Millerandage
The millerandage is a defect of maturation of the Vigne outcome with an abortion partial of the Raisin S.
The bunches become ripe by presenting grains of very variable size and different maturity, which compromises the total quality of harvest. All the stages exist, of the pure and simple abortion of the flower (Coulure), until the practically normal formation of the seed (grain). The intermediate forms are grains which grow bigger more or less and fall, for some. The bunch has a characteristic aspect with sparse grains, of all dimensions and for largest, at all stages of maturity.
The grapes known as “millerands” have grains very small, in great number, and deprived of pips. the vine of Corinth is a type of vine where the millerandage is the rule . (Levadoux, Vine, 1961, p.18).
Origin
The millerandage is often a consequence of the run-out related to bad climatic conditions at the time of the floral Induction.It can also be with an insufficiency in Bore.
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