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

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Cucurbits Feller et al., 1995 b<br />

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

<strong>of</strong> cucurbits<br />

(Cucumber = Cucumis sativus L., melon = Cucumis melo L., pumpkin,<br />

marrow, squash = Cucurbita pepo L., calabash = Cucurbita pepo L. var.<br />

giromontiina Alef./Greb, water-melon = Citrullus var. vulgaris Schad.)<br />

Code Description<br />

2 -<strong>and</strong> 3digit<br />

Principal growth stage 0: Germination<br />

00 000 Dry seed<br />

01 001 Beginning <strong>of</strong> seed imbibition<br />

03 003 Seed imbibition complete<br />

05 005 Radicle emerged from seed<br />

07 007 Hypocotyl with cotyledons breaking through seed coat<br />

09 009 Emergence: cotyledons break through soil surface<br />

2- <strong>and</strong> 3digit<br />

Principal growth stage 1: Leaf development<br />

10 100 Cotyledons completely unfolded<br />

11 101 First true leaf on main stem fully unfolded<br />

12 102 2nd true leaf on main stem unfolded<br />

13 103 3rd true leaf on main stem unfolded<br />

1 . 10 . Stages continuous till . . .<br />

19 109 9 or more leaves on main stem unfolded (2digit)<br />

9th leaf unfolded on main stem (3digit)<br />

– 110 10th leaf on main stem unfolded<br />

– 11 . Stages continuous till . . .<br />

– 119 19th leaf on main stem unfolded<br />

2 -<strong>and</strong> 3digit<br />

Principal growth stage 2: Formation <strong>of</strong> side shoots<br />

21 201 First primary side shoot visible<br />

22 202 2nd primary side shoot visible<br />

2 . 20 . Stages continuous till . . .<br />

29 209 9 or more primary side shoots visible<br />

– 221 First secondary side shoot visible<br />

– 22 . Stages continuous till . . .<br />

– 229 9th secondary side shoot visible<br />

– 231 First tertiary side shoot visible

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