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. 2018 Oct 1;9:1452. doi: 10.3389/fpls.2018.01452

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Copyright © 2018 Sharma, Sinha, Gupta, Rajpal, Kuchi, Sitaramam, Parsad and Raghuram.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Biplot analysis of 21 Indica rice genotypes based on the extent of N-induced delay in germination. The N-responsive delay in the time taken for 50% seeds to germinate (Δt_½) was calculated as the difference between the t_½ values with or without N in the medium (as described in the legend for Figure 1) and subjected to biplot analysis. The numbers inside the plot represent the 21 genotypes and alphabets represent N treatments viz, nitrate (A), ammonium chloride (B), urea (C), or ammonium nitrate (D). The genotypes toward negative X axis are, Aditya (1), Nidhi (2), Swarnadhan (3), Mandya Vijaya (19) and Nagarjuna (21) whereas genotypes toward positive X axis are, Vikramarya (5), Varadhan (8), Panvel (9) and Pusa Basmati (20).