1- Phenological stages of the vine: State 01 Winter Stop.
In viticulture it is very important to know the different phenological stages of the vine.
This helps us to know when the vineyards are.
In this way, we can decide the work to be carried out or the phytosanitary treatment to apply at the right time.
In this state the vine is in a vegetative stop, without leaves.
The winter or dormant buds endure very low temperatures.
Sensitivity to pests and diseases in this phenological state:
Excoriosis and bacterial necrosis, Powdery mildew, Red spider, Tuberculosis and Barrenillo.
2- Phenological state of the vine 02: Swollen bud.
In this phenological state, the buds begin to swell.
In viticulture, it is said that the vineyard “cries”, because from the pruning wounds it emits sap.
It cannot be observed, but at this time the plant also begins to have root activity.
3- Vine phenological stages 03: Green tipped bud.
The miracle of the vineyard: The buds open little by little, as the temperature increases, both environmental and soil.
The first fully defined green shoots begin to be observed.
Buds with less vigor and reserves sprout earlier.
Sensitive state to: Gray worms, Caterpillars, Snails, Moths …
4- Phenological stages of the vine: 04 Bud Opening.
The first open leaves begin to be observed.
Sensitivity to pests and diseases: in this state, the vine is sensitive to acariosis and pyralis.
5- Vine phenology: 05 Expanded Leaves.
The two or three fully open leaves are observed.
6- Phenological phases of the vine: 06 Expanded leaves, visible influences.
Clusters visible (4-6 leaves visible)
The first clusters are still inflorescences at the end of the shoot.
Viticulture and phenology sensitivity to:
Powdery mildew, Black-rot, Piral, Eulecanio, Mildiu (at 10 cm).
7- Phenological states vid: 07 Separate inflorescences.
The inflorescences are elongated and presented separately.
The flower organs still remain agglomerated.
Sensitivity in this phenological state to Piral, Red Spider, Aphids.
8- Phenological cycle of the vine: 08 Separate flower buttons.
Separate flower buds
It is the phase of appearance of the typical shape of the clusters.
The flower clusters are already fully developed.
Viticulture and phenology:
In this phase the vineyard shows sensitivity to Mildew, Gray Rot, Pyral, Anthracnose, Euthypiosis …
9- Flowering of the vine: 09 Full flowering.
Home Flowering and Flowering
The calyptra separates from the base of the ovary and falls, exposing the flower organs.
Stamens and pistils mature.
Sensitivity at this stage of the phenological cycle:
Powdery mildew, Moths, Mildew, Aphids …
10- Vine phenology: 10 Berry size pellet.
Fruit set (fall of the flower caps).
Fall of withered stamens.
Thickening of the fertilized ovaries that will constitute the grape or berry grain.
Sensitivity in this phenological state to Mildew, Gray Rot …
11- Vine phenological states: 11 Pea size berry.
Viticulture and phenology: Sensitivity to Powdery Mildew, Mildew, Spiders, Moths, Pyral, Honeydew …
12- Phenological stages of the vine: 12 bunch compaction.
13- Envero of the vine: 13 Envero.
Temporary stoppage of growth with progressive loss of chlorophyll.
Color change: the pigments responsible for the characteristic coloring of each variety appear.
The grape grain acquires a translucent appearance, a softer and more elastic consistency, it is covered with bloom.
The seeds reach physiological maturation.
Sensitivity at this stage of the phenological cycle: Acariosis, Moths, Mildew, Rot …
14- Phenological stages of the vine: 14 Maturation.
Sudden resumption of growth.
Accumulation of sugars.
Loss of acidity.
Generation of characteristic aromas of the variety.
Sensitivity to rot.
15- 15 Shrinking of the vine and falling of the leaves.
The leaves begin to yellow.
Breathing slows and perspiration stops.
The leaves dry out and fall.