Uman NUH | today: 10/16/2024
| Author(s) |
Novak Zh.M., Candidate of Agricultural Sciences, , Uman National University of Horticulture, Ukraine Kyzhanjvskiy V.G., Candidate of Agricultural Sciences, , Uman National University of Horticulture, Ukraine Синьоок І. В., , , |
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| Category | The Agronomy | ||
| year | 2023 | issue | Issue number 103. Part 1 |
| pages | 126-136 | index UDK | 632.112-021.484:575.827:581.14]633.112 | DOI | 10.32782/2415-8240-2023-103-1-126-136 (Link) |
| Abstract | The processes of growth, development of plants and their productivity are interrelated. Determining the correlation between indicators makes it possible to establish which components of the crop structure can be used to increase plant productivity and increase the efficiency of breeding work. During 2022-2023, 12 hybrid populations of F5 durum spring wheat were analyzed and compared with the Chado variety (standard). The repetition is four times, the accounting area of the site is 4 m2. Sowing should be carried out on March 24 in 2022 and March 16 in 2023. F5 populations of durum spring wheat 266 /23, 269 /23 and 275 /23 are short, others are medium. The length of the ear of the breeding material was 5.3–6.2 cm on average, which was 1.1–2.0 cm less than the Chado variety, and the number of ears in the ear was 20.6–23.0 pcs., which exceeded the standard indicator for 1.9–4.6 pcs. The weight of 1000 grains of F5 hybrid populations averaged 43.8–56.9 g over two years of research, which differed from the standard data by (-10.4) – 2.7 g. The F5 273/23 population reliably outperformed the Chado variety for two years. Biotypes 263/23, 266/23, 268/23, 269/23 were significantly inferior to it, samples 270/23, 271/23 and 272/23 were at the standard level. The F5 274/23 hybrid population significantly exceeded the standard in 2022. The productivity of one plant of the analyzed populations was on average 1.91–2.62 g, which differed from the data of the standard by (-0.12) – 0.59 g. In biotypes 270/23, 271/23, 272/23, 273/23, 274/23 and 275/23, this indicator was not inferior to the standard. A weak positive correlation was noted between plant height and spike length; weak negative – between the productivity of one plant and plant height and spike length; average – between the mass of 1000 grains and the productivity of one plant; average negative – between the number of ears in an ear and the height of the plants and the length of the ear; a strong positive relationship was observed between the number of spikelets in a spike and the productivity of one plant. | ||
| Key words | F5 hybrid populations, durum wheat, plant height, plant productivity, correlation | ||