Journal Article 3 root functional trait Research Support, Non-U.S. Gov't 2 Soil 2 intraspecific variation 2 27YLU75U4W 1 Alfalfa genotypes 1 mehr ... N762921K75 1 Nitrogen 1 Phosphorus 1 Plant Exudates 1 collaboration gradient 1 conservation gradient 1 interspecific variation 1 low-phosphorus stress 1 nutrient acquisition 1 phosphorus acquisition strategy 1 plasticity response 1 root diameter 1 root economics 1 root exudate 1 root plasticity 1 trade-off 1 weniger ...