Online ISSN: 2515-8260

Ampelographic and phenotypic bases of improvement of some grape 2 varieties

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Vugar SALIMOV1 , Movlud HUSEYNOV2* , Azer SHUKUROV1 , Afet HUSEYNOVA1 3 , Hikmat NASIBOV1 , Vusala SHUKUROVA1 , Elnura MUSAYEVA1 , Khuraman ABASOVA1 4 , Aida Najafova1

Abstract

During the research, the prospects of a number of local and introduced seedless grape 13 varieties were evaluated on the basis of a "new model", which includes 25 ampelographic indicators 14 of OIV, and morphometric sizes of berries and bunches, including yield indicators, were studied. It 15 was revealed that the grape varieties differ significantly in their ampelodescriptor indicators. The 16 overall assessment of prospects, calculated from the score which was obtained for each descriptor 17 indicator, significantly differed by grade and changed in a wide range from 101.8 (Khyrcha 18 kishmish) to 162.5 (Sultany kishmish) points. It was determined that 1 variety is unpromising, 3 19 varieties are quite promising, 14 varieties are extremely promising in comparison with the control. 20 Researches have shown that the studied grape varieties also differ significantly in the yield 21 of the vine. So, this indicator ranged from 5.3 (Khyrcha kishmish) to 12.8 kg (Attica). Mathematical 22 and statistical analysis of the significance level of the average yield of the studied varieties 23 compared to the control (by U-factor) and the average growth compared to the control (∆ ,%) 24 showed that only three of the local varieties (Ag oval kishmish, Ag kishmish, Gara kishmish), and 25 six of the introduced varieties (Attica, Superior, Autumn Royal, Danuta, Centennial seedless, 26 Sultanina) have significant reliability compared to the control variety Asgeri. Compared with the 27 control, the average growth of the varieties of Kishmish Sogdiana, Kishmish Zarafshan, Sary 28 kishmish, Khyrcha kishmish, Gyrmyzy kishmish was zero or negative (0 and -29.4%), while other 29 varieties (Ag oval kishmish, Gara kishmish, Chahrayi kishmish, Attica, Superior, Danuta, etc.) had 30 a significant positive growth (5.6-88.2%).

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