Uma M. Singh

TL;DR: In this article, a model for calculating N-use efficiency is proposed that explicitly accounts for contributions from both indigenous and applied N to plant uptake and yield, and the authors conclude that the intrinsic capacity of wetland rice systems to conserve N and the rapid N uptake potential of the rice plant provide opportunities for significant increases in N efficiency by improved management and monitoring of indigenous N resources, straw residues, plant N status, and N fertilizer.

TL;DR: Understanding of the mechanisms governing the efficient use of N by rice plants—both its acquisition and internal use—is reviewed and the possibility of incorporating in rice the machinery for N2 fixation is discussed.

TL;DR: Morphological, geographical and molecular data analyses of Indian species of Berberis suggest probable reticulate evolution and thus barcode markers may not work in this case, reconfirm the earlier reports that the concept of universal barcode in plants may not working in a number of genera.

TL;DR: The study identified genotypes which may possess promising traits for improved N uptake and utilization efficiency and the relative performance of genotypes in terms of NUE was more consistent than plant N uptake, based on rank correlations between the two trials.

TL;DR: In this article, the effects of two W and three N regimes on growth and productivity, N uptake and N-use efficiencies, and N balance for rice-wheat systems of northern Bangladesh were investigated.