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Bottles to trees: Plastic beverage bottles as an alternative nursery growing container for reforestation in developing countries

Fig 4

Arizona walnut seedling field relative height (A) and root collar diameter (B) growth (Means ± SE) following the first year of outplanting. Container types: Coca-Cola® bottles (Coke), DeepotTM D27 containers (D27), polyethylene polybags (Polybag), and Sam’s Club® bottles (Sams). Means (±SE) not accompanied by the same lowercase letters are significantly different (α = 0.05) according to Fisher’s LSD test.

Fig 4

doi: https://doi.org/10.1371/journal.pone.0177904.g004