Effect of fertilizer nitrogen on drought resistance in Coffea arabica L
When coffee trees have a good supply of nitrogen they are less affected by drought. Explanation and evidence are presented. Trees treated with extra nitrogen contained more adenosine triphosphate, aqueous protein and `bound water'. Such N-rich trees exhibited lower transpiration rates than trees relatively poor in N when water supply was limiting. They had lower stomatal density and water saturation deficit values. Leaves maintained higher chlorophyll and turgidity . The conclusion is that nitrogen increases the drought-resisting capacity of coffee trees. This aspect was clearly reflected in yield, as nitrogen-rich trees produced more coffee beans
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| Main Authors: | , |
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| Format: | biblioteca |
| Published: |
Jun
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| Subjects: | COFFEA ARABICA, FERTILIZANTES NITROGENADOS, RESISTENCIA A LA SEQUIA, EFECTOS DEL NITROGENO, RELACION PLANTA-AGUA, |
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