scholarly journals The effect of herbicides on the yield structure elements and the productivity of oil flax

2021 ◽  
Vol 37 ◽  
pp. 00028
Author(s):  
Alexander S. Bushnev ◽  
Gennady I. Orekhov ◽  
Sergei P. Podlesny ◽  
Yulia V. Mamyrko

The article provides the research results concerning the effect of antidicotyledonous herbicide Sekator Turbo, OD (a.i. amidosulfuron + iodosulfuron-methyl-sodium + mefenpyr-diethyl) in a tank mixture with various graminicides Quickstep, FEM (a.i. clethodim + haloxyfop-P-methyl), Bagheera, EC (a.i. quizalofop-P-tefuryl), Fuzilad Forte, EC (a.i. fluazifop-P-butyl), Miura, EC (a.i. quizalofop-P-ethyl), and Zellek-super, EC (a.i. haloxyfop-P-methyl) on the yield structure elements and the productivity of lowlinolenic (Nilin) and linolenic (FLIZ) varieties of oil flax on leached chernozem of the Western Ciscaucasia. We have found that the treatment of sowings with herbicides did not have a significant effect on the yield structure elements (thousand-seed weight and bulk weight of seeds). The treatment of sowings of the variety Nilin with the composition of Sekator Turbo + Bagheera or Sekator Turbo + Miura, and the variety FLIZ with Sekator Turbo + Bagheera, Sekator Turbo + Quickstep, Sekator Turbo + Fuzilad Forte, Sekator Turbo + Miura contributes to the receiving of oil flax yield at the level of the control with manual weeding. Tank mixtures of Sekator Turbo + Bagheera, Sekator Turbo + Miura decreased the oil content of seeds of the variety Nilin by 0.5 %. The application of herbicides Sekator Turbo, OD (0.1 l/ha) + Bagheera, EC (1.5 l/ha) provided the highest oil yield of the variety Nilin – 0.34 t/ha, and of the variety FLIZ – 0.54 t/ha. The composition of Sekator Turbo + Zellek-super led to a significant decrease in the productivity and oil content of seeds of the variety FLIZ – by 0.15 t/ha and 0.6 %, respectively.

2021 ◽  
Author(s):  
I.O. Kirsanova ◽  
◽  
Yu.V. Mamyrko ◽  

While studying the impact of the sowing dates on the productivity of sunflower hybrid Typhoon on leached chernozem of the Western Ciscaucasia, we established that under the conditions of 2020, the highest productivity, oil content and oil yield were observed in case of sowing in the last ten days of April – 3.63 t/ha, 54 %, and 1.77 t/ha, and in the first ten days of May – 3.47 t/ha, 50.8 %, and 1.59 t/ha, respectively.


2021 ◽  
Author(s):  
D.N. Shvetsova ◽  

In conditions of 2019, on leached black soil in the central natural-climatic zone of the Krasnodar region, we applied agrochemical Rauactive for foliar fertilizing of sunflower plants twice in the phases of 3–4 leaf pairs formation and at the beginning of head formation in doses 1.0 and 2.0 l/hа and in a dose 2.0 l/hа singly in a phase of 3–4 leaf pairs formation. It positively influenced on indicators of yield structure (head diameter, amount of fully formed seeds in a head, 1000 seed weight) and increased seed yield by 0.14–0.24 t/hа, oil content in seeds – by 0.7–1.2 % and oil yield – by 83–143 kg/hа compares to control.


Author(s):  
Ismail Demir

The aim of this study was to determine the appropriate inter and intra row spacing of sunflower irrigated during the critical growing stages to obtain the highest seed and oil yields. The experiment was carried out with three replications in the randomized blocks with split plots design in 2016 and 2017. Inter row spacings (45 and 70 cm) were placed on the main plots and intra row spacings (20, 25, 30, 35 and 40 cm) were placed on the subplots. Bosfora, oilseed hybrid sunflower variety was used as plant material. It has been determined that inter and intra row spaces had statistically significant effects on sunflower development and yield parameters. In general, as the distance between the inter and intra rows narrowed, plant height was increased, while the stem and table diameters, the number of seeds in the table, thousand seed weight, oil rate and per plant yield were decreased. And also seed and oil yield was increased, in contrast to per plant yield, due to the increase in plant number per unit area. Seed and oil yield with 45x25 cm inter and intra row spacings were 59.6% and 52.9% higher as compared to 70x40 cm spacing, respectively. The highest seed and oil yield was obtained from 45x25 cm inter and intra row space under irrigated conditions


