Abstract

The paper reports the evaluation of wild forms of alsike clover (Trifolium hybridum L.) of different geographical origin in the year of sowing (first year grass canopy) under unstable moisture level conditions in the Central Black Earth Region compared to the local varieties. Twenty cultivars and wild forms were studied, including the Novator (standard), Pervenets, and Fregat cultivars, and wild forms from the Northwestern, Central, Volgo-Vyatka, and Central Black Earth Regions, Tatarstan, Chuvashiya, Canada, etc.). The work was carried out in two collection nurseries in the Belgorod oblast on typical black soil in 2022–2023. Novator (standard) and Pervenets, as well as the wild forms from Canada (VIK 8), Tatarstan (VIK no. 753), and the Moscow (M-2/21) and Belgorod (B-2/20) oblasts showed the highest 2-year average of dry matter yield in the year of sowing (0.411–0.504 kg/m²). The M-2/21 form is of particular value. With the dry matter yield in the year of sowing in 2022 at the level of the standard (0.416 kg/m²), this accession gave the yield of 0.672 kg/m² in 2023, which statistically significantly exceed the standard by 0.165 kg/m², or by 32.5%. On average for the 2 years, the samples showed significant morphological diversity and variation in the stem length (43.1–57.6 cm), weight of one stem (1.6–3.5 g), and foliage rate (26.5–50.1%). When evaluating hybrid clover forms for productivity in the year of sowing, the most reliable characters may be stem length (r = 0.514) and weight (r = 0.599), the degree of anthocyanin coloration of the stem (r = 0.501), and leaf area (r = 0.521). Cluster analysis allows for identifying valuable breeding samples based on a combination of correlated breeding traits with high level of significance.

中文翻译：

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中部黑土区不同产地杂交三叶草育种形式及品种评价

摘要

本文报告了在中部黑土地区不稳定的水分条件下，不同地理来源的三叶草（Trifoliumhybridum L.）野生品种在播种当年（第一年草冠）与当地品种的比较。研究了二十个品种和野生品种，包括 Novator（标准）、Pervenets 和 Fregat 品种，以及来自西北、中部、伏尔加-维亚特卡和中部黑土地区、鞑靼斯坦、楚瓦希亚、加拿大等的野生品种。这项工作于 2022 年至 2023 年在别尔哥罗德州典型黑土上的两个收集苗圃进行。Novator（标准）和 Pervenets，以及来自加拿大 (VIK 8)、鞑靼斯坦 (VIK no. 753)、莫斯科 (M-2/21) 和别尔哥罗德 (B-2/20) 州的野生形式显示播种当年干物质产量的两年平均值最高（0.411-0.504 kg/m ²）。M-2/21 形式具有特殊价值。2022年播种当年的干物质产量达到标准水平（0.416 kg/m ²），该品种2023年的产量为0.672 kg/m ²，统计上显着超出标准0.165 kg/m 2 。 m ²，或32.5%。平均两年来，样品在茎长（43.1-57.6 cm）、单茎重量（1.6-3.5 g）和出叶率（26.5-50.1%）方面表现出显着的形态多样性和变化。在评估播种当年的杂交三叶草形态时，最可靠的特征可能是茎长度（r  = 0.514）和重量（r = 0.599）、茎花青素着色程度（r = 0.501）和叶子面积（r = 0.521）。聚类分析可以根据具有高显着性的相关育种性状的组合来识别有价值的育种样本。