Growth and phosphorus uptake of lupins (Lupinus angustifolius L.) and great brome (Bromus diandrus Roth.) grown in different phosphorus concentrations in solution culture
1992
Acharee Rugkhla | Turner, W.D. (Murdoch Univ. (Australia). School of Biological and Environmental Sciences)
Investigation of the competitive abilities of lupin (Lupinus angustifolius) and great brome (Bromus diandrus) at different P supply under controlled conditions was aimed at understanding the mechanism of nutrient competition between these two species. Under suboptimal P supply, great brome, with higher root area per unit root weight and relative growth rate, took up limited amounts of P faster than lupins. By so doing, great brome partly overcame its disadvantage of lower initial seed size within 35 days after transplanting, and had higher P productivity than lupins. However, under high P supply, lupins tended to have higher potential to respond to P than great brome.
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