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Growth stages of mono-and dicotyledonous plants - Regione ...

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Currants Meier et al., 1994<br />

Phenological growth <strong>stages</strong> <strong>and</strong> BBCH-identification keys <strong>of</strong><br />

currants<br />

(black currant = Ribes nigrum L., red currant = Ribes rubrum L.)<br />

Code Description<br />

Principal growth stage 0: Sprouting/Bud development<br />

00 Dormancy: leaf buds <strong>and</strong> the thicker inflorescence buds closed<br />

<strong>and</strong> covered by dark brown scales<br />

01 Beginning <strong>of</strong> bud swelling: bud scales elongated<br />

03 End <strong>of</strong> bud swelling: edges <strong>of</strong> bud scales light coloured<br />

07 Beginning <strong>of</strong> bud burst: first green or red leaf tips just visible<br />

09 Leaf tips extended beyond scales<br />

Principal growth stage 1: Leaf development<br />

10 Leaf tips above the bud scales: first leaves separating<br />

11 First leaves unfolded (others still unfolding)<br />

15 More leaves unfolded, not yet full size<br />

19 First leaves fully exp<strong>and</strong>ed

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