BIO Web Conf.
Volume 32, 2021III International Scientific and Practical Conference “Problems and Prospects of Scientific and Innovative Support of the Agro-Industrial Complex of the Regions” 2021
|Number of page(s)||4|
|Section||Actual problems of plant protection|
|Published online||13 August 2021|
Formation of the leaf surface area of spring wheat in various cultivation technologies
FSBSI “Federal Agricultural Kursk Research Center” 70b, Karl Marx St., Kursk, 305021, Russia
* Corresponding author: firstname.lastname@example.org
The article analyzes the research on the formation of the leaf surface area of spring wheat of Darya variety in different cultivation technologies on the chernozem soil of Kursk Region. The aim of the research was to study the peculiarities of the formation of the leaf surface of spring wheat depending on the cultivation technology and to identify the conjugate relationships of indicators under the conditions of chernozem soils of Kursk Region. The results of the conducted studies indicate that intensive cultivation technology contributes to the activation of the assimilation apparatus of leaves during the entire growing season of the crop. A high direct correlation between the leaf surface area in the Z 13 and Z 55 phases and the application of mineral fertilizers was established (r = 0.73; 0.80, respectively). At Z 25 the leaf surface area has a direct noticeable relationship with primary tillage (r = 0.51) and a moderate one with the application of mineral fertilizers (r = 0.36). The use of sugar beet tops as organic fertilizer had a positive effect on the leaf area of one plant at Z 25 and Z 55, as evidenced by a noticeable correlation (r = 0.52; 0.52, respectively). It was found that the area of the flag leaf, as well as its length and width, increased with a decrease in the density of standing plants per square meter of cropped area. The flag leaf area and width decreased depending on the height of the plants, while the length increased. The development of the flag leaf area directly affected the accumulation of dry weight of plants (r = 0.53), the formation of the total assimilation surface of plants (r = 0.72), as well as a high direct relationship with the length of the ear (r = 0.75), which in turn is closely directly correlated with the weight of grain from one ear (r = 0.70). Thus, the evidence of the direct influence of the area of the flag leaf on the formation of the crop yield is presented.
Key words: spring wheat / leaf surface area / flag sheet areas / cultivation technologies / related links / correlation relationship
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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