Uman NUH | today: 04/16/2024
| Author(s) | Карпенко В. В., , , | ||
|---|---|---|---|
| Category | The Agronomy | ||
| year | 2023 | issue | Issue number 103. Part 1 |
| pages | 34-41 | index UDK | 633.11:[57.018.6+581.144.4:631.86/.87] | DOI | 10.32782/2415-8240-2023-103-1-34-41 (Link) |
| Abstract | The purpose of the article is to determine the changes in the formation of the area of the leaf apparatus of winter triticale and the content of chlorophyll in it due to the use of biological preparations of microbial origin. Methods. Field, laboratory, measurement, calculation and comparison, statistical analysis. The results. It was established that in the phase of the appearance of the flag leaf in 2021, with the pre-sowing treatment of winter triticale seeds with Melanoriz and Biozlak, the area of triticale leaves exceeded the control indicators by 3,7 and 2,2 cm2/plant, respectively. With the application of Bactophyt at the rates of 2,0–3,0 l/ha, a tendency to increase the area of the leaf apparatus relative to the control by 2,4–7,0 cm2/plant was observed, in accordance with the biofungicide rates. The application of the given norms of Bactophyte against the background of seed bacteriization with Biozlak and Melanorhiz had a much more active effect on the formation of the leaf apparatus, which contributed to the increase in the area of leaves compared to the control variant of the experiment in accordance with the norms of the biofungicide by 5,1–11,7 cm2/plant in accordance with the norms of the biofungicide. A similar regularity between the type and method of application of MBP was noted in subsequent years of research. When determining the content of photosynthetic pigments in the phase of the appearance of a flag leaf during the pre-sowing treatment of winter triticale seeds with Melanoriz and Biozlak, a tendency to increase the content of pigments was observed, in particular, the content of chlorophyll a compared to the control increased by 0,14 and 0,12, respectively; chlorophyll b – by 0,04 and 0,03; the amount of chlorophylls (a+b) – by 0,17 and 0,15 mg/g of raw substance. Treatment of crops with Bactophyt at rates of 2,0–3,0 l/ha contributed to the increase in the accumulation of photosynthetic pigments. Thus, compared to the control version of the experiment, the content of chlorophyll an increased by 0,13–0,28; chlorophyll b – by 0,03–0,06; the amount of chlorophylls (a+b) – by 0,16–0,34 mg/g of raw substance in accordance with biofungicide norms. Bacterization of winter triticale seeds with microbial preparations followed by spraying crops with a biofungicide showed greater efficiency in terms of pigment accumulation. Conclusions. The most significant increases in the area of the leaf apparatus were noted for spraying crops with Bactophyte against the background of seed treatment before sowing with Melanorhiz, where, compared to the control, the leaf area increased by 21–23%, the content of chlorophyll a – by 17–28 %, chlorophyll b – by 9–17 % , the sum of chlorophylls (a+b) – by 15–24 % according to Bactophyte norms. | ||
| Key words | leaf area, pigment content, biological preparations, winter triticale | ||