VINE DEVELOPMENT Dormancy |
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Grapevines
are deciduous plants. In late autumn, triggered by short days, petioles
detach from the shoot and leaf drop occurs. The vines can no longer
manufacture carbohydrates through the process of photosynthesis and are
storing carbohydrates in the form of starch. This dormant state will
continue until daylight hours and temperatures increase in spring, when
axial buds that were formed before dormancy become activated to break. |
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