USE OF BIOREGULATORS TO REDUCE SWEET CHERRY TREE GROWTH AND TO IMPROVE FRUIT QUALITY

Sweet cherry trees are growing vigorously.
Some trials are undertaken to limit their size.
This may be achieved by using dwarf rootstocks, kind of pruning, breeding new cultivars or spray with chemicals which cause inhibition of shoot growth.
The results of trials where the preparation BAS 111 06 W (BASF Company) was used for this purpose will be presented.
The period of supplying fresh sweet cherry fruits on the market is very short.
Moreover, the sweet cherry fruits are very susceptible to cracking before harvest as well as for bruises during transport and storage.
There is a need to prolong the harvest time of sweet cherry fruits and to improve their quality after harvest.
Gibberellin A₃ (in form of preparation Gibrescol, Polish product of "Polfa") was used for this purpose.
It was shown that GA₃ used on trees of cv.
Buttner’s Red delayed harvest time about two weeks and reduced the sensitivity of fruits for bruises.
Simultaneously, fruit size, firmness and soluble solids content were increased as well.

III International Cherry Symposium

A. Basak, E. Rozpara, Z. Grzyb

Sweet cherry, retardant, gibberellin, vegetative growth, fruit quality

https://doi.org/10.17660/ActaHortic.1998.468.91