The variability and breeding value of Armenian wheats

Dorofeev, V. F.

doi:10.1007/bf00056247

Cited by 11 publications

(13 citation statements)

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“…fuliginosum (Zhukovsky and Migushova, 1969). The ears are dark, and are shorter (3.5-4.5 cm), wider and even more compact (50-70 spikelets/10 cm of spike rachis; Dorofeev, 1976) than those of T. timopheevii, differing from the latter in having naked grains and black awns (3-5 cm). T. militinae is the only free-threshing tetraploid species in the Boeoticum subgenus.…”

Section: Origin and Descriptionmentioning

confidence: 90%

“…Rostrup). However, according to Dorofeev (1976), poor yields, hulled brittle ears and susceptibility to stripe and stem rusts make it difficult to use this species in wheat breeding. Wide intraspecific diversity, accompanied by chromosomal aberrations, mainly translocations, has been found in this form of the species (Kawahara and Tanaka, 1981;Badaeva et al, 1994a;1995a).…”

Section: Origin and Descriptionmentioning

confidence: 99%

“…Zhukovsky (1928 described the form as follows: The plants have thick pubescence, characteristic of the species, consisting of long white tough hairs on the leaf-sheaths, with thinner pubescence on the leafblades. The ears are compact (40-45 spikelets/10 cm of spike rachis; Dorofeev, 1976), broad, pyramidal and flattened, with the width considerably exceeding the thickness. Only forms with pubescent ears are known.…”

Section: Origin and Descriptionmentioning

confidence: 99%

“…militinae is considered to be a spontaneous mutant of T. timopheevii (Dorofeev, 1976), but it has also been supposed to originate from an introgressive hybridization between T. timopheevii and T. persicum (Navruzbekov, 1981).…”

Section: Origin and Descriptionmentioning

confidence: 99%

“…According to Dorofeev (1976), the wild form of timopheevii wheat is resistant to powdery mildew and loose smut but has no resistance to leaf (brown) rust (caused by Puccinia recondita Rob. ex Desm,), yellow (stripe) rust (caused by Puccinia striiformis Westend.)…”

Section: Triticum Araraticummentioning

confidence: 99%

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Tetraploid wheat species Triticum timopheevii and Triticum militinae in common wheat improvement

Järve

Jakobson

Enno

2002

Acta Agronomica Hungarica

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Timopheevii wheats are discussed as donors for improving the disease resistance of common wheat. Attention is paid to the comparison of the morphological and chromosomal characteristics of Triticum timopheevii and T. militinae, their crossability with T. aestivum and their response to fungal diseases. The possible origin of T. militinae from an introgressive hybridization between T. timopheevii and an unknown species is discussed. Major genes for resistance to various fungal diseases, transferred to common wheat from T. timopheevii, are listed.

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Section: Origin and Descriptionmentioning

confidence: 90%

Section: Origin and Descriptionmentioning

confidence: 99%

Section: Origin and Descriptionmentioning

confidence: 99%

Section: Origin and Descriptionmentioning

confidence: 99%

Section: Triticum Araraticummentioning

confidence: 99%

See 3 more Smart Citations

Tetraploid wheat species Triticum timopheevii and Triticum militinae in common wheat improvement

Järve

Jakobson

Enno

2002

Acta Agronomica Hungarica

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Triticum L.

Feldman,

Levy

2023

Wheat Evolution and Domestication

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In this chapter, the taxonomical complexities of the genus Triticum are presented. Following the biological concept of species, the genus contains six species, two diploids, two tetraploid, and two hexaploids. The characteristic morphology of the genus and that of the wild forms, their geographic distribution, and ecological affinities, as well as their preadaptation for domestication and the processes leading to wheat domestication are reported. The origin and evolution of the diploid species, and the genome analysis of the allopolyploids are reviewed. Origin of the A, B, and D subgenomes of allopolyploid wheats, are presented. The relationships between Triticum species and other Triticineae are discussed.

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Genes conferring low seedling reaction to Mexican pathotypes of Puccinia recondita f. sp. tritici, and adult-plant responses of recent wheat cultivars from the former USSR

1995

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Fifty-five spring bread wheat (Triticum aestivum L .) cultivars, mostly released between 1975 and 1991 in eight leaf rust-prone spring wheat growing regions of the former USSR, were tested in the seedling growth stage for reaction to 15 Mexican pathotypes of Puccinia recondita f. sp . tritici . In total, seven known and at least two unknown genes were identified, either singly or in combinations : Lr3 (7 cultivars), Lr10 (14), Lr13 (5), Lr14a (1), Lr16 (1), Lr23 (3); the unknown genes were identified in 14 cultivars . The first unknown gene could be either Lr9, Lr19, or Lr25; however, the second unknown gene in 9 cultivars was different from any named gene . Twelve of the 15 pathotypes are virulent for this gene, hence its use in breeding for resistance will be limited . The cultivars were also evaluated at two field locations in Mexico with two pathotypes in separate experiments. The area under the disease progress curve and the final disease rating of the cultivars indicated genetic diversity for genes conferring adult plant resistance . Based on the symptoms of the leaf tip necrosis in adult plants, resistance gene Lr34 could be present in at least 20 cultivars . More than half of the cultivars carry high to moderate levels of adult plant resistance and were distributed in each region .

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The variability and breeding value of Armenian wheats

Cited by 11 publications

References 0 publications

Tetraploid wheat species Triticum timopheevii and Triticum militinae in common wheat improvement

Tetraploid wheat species Triticum timopheevii and Triticum militinae in common wheat improvement

Triticum L.

Genes conferring low seedling reaction to Mexican pathotypes of Puccinia recondita f. sp. tritici, and adult-plant responses of recent wheat cultivars from the former USSR

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