Response of oil flax varieties to abiotic conditions of the Middle Cis-Ural region by formation of seed yield

Abstract

Studying the reaction to the abiotic conditions of the Middle Urals in 16 varieties of oil flax will allow to adapt the culture: increase its productivity and product quality. As a standard, the variety ‘VNIIMK 620’ was sown. The experiments were laid on sod-podzolic medium loamy soil in the grain-grass rotation after winter crops during 2012-2015. During the years of research, the plow layer of the experimental plots had different humus contents - medium and high, mobile phosphorus and exchange potassium - medium and very high, exchange soil acidity - slightly acidic and close to neutral. To a greater extent, by 91.5%, the change in the seed yield of the studied oil flax varieties depended on the abiotic conditions of the growing season; the share of the influence of the genotype of the variety in the formation of seed yield was 3.0%. Meteorological conditions during the years of the experiments were characterized by large fluctuations in the average daily air temperature and the amount of precipitation that fell over the months, in consequence of this the seed yield of flax oil varied in wide range over both varieties and years of study. The most favorable abiotic conditions for the formation of oil flax seeds were formed in 2014, when, during the ripening period of the seeds optimal meteorological conditions have developed with hydro thermic factor of 1.0. This contributed to obtaining the highest seed yield in 2014 - 218 g/m2. On average, over four years of research, the same response to abiotic conditions with seed yield was formed in ‘VNIIMK 620’ varieties from Russia, ‘Clark’ varieties from Holland and ‘Barbara’ from Hungary. The most plastic grade is ‘Clark’ with a plasticity coefficient bi = 1.33. The most stable seed yield is the ‘Norlin’ variety with a stability coefficient of 32.2. Russian varieties ‘LM-96’, ‘N 3829’ and foreign varieties ‘Norlin’, ‘Atalante’ proved to be the most adaptable to cultivation conditions in the agroecological conditions of the Cis-Ural region and can be considered promising in terms used as starting material in the breeding process.

Effect of Fertilization with N-Inhibitors on Root and Crop Development of Flaxseed Crop (Linum usitatissimum L.)

“…It can be concluded that the main factor that significantly affects the performance is the climate since Khajani, Irannezhad, Majidian, & Oraki (2012) observed that almost double of seed yield (2384.28 kg/ha) was recorded on the climate of Iran. Goreeva, Korepanova, Fatykhov, & Islamova (2020) also mentioned that 91.5% of the seed yield in flax cultivation was affected by environment and abiotic factors and 3% from genetic factors.…”

Effect of Tillage and Crop Rotation on Cereal Crops Yield in the Urals of the Nonblack Earth Zone of Russia

“…This includes the increasing wear and tear of the farm machinery stock at a lower replacement rate for new machinery, lower incomes, as well as reduced soil fertility due to prolonged irrational use. In such a case, a combination of methods is applied, when a high result is reached at a minimal cost, namely, the tillage at the lowest acceptable level and the use of seeders of combined type [5], [6]. The result was lower costs when arable land productivity was equal for control (standard tillage methods) and experimental plots.…”

Morphological and molecular characterization of flax (Linum usitatissimum L.) accessions obtained from different locations in Turkey

“…In addition, it is reported to be one of the oldest crops plants cultivated(Shivaraj et al 2019;Cassuto et al 2022). It is known that ax has the ability to adaptation to extreme conditions and has a culture area(Bourmaud et al 2013;Goreeva et al 2020;Li et al 2022).With respect to the plantation of the cultivar/genotypes considered, 63 out of 80 ax emerged at the trial conditions. Amid the emerged ax cultivar/genotypes, Bison, Mcduff, Hermes, Eckendor , and Mapun genotypes were for the rst time assayed in Turkey.…”