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Effects of cutting size on performance of black willow (Salix nigra) stakes - Conclusions
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?In periodic flooding, 10 cm cuttings the greatest growth and aboveground biomass.
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Periodic flooding reduced survival of 5 cm cuttings.
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5 and 10 cm cuttings had greater growth and aboveground accumulation in control.
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Root production of 1cm cuttings was greater than 5 cm cuttings and similar  to 10 cm cuttings in all    moisture treatments.
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Response of 1 and 10 cm cuttings to drought conditions was similar.
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Aboveground production of 1 and 5 cm cuttings was not significantly affected across moisture   treatments. 
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Drought significantly reduced growth of 5 and 10 cm cuttings compared to periodic flooding.
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Root production of 1 cm cuttings was greater in drought compared
to periodic flooding.
?In areas with periodic flooding planting 1 and 10 cm willow cuttings is more suitable.
?In areas with adequate soil moisture 1, 5, and 10 cm cuttings are likely to perform well.
 
?In droughty areas planting 1 cm cuttings is likely to be the best choice.
 Larger diameter cuttings have greater food and water reserves which should allow rapid development of root system. Younger plant material will display vigorous differentiation to form roots and shoots. Cuttings growing in greenhouse display rapid shoot development.

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