Tag Archives: duration of the growing season

273–283 О.V. Tryhub, V.V. Liashenko, A.V. Bahan, S.M. Shakalii, S.O. Yurchenko, А.М. Rybalchenko, L.M. Kryvoruchko and V.M. Shevchuk
Manifestation of elements of seed productivity of plantsof the national collection of edible buckwheat (Fagopyrum Esculentum Moench.)
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Manifestation of elements of seed productivity of plantsof the national collection of edible buckwheat (Fagopyrum Esculentum Moench.)

О.V. Tryhub¹, V.V. Liashenko², A.V. Bahan³, S.M. Shakalii²*, S.O. Yurchenko³, А.М. Rybalchenko³, L.M. Kryvoruchko³ and V.M. Shevchuk²

¹Ustymivska Experimental Station of Plant Production of Plant Production Institute nd.a. V.Ya. Yuryev of National Academy of Agrarian Sciences of Ukraine, Ustymivka village, Hlobynskyi district, UA36003 Poltava region, Ukraine
²Poltava State Agrarian University, Educational and Research Institute of Agrotechnology, Breeding and Ecology, Department of Plant Science, 1/3, Skovorody Str., UA36003 Poltava, Ukraine
³Poltava State Agrarian University, Educational and Research Institute of Agrotechnology, Breeding and Ecology, Department of Breeding, Seed Science and Genetics, 1/3, Skovorody Str., UA36003 Poltava, Ukraine
*Correspondence: shakaliysveta@gmail.com

Abstract:

Today, a significant part of the zoned varieties of buckwheat (Fagopyrum esculentum Moench.) are included in the national collection and are constantly monitored for a complex of economically and breeding-important traits. The purpose of the study is to investigate the variability and interrelationships of seed productivity indicators in samples of the national collection of buckwheat in terms of productivity and precocity. The research material was 232 samples of the national collection of buckwheat in Ukraine. The research was conducted during 2007–2024 in the conditions of the Forest-Steppe of Ukraine (Ustymivsk Plant Research Station of the V.Ya. Yuryev Institute of Plant Production). According to the results of the research, the selected samples of buckwheat showed a yield level of more than 380 g m–2, plant and inflorescence productivity – more than 2.0 g and 0.05 g, respectively, and a weight of 1,000 grains of more than 22 g. Valuable sources of early maturity with a vegetation period of up to 72 days inclusive were identified. A high level of variation of the studied traits was established, in particular: yield, plant productivity, inflorescence productivity, lower branch attachment height, lower inflorescence attachment height (V = 23.4–50.0%). The weight of 1,000 grains, plant height, and the duration of the vegetation period had a low coefficient of variation (V = 23.4%), which indicated a stable manifestation of these traits. A strong relationship was noted between the height of the lower branch attachment and the height of the lower inflorescence attachment (r = 0.75), yield and plant productivity (r = 0.85). Correlations of medium strength were established between plant height and the duration of the growing season (r = 0.41), yield and inflorescence productivity (r = 0.64).

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774-784 I. Poliakova, O. Polyakov and K. Vedmedeva
Comparative analysis of oil flax varieties according to economically valuable traits in the Steppe zone of Ukraine
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Comparative analysis of oil flax varieties according to economically valuable traits in the Steppe zone of Ukraine

I. Poliakova¹*, O. Polyakov² and K. Vedmedeva²

¹Zaporizhzhia National University (ZNU), Ministry of Education and Science of Ukraine, 66 Zhukovskogo Str., UA69600 Zaporizhzhia, Ukraine
²Institute of Oilseed Crops, National Academy of Agrarian Sciences of Ukraine, 1 Institutskaya Str., UA69093 Sonyachne village, Zaporizhzhia oblast, Ukraine
*Correspondence: ira.linum@gmail.com

Abstract:

Interest in oil flax has been growing in recent decades. Linseed oil is a fast-drying oil and it is traditionally used in the production of linoleum, paints and coatings. Due to their content of essential polyunsaturated acids and vitamins, the growing use of flax seeds and oils in food and medicine has significantly increased the volume of its cultivation in different countries. This article presents the main research results for 2018−2020 of a large group of varieties of oil flax of Zaporizhzhia breeding for economically valuable traits. The purpose of research is to establish the genotypes that form the highest yields and oil content in arid conditions of the Steppe zone of Ukraine. It was found that the most productive year was 2020 due to more favorable temperatures and even distribution of precipitation during the growing season of oil flax. It was found that the yield of oil flax had a high correlation coefficient with weather conditions (r = 0.67) especially from precipitation in May-June (r = 0.60). A detailed study of the correlation between yield and habit traits and the main economically valuable traits revealed a close direct correlation between oil flax yield and seed weight per 1 plant (r = 0.99), yield and number of lateral stems per plant (r = 0.93), yield and number of bolls and seeds per 1 plant (r = 0.77), yield and weight of 1,000 seeds (r = 0.73), yield and duration of the growing season (r = 0.65). According to the results of three-year research, the highest yield was obtained from the variety Vodohrai 1.79 t ha-1. The highest oil content and oil yield per hectare were formed by varieties Vodohrai 50.1% and 0.80 t ha-1, Zolotystyi 49.7% and 0.76 t ha-1, Aisberh 48.3% and 0.72 t ha-1.

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