Development of Puccinia striiformis in a susceptible winter wheat variety

Soft winter wheat variety Yuvivata 60 has been characterized according to its economically valuable indices. Its morphological features and biological characteristics have been described. The uniqueness of the Yuvivata 60 genotype has been determined. It is related to a number of ontogenetical peculiarities, ecological and adaptive mechanisms: high ecological plasticity of plants due to genetical heterogeneity that proves inhomogeneity of phenetic markers – spectres of proteins-gliadins, high crop capacity of grain (with the potential of 10 tonnes/hectare) due to high reproductive ability, viz.: multifloweredness (up to 60 flowers in an ear), multispiculateness (up to 23) and ear grain content (96%); high quality of grain (with the amount of protein up to 16%, gluten up to 34%); forming a strong root system (prolonged coleoptile – up to 6 cm, deep and branched bedding of primary and secondary radicles in spring with optimal sowing terms between 25–30 September); medium photoperiod susceptibility and highly active renewal of spring bunch-formation (the variety of prolonged daylight hours); synchronic development of spring shoots (low percentage of aftersprings, earless stems); high photosynthetic productivity of crops (7 g/m2/day conditioned by continuous functioning of the leaf apparatus of the first and second layers, awns and ear); resistance to lodging side by side with medium-growth and high crop capacity of the grain due to a strong and incrassate stem; high resistance to sprouting within the ear (caused by a long latent period); resistance to pests and pathogenic agents of fungus infections, viz. septoriose, yellow stripe rust and various kinds of brand (8–9 points), medium resistance to leaf and stem rust, as well as oidium (5–7 points); high resistance to anomalies of climatope in the autumn-winter and spring-summer periods (drought resistance 8–9 points, winter and frost resistance above average – 7 points). Keywords soft winter wheat, high crop capacity, agricultural and ecological peculiarities, economically valuable characteristics, donor of determining insusceptibility to photoperiod.

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Occurrence of genetic lineages of Puccinia Striiformis in Latvia

10.22616/rrd.26.2020.004 ◽

2020 ◽

Author(s):

Liga Feodorova-Fedotova ◽

◽

Biruta Bankina ◽

Keyword(s):

Winter Wheat ◽

Puccinia Striiformis ◽

Yellow Rust ◽

Wheat Variety ◽

Reference Center ◽

Genetic Lineages ◽

Local Variety ◽

Wheat Leaf ◽

Differential Varieties ◽

Broad Scale

Puccinia striiformis is a biotrophic pathogen able to cause broad scale epidemics in wheat growing regions. P. striiformis is genetically highly variable pathogen. New, aggressive genetic lineages, adapted to warm temperatures have been observed in the last decades worldwide. The study aimed to ascertain the structure of genetic lineages of P. striiformis in Latvia. Forty one wheat leaf samples with yellow rust symptoms were collected in 2017–2019. Fenotyping and genotyping methods were used for identification of genetic lineages in Global Rust Reference Center, Denmark. Assessments of leaf diseases on winter wheat differentials – ‘Ambition’, ‘Mariboss’, ‘Moro’, ‘Compair’, ‘Rendezvous’, ‘Spalding Prolific’ and local variety ’Fredis’ were made during the research. Five genetic lineages of P. striiformis – PstS4, PstS7, PstS10, PstS13 and PstS14 were found. 56% from the samples belonged to PstS14, 17.1% PstS10, 12.2% PstS4 and PstS7, 2.4% PstS13. Genetic lineages identified from Latvian wheat samples are found in the biggest cereal growing regions in Europe and are able to cause epidemics on wheat. Genetic lineages of P. striiformis from Latvian samples have not been identified before. All differential varieties were infected with P. striiformis in 2017, ‘Ambition’ and ‘Moro’ in 2018, no infection was observed on differentials in 2019 despite the presence of P. striiformis on winter wheat variety ‘Fredis’. The identification of genetic lineages of P. striiformis on wheat in Latvia is necessary to continue.

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Winter Wheat Variety Response to Flag Leaf Foliar Fungicide Application in 2019–2020

Kansas Agricultural Experiment Station Research Reports ◽

10.4148/2378-5977.8093 ◽

2021 ◽

Vol 7 (5) ◽

Author(s):

G. Cruppe ◽

B. R. Jaenisch ◽

R. P. Lollato

Keyword(s):

Winter Wheat ◽

Flag Leaf ◽

Wheat Variety ◽

Winter Wheat Variety ◽

Fungicide Application ◽

Foliar Fungicide

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Winter Wheat Variety Test, Triticale Variety Test

10.31274/farmprogressreports-180814-2372 ◽

2003 ◽

Author(s):

Ronald Skrdla ◽

Jean-Luc Jannink

Keyword(s):

Winter Wheat ◽

Wheat Variety ◽

Winter Wheat Variety

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Development of the new winter wheat variety Skorpion with blue grain

Czech Journal of Genetics and Plant Breeding ◽

10.17221/7/2013-cjgpb ◽

2013 ◽

Vol 49 (No. 2) ◽

pp. 90-94 ◽

Cited By ~ 8

Author(s):

P. Martinek ◽

M. Škorpík ◽

J. Chrpová ◽

J. Fučík P Schweiger

Keyword(s):

Winter Wheat ◽

Food Industry ◽

Wheat Variety ◽

Wheat Varieties ◽

Winter Wheat Variety ◽

Grain Colour ◽

Antioxidant Effects ◽

Crop Research ◽

Winter Wheat Varieties

Breeding wheat with blue grain was conducted at the Crop Research Institute in Prague. Initial donor material came from the legacy of Erich von Tschermak-Seysenegg. Long-term crosses with a series of winter wheat varieties were made with the aim of transferring blue grain colour into cultivated varieties. The prospective material was later handed over to Agrotest Fyto, Ltd., Kroměříž, where line no. 6 was selected from the population RU 440. At the end of 2011, the new winter wheat variety Skorpion with blue grain was registered in Austria. It is intended for special use in the food industry. The anthocyanins which it contains are considered to offer health benefits due to their antioxidant effects.

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