Document Type : Release of the variety
Authors
1
Assistant professor, Seed and Plant Improvement Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran.
2
Associate professor, Seed and Plant Improvement Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran.
3
Associate professor, Horticulture and Crops Research Department, East Azarbaijan Agricultural and Natural Resources Research and Education Center, AREEO, Tabriz, Iran.
4
Associate professor, Agronomy and Horticulture Department, Yazd Agricultural and Natural Resources Research and Training Center, Agricultural Research, Education and Extension Organization (AREEO), Yazd, Iran
5
Assistant professor, Agronomy and Horticulture Department, Lorestan Agricultural and Natural Resources Research and Training Center, Agricultural Research, Education and Extension Organization (AREEO), Borojerd, Iran
6
Assistant professor, Agronomy and Horticulture Department, West Azerbaijan Agricultural and Natural Resources Research and Training Center, Agricultural Research, Education and Extension Organization (AREEO), Khoi, Iran
7
Researcher, Agronomy and Horticulture Department, Khorasan Razavi Agricultural and Natural Resources Research and Training Center, Agricultural Research, Education and Extension Organization (AREEO), Mashad,, Iran
8
Researcher, Agronomy and Horticulture Department, Zanjan Agricultural and Natural Resources Research and Training Center, Agricultural Research, Education and Extension Organization (AREEO), Zanjan, Iran
9
Associate professor, Iranian Research Institute of Plant Protection, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran
10
Associate professor, Agronomy and Horticulture Department, Golestan Agricultural and Natural Resources Research and Training Center, Agricultural Research, Education and Extension Organization (AREEO), Gorgan, Iran
11
Researcher, Agronomy and Horticulture Department, Hamedan Agricultural and Natural Resources Research and Training Center, Agricultural Research, Education and Extension Organization (AREEO), Hamedan, Iran
10.22092/rafhc.2025.366631.1347
Abstract
Breeding of genotypes with high forage yield and broad and narrow-sense adaptability to the main forage production areas of the country, plays a significant role in the sustainability of alfalfa forage production. Alfalfa cultivar Mandegar (KFA6) is the result of breeding of Galebani genotype from Gharahyunjeh population. This genotype has been subjected to mass selection since 2010 in two stages. Improved genotype (KFA6) was cultivated in an isolated field and polycross crosses were performed between all plants. The preliminary yield trial of the improved genotype (KFA6) with 31 genotypes, including the primary Galebani genotype, was conducted in a randomized complete block design with three replications for two years (2012 and 2013) in Karaj. The average of dry forage yield of the improved genotype KFA6 was higher than the average of 31 genotypes and also the average yield of the primary Galebani genotype and genotypes of the source of Gharahyunjeh population with a non-significant difference at 5% probability level. In order to compare forage yield and determine the adaptability (agronomic value), the improved genotype of KFA6 along with 9 dominant genotypes of cold and temperate cold regions of the country were studied in a randomized complete block design with three replications in five regions of Karaj, Tabriz, Khoy, Borujerd and Mashhad during 2016 to 2018. The results showed that the improved genotype of KFA6 with an average of annual dry forage yield of 14 tha-1 had an increase of 2.36 tha-1 compared to the initial Galebani genotype and also based on the stability statistic of the calculated superiority this genotype was a stable genotype with a value of 2.62 compared to the average value of studied genotypes. The values of crude protein (CP), acid detergent insoluble fiber (ADF), crude fiber (CF) and total ash in the improved genotype of KFA6 were 18.75, 34.8, 39.49 and 7.42%, respectively, with a non-significant difference at 5% probability level. The new genotype of KFA6 with an average of 185.7 kgha-1 per year of biological fixation of nitrogen, the average water productivity based on dry forage yield and total biomass in full irrigation conditions equal to 1.10 and 1.69 kgm-3, respectively, and its higher tolerance to alfalfa mosaic virus disease was an advantage over the other native genotypes. According to the all results, this genotype was named and introduced in the cold and temperate cold regions of Iran as Mandegar alfalfa cultivar.
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