1. The flower cluster pinching just before the blossoming tilde seemed to be effective for the setting of berries with shotting varieties such as Cannon Hail Muscat and Kôshû-Sanjaku.
2. This is mainly attributed to the increased supply of nutrients to the remaining parts affected by the removing of tips of clusters
3. The main stems of treated bunches seemed to he very stocky and none of them were infected by the“maladie des pedicelles, ”on the contrary, with non-treated clusters we observed that they seemed to he soft and severely infected.
4. The vigorous growth of shoulder parts induced by this practice was regarded as the“compensation growth”named by Y. Oinoue, which occurs within the organs of the same nature.
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