The article presents the results of studies evaluating the influence of growth stimulants and micronutrient fertilizers on the productivity and sowing qualities of Crambe Abyssinica. Growth regulators Albit - 40 ml/t, Gumat K/Na - 0.15 l/t and microelement fertilizers EcoFus - 0.5 l/t and Omex - 2 l/t were studied. Studies have shown that the most effective options are with seed treatment with the growth regulator Albit and the combined use of Albit + Omex. Here the greatest positive effect was obtained on the indicator of field germination of krambe (89.6%) and on the safety of plants for harvesting (96.8%), respectively. It was revealed that the variant with the use of Albit, Gumat K/Na + Omex and Albit + Omex most effectively increased the seed yield of Crambe, the seed productivity here was 2.92; 2.93 and 2.96 t / ha, respectively. These options stimulated germination energy by 1.8-4.7% and laboratory germination by 3.8-9.1% relative to the control. The krambe oil content in the experimental variants was 36.14-39.76%, in the control - 36.04%. The highest oil content of seeds was noted on the variant with Albit - 39.76%. The use of Albit in combination with EcoFus and Omex contributes to the accumulation of oil in seeds up to 38.55 and 38.68%, respectively. The weight of 1000 seeds of Crambe varied in the range of 8.16-8.38 g in the variants with the use of drugs and 8.13 g in the variant without treatment. The germination energy and laboratory germination rate of Crambe Abyssinica varied between 52.7-79.8% and 69.5-86.5%, depending on the use of the preparations.
The aim of this research is to assess the varieties of winter camelina in terms of productivity and adaptability in a contrast agroclimatic environment of the Middle Volga region and the region of steppe Crimea in 2016–2018. The climate of the Middle Volga region is moderately continental. The precipitation varies from 350 to 750 mm a year. The average year temperature is 5.3 °C. The climate of the steppe Crimea region is continental. The average year temperature here is 15.1 °C and the precipitation varies between 350 and 450 mm a year. In average the yield of different camelina varieties fluctuated between 1.59 and 1.83 t/ha, depending on the environment condition index (Ii -0.19–0.46). In the Penza region, the Kozir and Baron varieties gave the biggest yield with the productivity of crops equal to 1.80 and 1.83 t/ha respectively. In Crimea, the biggest yield was given by the Dikiy variety (1.74 t/ha). The variability of productivity is low at 7.4–10.1% and medium at 11.5–13.2%. The Baron variety has a low variation factor (7.4 and 11.5%) regardless of a cultivation region. All varieties had high stability which was 1.20–1.25 and 1.30–1.46 depending on a region. The Baron and Kozir varieties had the highest stability reaching 1.46 and 1.25 respectively. All varieties had a high index of stability for this crop, equal to 0.50–0.59. Camelina is tolerant of all stress factors and forms a stable yield in different cultivation conditions. All varieties showed a great ecological adaptivity and flexibility with the bi values equal to 1 and varying between 0.92–1.07. The most stable and flexible variety in the case of the Penza region is Baron (bi=0.92; σdr2=0.07) while in the region of Crimea it is Kozir (bi=0.99; σdr2=0.07). The Dikiy variety has high adaptivity parameters in both regions (bi=0.93–0.97; σdr2=0.06). The variance analysis showed that the share of “variety” factor influence is from 38.4% (the Penza region) to 39.2% (Crimea). In the variety-region relationship the influence of a variety is 40.6%. The share of “years” factor influence is 21.7–24.6%, depending on a region.
