Document Type : Release of the variety
Authors
1
Deputy, Head of Cereal Research Dept., SPII, AREEO
2
Seed and Plant Improvement Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran.
3
Seed and Plant Improvement Research Department, Isfahan Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Isfahan, Iran.
4
Seed and Plant Improvement Research Department, Kerman Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Kerman, Iran.
5
Seed and Plant Improvement Research Department, Khorasan Razavi Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Mashhad, Iran.
6
Seed and Plant Certification and Registration Institute, Yazd Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Yazd, Iran.
7
Seed and Plant Certification and Registration Institute, South Khorasan Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Birjand, Iran.
Abstract
Salinity is one of the most important abiotic stresses limiting the productivity of crop plants in arid and semiarid areas around the world. Irrigated barley is grown on about 300,000 hectares in the temperate agro-climate zone of Iran where the salinity is a major constrain of barley production. Barley cultivar Khatam is derived from the cross between cultivars Sahra and Kavir as female and male parents, respectively, at Varamin station and subsequent selection among segregating populations was done at experimental field of Seed and Plant Improvement Institute-Cereal Breeding Department in Karaj. Results of yield trials and on-farm evaluations in the temperate zone showed that under high and low salinity stress conditions (EC of 8-12 and 4-8 dS, respectively), Khatam exhibited a superior performance compared to the check cultivars Nosrat, Walfajr, Rihane 03 and its average grain yield was 600 kg higher than average grain yield of check cultivars. Khatam has facultative growth habit and its height under normal and stress conditions is 90 and 65 cm, respectively. Khatam exhibits lodging resistance and has non-shattering rachis but has moderately susceptible infection responses to yellow rust, powdery mildew and stripe disease of barley. However, under dry conditions of areas around deserts of Iran no susceptibility to these diseases is observed. Khatam is a six-rowed cultivar and its specific characteristic is adaptability to the dry conditions of saline and fairly saline marginal lands around the Loot and Namak deserts of Iran.
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