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Maryam Tatari, Ayoubali Ghasemi and Hadi Zeraatgar
One of the methods for breeding of fruit trees is the identification and selection of superior genotypes in different regions. Owing to climate changes in the recent years and the urgent need to changing the pattern of cultivation, it is essential to use adapted species to climatic conditions. Barberry is one of the plants that have been naturally grown in some areas of Isfahan province. For accessing the promising genotypes of barberry in Isfahan province, this research was carried out in the main areas of barberry growing. For this purpose, some physiological and pomological traits of about 100 barberry genotypes from different regions of Isfahan province were evaluated according to Union for the Protection of New Varieties of Plants descriptor. Evaluated traits were recorded in each year in four stages, including the physiological dormancy of the tree, the flowering, the vegetative growth of the tree as well as the ripening and harvesting time of berry stages from 2014 to 2016. According to the results, seven genotypes were selected, including Dolat Abad, Semirom, Dehaghan, Red leaf, and Evergreen genotypes as well as two wild genotypes. The results showed that the berry length ranged from 1.06 to 9 mm and the berry width ranged from 0.4 to 5.2 mm. The dried barberry per kilogram of fresh berries was between 200 and 700 g. The leaf length and leaf width of the studied genotypes were in the range 26–81 and 9–26 mm, respectively. The thorn length varied between 9 and 91 mm. The seed length and seed width were recorded in the range 0–4.5 and 0–2.6 mm, respectively. Dolat Abad and Dehaghan genotypes had the highest berry length and berry width, respectively. The most dried barberry per kilogram of fresh berries belonged to these two genotypes. Evergreen and Red leaf genotypes had the highest leaf length and leaf width, respectively. The highest seed length and seed width were observed in two wild genotypes of collected barberry. The results of correlation analysis of traits showed that tree growth vigor had a significant positive relationship with berry size, thorn length, seed length, and seed width. Berry firmness had negative correlation with berry length and berry width. On the basis of cluster analysis, genotypes were placed in three groups, so that genotypes from Dolat Abad, Semirom, and Dehaghan regions were placed in a same group. Red leaf and Evergreen genotypes with ornamental application were in another group, and two wild genotypes were also placed in the third group. Eventually, Dolat Abad, Semirom, and Dehaghan genotypes were introduced as the promising genotypes because of seedless berry with the highest berry length and berry width and the most dried barberry per kilogram of fresh berries.
Marko Ćaleta, Zoran Marčić, Ivana Buj, Davor Zanella, Perica Mustafić, Aljoša Duplić and Sven Horvatić
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Oto Hanuš, Václava Genčurová, Yunhai Zhang, Pavel Hering, Jaroslav Kopecký, Radoslava Jedelská, Alena Dolínková and Zdeněk Motyčka
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Jan Miciński, Grzegorz Zwierzchowski, Wojciech Barański, Magdalena Gołębiowska and Miroslav Maršálek
Locomotor activity and daily milk yield of dairy cows during the perioestrous period in successive lactations
The experiment was conducted in a herd of high-producing Holstein-Friesian cows, using the AfiFarm Herd Management Software, to analyze their locomotor activity during 236 oestruses in relation to the daily milk yield determined during the periooestrous period in four successive production and reproductive cycles. Day "0" was the day of the observed oestrus. Locomotor activity and milk production levels were monitored five days before and five days after oestrus. A correlation was noted between high milk yield and the reproductive performance of cows. An increase in milk yield was accompanied by extended inter-pregnancy and inter-calving intervals and a drop in the insemination index which also tended to decrease in multiparous cows. Primiparous and the highest-yielding cows were characterized by the highest levels of locomotor activity. The physical activity of cows increased by around 67% during oestrus. However, daily milk yield declined at oestrus, compared with the average milk production levels determined five days before and five days after oestrus in each lactation. The installation of pedometers supported the detection of oestrus, including silent oestrus, in dairy cows, and the AfiFarm system was found to be an effective tool for dairy farming and herd management.
Houshang Nosrati, Mohammad Ali Husainpourfeizi, Mina Khorasani, Ahmad Razban-Haghighi and Maryam Nikniazi
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Mikołaj Knaflewski, Alina Kałużewicz, Wenjing Chen, Anna Zaworska and Włodzimierz Krzesiński
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