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| | Addressing micronutrient malnutrition |
 | | The first genetic study of a micronutrient efficiency factor appears to be the classical work of Weiss (1943) on iron efficiency in soybeans, in which he showed that efficiency was due to a single, major, dominant gene controlling the reducing power of the root membrane surface. |
 | | Thus, two suites of genes may be important to loading micronutrients into seeds: those involved in uptake from soil, known as micronutrient efficiency traits (Graham, 1984), and those involved in transport within the plant and to the seed, nutrient transport and loading traits. |
 | | Micronutrients can occur in various chemical forms of differing proportions in plant foods and their amounts vary depending on numerous factors including the growth environment, plant species, genotype and cultural methods used to grow the plant. |
| www.css.cornell.edu /FoodSystems/AdvAgron4.html (20030 words) |
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