Sources of agronomically important traits for breeding of soft spring wheat (Triticum aestivum L.) in the forest steppe of Novosibirsk region
The efficiency of donors in plant breeding depends on the degree of knowledge of the physiological and genetic background of agronomic characters. The research is aimed to assess quantitative agronomic traits (1000-grain weight, grain weight, grain number per spike and spikelet number per spike) in...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Siberian Branch of the Russian Academy of Sciences, Federal Research Center Institute of Cytology and Genetics, The Vavilov Society of Geneticists and Breeders
2016-08-01
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| Series: | Вавиловский журнал генетики и селекции |
| Subjects: | |
| Online Access: | https://vavilov.elpub.ru/jour/article/view/632 |
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| Summary: | The efficiency of donors in plant breeding depends on the degree of knowledge of the physiological and genetic background of agronomic characters. The research is aimed to assess quantitative agronomic traits (1000-grain weight, grain weight, grain number per spike and spikelet number per spike) in soft spring wheat varieties with different maturation timing in order to identify genotypes that show the best adaptation to the regional environment, high yield and resistance to stress. Agronomic traits were studied in 139 soft spring wheat varieties in contrasting years. The cultivars were divided into the following maturation groups: mid-early and early (31 plants), middle (94 plants) and mid-late (14 plants). In the mid-early and early group, Leningradskaya 97 and Rosinka 1 had three measures of maturation (grain weight per spike, grain number per spike, and spikelet number per spike) higher than the group average. In the middle group, Baganskaya 51, Prokhorovka, Omskaya kormovaya, Amir and Lada each had two or more measures significantly higher than the group average. In the midlate group, the winners were Omskaya 24 (grain weight per spike, grain number per spike and spikelet number per spike), Sibirskaya 16 (grain weight per spike and spikelet number per spike) and Ishimskaya 98 (1000-grain weight and spikelet number per spike). Varieties identified and characterized in this way can be used in the selection process as a source of higher 1000-grain weight, grain number per spike, spikelet number per spike and grain weight per spike. A tendency towards increase has been demonstrated for 1000-grain weight, spikelet number per spike and grain weight per spike depending on the length of the growing season. No reduction in vegetation period was observed in epiphytotic years in susceptible varieties as compared to resistant varieties. |
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| ISSN: | 2500-3259 |