2010 ◽  
Vol 61 (11) ◽  
pp. 945 ◽  
Author(s):  
Murali Tottekkaad Variath ◽  
Jianguo Wu ◽  
Yunxia Li ◽  
Guolin Chen ◽  
Chunhai Shi

The analysis of temporal patterns of genetic effects for thousand-seed weight (TSW) and oil content (OC) in rapeseed was conducted at five different seed development times using unconditional and conditional genetic models for diploid seed quantitative traits. Phenotypic means among generations and seed development times in 2 different years revealed considerable variation for both TSW and OC. The expression of genes from diploid embryo, cytoplasmic and maternal plant genetic systems were all found to be important for the F1 generation, with maternal effects playing a more prominent role for both traits at most times. The conditional analysis indicated that the stage-specific gene expression from the maternal plant was influenced by environment. Higher magnitudes of additive and cytoplasmic effects were observed for both traits. Narrow-sense heritability was high for both traits at all developmental times with maternal heritability being more prominent at most times. Genetic correlations between TSW and OC were mostly negative over developmental times.


2010 ◽  
Vol 14 ◽  
pp. 105-112
Author(s):  
J.M. Townshend ◽  
J.M. Boleyn

Linseed (Linum usitatissimum) is grown in New Zealand for both oil extraction and baking purposes. Two new brown linseed cultivars 'Bilton' and 'Biltstar', both of Dutch origin, were trialled in the Ashburton district in 2006-07 and 2007-08, to evaluate their suitability for seed and oil production. They were compared with the current industry standard cultivar 'Hinu' and the more recently released cultivar 'Juliet'. There was a large range in yields among sites and seasons. When meaned across sites, cultivar yields ranged from 2,596 to 3,012 kg/ha. Bilton and Juliet produced significantly higher yields than Hinu, while Biltstar was intermediate. Thousand seed weight ranged from 5.76 g to 7.65 g with Biltstar producing the heaviest seed. There was a significant cultivar effect for both oil content and α-linolenic acid (ALA) content. Biltstar and Juliet produced the highest oil content (40.7% and 40.3% respectively). ALA levels were highest in Biltstar and Hinu (62.1% and 60.9% of total fatty acids respectively). There was no significant difference in oil yield (kg oil/ha) among cultivars. Four cultivars may have a place in Canterbury for oilseed production depending on end use and grower payment conditions. Keywords: Linum usitatissimum, flaxseed, seed yield, oil content, α-linolenic acid, thousand seed weight


2021 ◽  
Vol 10 (12) ◽  
pp. e353101220514
Author(s):  
Luciene Kazue Tokura ◽  
Deonir Secco ◽  
Luiz Antônio Zanão Júnior ◽  
Jair Antonio Cruz Siqueira ◽  
Alessandra Mayumi Tokura Alovisi ◽  
...  

In the no-tillage system, soils generally exhibit some degree of compaction that limits agricultural production. In this scenario, the use of soil cover plants is one of the alternatives capable of improving the structural quality of the soil and increasing the productivity of crops, such as soybeans. In the context, the objective of this study was to evaluate the effect of plant cover species and management systems on the improvement of the physical characteristics of a Oxisol and its effects on the production and content of soybean oil. The treatments consisted of control, no-tillage system with gypsum, chiseling system, and 12 treatments with soil cover species composed of 6 summer species and 6 winter species, in completely randomized design. Soil samples were collected in the 0-0.1; 0.1-0.2 and 0.2-0.3 m layers for determination of bulk density (BD), total porosity (TP), microporosity, macroporosity, and saturated soil hydraulic conductivity (Ksat) in 2014, 2017, 2018. Grain yield, oil content, thousand-seed weight, mean plant height and number of plants per meter were evaluated in soybean crop. Mean treatment values were compared by Tukey’s test at 5% significance. Five months after the chiseling system, there was no influence on BD. The treatments did not present differences six months after the application of gypsum. BD, TP, micro and macroporosity and Ksat were the variables most influenced by the periods of the year in the three soil layers. Grain yield, oil content, thousand-seed weight, plant height and number of plants per meter were influenced by the seasons.


