Factors influencing variability in manganese content of seeds, with emphasis on barley (Hordeum vulgare) and white lupins (Lupinus albus) [wheat; Triticum aestivum; faba beans; Vicia faba]
1990
Longnecker, N.E. (South Australian Dept. of Agriculture, Glen Osmond. Waite Agricultural Inst.) | Uren, N.C. (La Trobe Univ., Bundoora (Australia). School of Agriculture)
Field trials were conducted on wheat, barley, white lupins and faba beans. For barley, site of growth was the most important determinant of Mn content of the seed. Manganese concentrations in seeds of different species grown at the same site varied considerably. The range of Mn concentration of seed from one plant was 1530 to 3750 mg per kg for white lupins and 11 to 24 mg per kg for barley. In barley (and probably most plants), variability of seed Mn concentration can be minimized by selecting seed by weight from parents grown at the same site during the same season. Variability of Mn concentration and content of white lupin seeds is not as easily accounted for and thus is more difficult to minimize. For barley, there was a positive relationship between seed weight and Mn concentration, while in white lupins, no such relationship was apparent. For white lupins with high concentrations of Mn, seed Mn variability could not be accounted for by genotype or seed weight.
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