The Penza Institute of Agriculture has created Medeya cultivar of Guizotia abyssinica , which has been included in the State Register of Breeding Achievements since 2019 and is recommended in all regions for cultivation. The cultivar has ecological plasticity, is characterized by resistance to drought and high temperatures, as well as high responsiveness to additional moisture. It differs in stable seed productivity and high fat content. The aim of the research is a comparative assessment of the fatty acid composition of oil seeds of Guizotia abyssinica grown in contrasting agroclimatic regions. The object of study was the seeds of G. abyssinica grown in different soil and climatic conditions of the Penza, Astrakhan, Tambov and Volgograd regions. The article presents the results of changes in the content of oil and fatty acids, depending on weather, soil and geographical conditions of growth of the culture. The fat content in the seeds of G. abyssinica varied from 33.3-39.2%, depending on agro-climatic conditions. The rich chernozem soils of the Penza and Tambov regions have a fat content of 36.7 to 39.2%, respectively. In the Volgograd region on chestnut soils, the oil content of the seeds of G. abyssinica was 33.3-35.7 %. The main component of the fatty acid composition of the oil of G. abyssinica is polyunsaturated fatty acid - linoleic, the content of which reaches a high value of 79.17%. The content of oleic acid is low and is 5.26%, and linolenic 1.21%. There is no erucic acid in the seeds. The maximum content of linoleic acid (77.5-80.0%) is noted in oilseeds grown on the black soil of Penza and Tambov. The content of linoleic acid was highest in the optimally wetted conditions of 2016 (GTK 1.1) - 79.17%. In arid conditions, with GTK 0.3, the concentration of this acid significantly decreased to 74.36%. The content of palmitic and stearic acids in GTK 1.1 was 7.82 and 5.80 %, in GTK 0.8, their values reached 7.96 and 5.93 %, and in GTK 0.3 - 8.22 and 7, 91%, respectively. Hotter and drier conditions during the vegetation period of hydration contribute to an increase in saturated acids and a decrease in linoleic acid.
Camelina sylvestris (L.) Crantz. is a valuable oilseed known due to the vegetable oil used in human nutrition and industrial production. The current research is aimed to assess the content of fatty acids in Camelina sylvestris oilseeds depending on the hydrothermal cultivation conditions. Seeds of winter camelina variety ‘Penzyak’ grown in the Penza region and steppe Crimea in 2017–2019 served as the object of the research. In 2017, arid conditions were recorded in the Crimea, Selyaninov Hydrothermal Coefficient (HTC) = 0.61. In the Penza region, on the contrary, the level of moisture in 2017 was moderate, HTC = 1.10. Weather conditions in 2019 were characterized as arid in both regions; HTC was 0.63 and 0.60. In 2018, in the Crimea and Penza, HTC was 0.23 and 0.45, respectively. The soils of the experimental plots – chernozems leached (Penza) and southern low-humic (Crimea). Fatty acid methyl esters were isolated and analyzed according to GOST R 51 486–99. The concentration of oleic and linoleic acids increased in seeds grown in the Crimea and amounted to 15.50–18.56 % and 18.08–19.58 %. In the colder region (Penza), the content of these acids decreased to 11.90–14.82 and 16.12–17.10 %, respectively. The highest content of linolenic acid was in oilseeds from the Penza region and amounted to 36.80–38.50 %, which was 4.94–6.40 % higher than the content of linolenic acid in oilseeds from the Crimea. The content of erucic acid in the Camelina sylvestris (L.) Crantz. from both regions was 2.81–2.94 %. The coefficient of variation of this acid was 1.59 %. Linolenic and oleic acids are the most susceptible to changes in cultivation conditions, coefficient of variation – 10.08 and 16.32 %, respectively. The total content of polyunsaturated fatty acids was high and averaged 52.4–54.6 %. The highest concentration was noted in oilseeds from Penza, which exceeded that of from the Crimea by 2.2 %. The content of ω-9 fatty acids ranged from 33.7 % (Penza) to 35.9 % (Crimea) and was characterized by a low coefficient of variation – 4.14 %. The range of variation of ω-3 and ω-6 acid, on average, was 6.32–7.81 %. Their content was 31.5 and 20.9 % in oilseeds from the Crimea and 35.5 and 19.1 % in oilseeds from Penza. The ratio between omega-6 and omega-3 acids is 1.8:1.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.