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. 2015 Dec 21;5:18835. doi: 10.1038/srep18835

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D15, D30 and D45 mean densities of 15, 30 and 45 × 10⁴ plants ha⁻¹; R15, R25 and R35 mean inter-row spacing of 15, 25 and 35 cm. Different letters denote significant difference at P < 0.05 by LSD.