The presented research provides detailed information about ampelodescriptor signs, morphological, biological, and technological features of the indigenous grape (Vitis vinifera L.) variety Bayanshira, originating from the ancient center of viticulture Ganja-Dashkasan Zone of Azerbaijan. The study also includes the enocarpological and enochemical indicators of its bunches and berries and the population structure and varietal variability of the said grape variety. One of its recorded biotype had the excessive falling of flowers and many fruits and declining plant yield, making the commercial quality of the crop as unsuitable. Thus, for the remaining biotypes, the overall assessment of prospects ranged from 5.59 to 6.89 points. For biotype-6, this figure was significantly lower, amounting to 4.18 points. The yield per plant in biotype-6 was low at 4.4 kg, while for the other biotypes, this figure was significantly higher (6.1 to 12.4 kg). Except for biotype-6, the remaining biotypes along with yield indicators and quality parameters also meet the requirements, and it is advisable to reproduce and grow them on the grapevine farms.
Grape (V. vinifera L.), varieties, local variety, bunch, berries, fruit yield, morphological and biological features, breeding
In grape (V. vinifera L.) variety Bayanshira populations, the study identified and selected eight primary biotypes. Assessment of diversity in the Bayanshira populations, along with the opportunity to recognize the biotypes with superior and low performance, prepares the ground for enhancing the fruit yield with improved quality and to rescue the populations from various hereditary pathologies.