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. 2025 May 23;16:1603577. doi: 10.3389/fpls.2025.1603577

Table 2.

The table presents the distribution of landraces from different geographic regions (Asia, Australia, Europe, Middle East, North Africa, and USSR) across four clusters under both low nitrogen (LN) and normal nitrogen (NN) conditions.

LN Total NN Total Per%
Row Labels 1 2 3 4 1 2 3 4
Asia 20 19 12 51 102 29 11 28 34 102 33.12
Australia 11 3 4 7 25 7 2 2 14 25 8.12
Europe 29 19 24 32 104 46 13 17 28 104 33.77
Middle East 10 8 8 12 38 14 4 9 11 38 12.34
North Africa 4 10 2 9 25 6 7 4 8 25 8.12
USSR 3 1 10 14 7 5 2 14 4.55
Grand Total 77 60 50 121 308 109 37 65 97 308

The columns show the number of landraces in each cluster (1 to 4) and the total number of landraces per region for both LN and NN treatments. The grand total at the bottom summarizes the overall distribution, with 308 landraces analyzed. This table highlights the regional diversity and clustering patterns of landraces under varying nitrogen conditions, providing insights into their adaptability and performance.