Identifcation of adaptive responses of breeding material, developed in different breeding centers, helps to purposefully correct these traits where it is necessary. Thus, 42 modern breeding lines from eight institutions of Russia and Kazakhstan were studied in comparison with the historical standard Bezenchukskaya 139 in trails of 16-17 and 18 KASIB-SDW (Kazakhstan-Siberian net for wheat improvement, spring durum wheat) in 2015–2017. Field experiments and yield measurements in each ecological cite were similar. To solve these tasks of the experiment, two-factor ANOVA, methods for adaptability assessment cluster analysis and principle component method were applied. As a result, it was established that 1) genotype and genotype – environment interaction (overall 15.8–23.5 % of total dispersion) had signifcant effect on yield variability; 2) genotype – environment interactions were of linear nature and had no destabilizing effect; 3) all the genotypes tested can be distributed in three clusters, the frst one for locally adapted varieties, the third for varieties of a wide areal, the second included genotypes with intermediate characteristics; 4) breeding centers of the Federal Altai Scientifc Centre of Agro-Biotechnologies and of the Research Institute of Agriculture of South-East produced predominantly varieties of local importance, the Samara Research Institute of Agriculture – varieties of wide area; 5) a stable trend of increased mean yield compared to historical standard Bezenchukskaya 139 over ecological sites was observed only for Samara varieties; 6) varieties of all the breeding centers had no stable difference from Bezenchukskaya 139 concerning stability and responsiveness, which can be explained by an incomplete breeding process for these parameters and confrms the importance of the KASIB program; 7) a trend of yield increase compared to Bezenchukskaya 139 under testing in defnite local environments had more stable parameters with the largest progress observed in the Altai Research Institute of Agriculture (135.4 and 163.2 % to Bezenchukskaya 139), which can be explained by a high efciency of breeding of locally adapted varieties in the breeding center.
The article presents three-year data on the productivity of spring durum wheat varieties in the European continental climate, in order to select the most promising of them and determine the possibilities of breeding and technological adaptation in the region. The experiment involved five varieties of spring durum wheat as B 200, B 205, B 209, B Niva, and Luch 25 taken from Russian Middle Volga regions. Indicators of the best productive bushiness were noted in varieties B Niva and B 209. It was found that the number and weight of seeds in the ear, depending on the variety, varied proportionally to the length of the ear. The best indicators of the structure of the crop were established in varieties B 209 and B Niva. The weight of 1000 seeds was 42.32 to 53.3 g for different varieties of durum wheat. Taking into account the biological yield, the advantage of the variety B Niva over the control variant was revealed. The best formation of grain gluten was observed in agroclimatic conditions in 2015 and 2016: for three years the best indicators of gluten was on average 30.4 %and 29.95%, respectively, for varieties B Niva and B 200.
The article presents the data of productivity of spring durum wheat varieties of various morphotype in the northern regions of Chuvash, and the purpose is to select the most promising and to find the opportunities of breeding and technological adaptability of spring durum wheat in the region. There were five varieties participated in the trials, they are ‘Bezenchukskaya Niva’, ‘Bezenchukskaya 200’, ‘Bezenchukskaya 205’, ‘Bezenchukskaya 209’, ‘Luch 25’. The results of the biometric analysis of spring durum wheat showed that plant height of the varieties ranged from 74.6 cm to 104.8 cm. The plants of the variety ‘Bezenchukskaya 200’ were found the shortest, the plants of the variety ‘Bezenchukskaya 205’ turned to be the highest. The varieties ‘Bezenchukskaya Niva’ and ‘Bezenchukskaya 209’ showed the best indexes of productive tillering. The best indexes of a yield structure were found in the variety ‘Bezenchukskaya Niva’ with 5.1 cm of a head length, 22.9 seeds per head and 1.12 g of seeds per head. The least indexes were found in the variety ‘Bezenchukskaya 205’ with 16.8 seeds per head and 0.76 g of seeds per head. It has been determined that a number and weight of seeds per head of the varieties changed proportionally to length of head. 1000-kernel weight ranged from 42.32 to 53.27g depending on the variety. The variety ‘Bezenchukskaya Niva’ produced the largest yield (34.1 hwt/ha), the variety ‘Bezenchukskaya 205’ showed the least productivity (19.6 hwt/ha).
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