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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 />

Code Description<br />

Principal growth stage 3: Shoot development1 31 Beginning <strong>of</strong> shoot growth: axes <strong>of</strong> developing shoots visible<br />

32 Shoots about 20% <strong>of</strong> final length<br />

33 Shoots about 30% <strong>of</strong> final length<br />

3 . Stages continuous till . . .<br />

39 Shoots about 90% <strong>of</strong> final length<br />

Principal growth stage 5: Inflorescence emergence<br />

51 Inflorescence buds <strong>and</strong> leaf buds swelling: buds closed,<br />

light brown scales visible<br />

53 Bud burst: scales separated light green but sections visible<br />

54 Green or red leaf tips above bud scales<br />

55 First flower buds (compact raceme) visible beside unfolded<br />

leaves<br />

56 Beginning <strong>of</strong> raceme elongation<br />

57 First flower bud separated on elongating raceme<br />

59 Grape stage: all flower buds separated<br />

Principal growth stage 6: Flowering<br />

60 First flowers open<br />

61 Beginning <strong>of</strong> flowering: about 10% <strong>of</strong> flowers open<br />

65 Full flowering: at least 50% <strong>of</strong> flowers open, first petals falling<br />

67 Flowers fading: majority <strong>of</strong> petals fallen<br />

69 End <strong>of</strong> flowering: all petals fallen<br />

Principal growth stage 7: Development <strong>of</strong> fruit<br />

71 Beginning <strong>of</strong> fruit growth: first fruits visible at raceme base<br />

72 20% <strong>of</strong> fruits formed<br />

73 30% <strong>of</strong> fruits formed<br />

74 40% <strong>of</strong> fruits formed<br />

75 50% <strong>of</strong> fruits formed<br />

76 60% <strong>of</strong> fruits formed<br />

77 70% <strong>of</strong> fruits formed<br />

78 80% <strong>of</strong> fruits formed<br />

79 90% <strong>of</strong> fruits formed<br />

1 From terminal bud

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