1981 ◽  
Vol 21 (108) ◽  
pp. 98 ◽  
Author(s):  
SJ Allen ◽  
JK Kochman ◽  
JF Brown

The effect of A. helianthi on yield of sunflower (cv. Hysun 30) was assessed in two field trials at Hermitage and Gatton in southern Queensland during the 1977-78 season. Plots were (i) inoculated with spore suspensions of A. helianthi to encourage an epidemic or, (ii) sprayed regularly with the fungicide captafol to prevent disease development. Conditions were dry at both trial sites except for one week of wet overcast weather when an epidemic of A. helianthi developed. At this time, plants in the Hermitage trial were commencing anthesis, while those in the Gatton trial were approaching maturity (4 weeks post anthesis). After the wet period the epidemic declined in the Hermitage trial, and a low level of disease was present at maturity. At Gatton the disease caused premature leaf senescence in unsprayed plots, while foliage in sprayed plots remained green. Control of the epidemic that began at anthesis increased oil yield by 28%, mainly through increased seed number. There was also a small increase in 1000 seed weight but no significant increase in oil content. Control of the epidemic that began just before maturity increased oil yield by 20%, mainly because of increased 1000 seed weight and a small increase in oil content. It appears that the plant growth stage at the time the disease epidemic occurred determined which yield attributes were most affected.


Author(s):  
Ufuk Karadavut ◽  
Omer Sozen

The aim of this study was to determine the appropriate inter and intra row spacing of sunflower irrigated during the critical growing stages to obtain the highest seed and oil yields. The experiment was carried out with three replications in the randomized blocks with split plots design in 2016 and 2017. Inter row spacings (45 and 70 cm) were placed on the main plots and intra row spacings (20, 25, 30, 35 and 40 cm) were placed on the subplots. Bosfora, oilseed hybrid sunflower variety was used as plant material. It has been determined that inter and intra row spaces had statistically significant effects on sunflower development and yield parameters. In general, as the distance between the inter and intra rows narrowed, plant height was increased, while the stem and table diameters, the number of seeds in the table, thousand seed weight, oil rate and per plant yield were decreased. And also seed and oil yield was increased, in contrast to per plant yield, due to the increase in plant number per unit area. Seed and oil yield with 45x25 cm inter and intra row spacings were 59.6% and 52.9% higher as compared to 70x40 cm spacing, respectively. The highest seed and oil yield was obtained from 45x25 cm inter and intra row space under irrigated conditions.


2021 ◽  
Author(s):  
N.V. Ryabovol ◽  
◽  
A.A. Pikhtyaryova ◽  

The article is dedicated to the study of sulfonylurea-resistant population families of Dzhinnsur for their further use as a new breeding material. We carried out the experiments in field and laboratory conditions at V.S. Pustotovoit All-Russian Research Institute of Oil Crops (Krasnodar) in 2020. In the field experiment we treated the plants with the herbicide Express and we evaluated the plants by a scale of phytotoxicity in all population families of Dzhinn-sur. We the studied population families by the following characteristics: thousand-seed weight, huskness, oil content and linear size. As a result of this work, we selected four population families of Dzhinn-sur, which are constant in their herbicide resistance; they will be used in further breeding work.


2020 ◽  
Vol 222 ◽  
pp. 02018
Author(s):  
Vyacheslav M. Lucomets ◽  
Alexander S. Bushnev ◽  
Gennady I. Orekhov

The work is aimed at the development of application methods of graminicides and anti-dicotyledonous herbicides on oil flax in the area of unstable moistening of the south of Russia. The application of preparations against dicotyledonous weeds Tifi, Sekator Turbo or Magnum, followed by the treatment of sowings with Miura graminicide, contributed to obtaining an increase in yield of 0.14, 0.12, and 0.11 t/ha, respectively, in comparison to the untreated sowings. We observed an increase in crop yield by 0.09-0.12 t/ha with the application of anti-dicotyledonous herbicide Cleo and graminicide Miura, regardless of their application method. The tank mixtures Tifi + Miura and Magnum + Miura had a phytotoxic effect on oil flax, which, in comparison to the control, led to a decrease in yield by 0.04 and 0.09 t/ha and in oil content of seeds by 1.1 and 0.8%, respectively.


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