ORIGIN the substrate for photorespiration, is much lower in C-4 plants (about 10% of that of C-3 plants). This may be due to the high concentration of CO2 in the bundle sheath cells that prevents the oxidation (instead of carboxylation) of ribulose biphosphate. Another major difference between C-3 and C-4 plants is related to their compensation points, defined as the lowest steady-state ~ concentrations achievable in a closed system containing a photosynthesizing plant. These points are higher for the C-3 than for the C-4 plants (Tootill1984).