Fruit growing
and viticulture of South Russia

Annotation

The data on the mechanical properties of feijoa fruits under conditions of Southern Daghestan are presented for the first time. The studies, the data of which are given in this work, were carried out according to standard generally accepted methods in accordance with the requirements of GOST 342172017 �Fresh feijoa. Technical conditions�. The result of the study is the determination of the size and weight of the fruits of the four studied varieties of feijoa (Coolidge, Superba, Choiseana (Republic of Azerbaijan) and Choiseana (Republic of Daghestan)), obtained from different areas of growing. It has been shown that the Superba variety has the largest fruits, the average mass of which is 39.7 %, and they be attributed to large fruits. The size of transverse diameter of this fruit is 54.0 mm, the length is 61.1 mm, the ratio H: D = 1.13 conventional units. Varieties of Kulidzh and Choiseana from the Leninokan Region can be classified as medium-weight ones by average mass and H: D ratio (average mass is 28.8 and 23.5 g, respectively). As for the Choisean variety introduced in the village of Tagirkent (Republic of Dagestan), the size of its fruits is much lower � 12.8 g, which is almost 2 times less than the fruits of the same variety grown n the Republic of Azerbaijan. Accordingly, the size of the transverse diameter of this variety is smaller � 23.5 mm, the length of the fruit is 35.7 mm. However, preliminary testing assessment has showed that the small feijoa fruits from Tagirkent are much sweeter than the fruits of other testing objects.