Selectivity and stability of herbicides and their tank mixtures for the seed yield of sunflower (Helianthus Annuus L.)

Delchev, G.; Barakova, Teodora

doi:10.15547/ast.2016.04.064

Cited by 2 publications

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“…Reddy et al (2012) found negative effects of herbicides with pendimethalin active ingredients on seed yield components. There are many research results on the phytotoxic effects of herbicides on crops (Delchev, 2013;El-Rokiek et al, 2013) Tichý et al (2018 determined the negative effects of herbicides on seed yield components, especially under drought soil and climatic conditions. Renukaswamy et al (2012) and Suryavanshi et al (2015) found the highest yields in the herbicide-free plot.…”

Section: Discussionmentioning

confidence: 99%

Agronomic Comparisons of Herbicides with Different Active Ingredients and Mechanical Hoeing for Weed Control in Oleic and Linoleic Type Sunflower (Helianthus annuus L.) Hybrids

ÖNEMLİ,

TETİK

2023

Tekirdağ Ziraat Fakültesi Dergisi

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Weeds cause serious yield losses in sunflower production. The most common methods for weed control are herbicide application and mechanical hoeing. The objective of this study was to determine the effects of five traditional herbicides containing different active ingredients compared with mechanical hoeing for weed control on seed yield components, seed oil content, and fatty acid composition in sunflower. Field experiments were conducted in the sunflower growing seasons of 2014 and 2015 on farmer fields in Karamusul village of Lüleburgaz, Kırklareli, located in the Northwest of Turkey (40°24’ N, 27021 E and elevation 46 m). Pre-plant herbicide Bonoflan WG with benfluralin, pre-emergence herbicide Stomp®Extra with pendimethalin, and post-emergence herbicides Challenge600 with aclonifen and Targa Super with quizalofop-p-ethyl active were applied on non-Clearfield sunflower hybrids (P64LL05–Linoleic and P64H34–High oleic) while post-emergence herbicide Intervix®Pro with imazamox was applied on Clearfield hybrids (LG5542CL-Linoleic and Colombi–High oleic). In the results, the year effects were statistically significant on plant height, head diameter, number of days from planting to 50% flowering, and percentage of stearic acid of Clearfield cultivars while it was significant on plant height, head diameter, stem diameter, 1000 seed weight, number of days from planting to 50% flowering, seed yield, seed oil content, percentage of oleic and linoleic acids of non-Clearfield cultivars. The effect of genotype was significant for all seed yield and oil components except seed weight and seed yield for both groups’ cultivars. Intervix®Pro caused significant decreases in plant height, stem diameter, and percentage of stearic acid. Stomp®Extra decreased the number of days from planting to 50% flowering. Challenge 600 had a negative effect on the seed oil content of P64H34 in 2015. There was no significant difference between herbicide applications and mechanical hoeing for seed yields except for increasing seed yield of P64H34 by Bonaflan WG in 2015. For all herbicide applications, residue in seeds was not exceeded international acceptable limits. According to the results, herbicides especially post-emergence applications under stress conditions can adversely affect agronomic yield and seed oil components in sunflower.

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Section: Discussionmentioning

confidence: 99%

Agronomic Comparisons of Herbicides with Different Active Ingredients and Mechanical Hoeing for Weed Control in Oleic and Linoleic Type Sunflower (Helianthus annuus L.) Hybrids

ÖNEMLİ,

TETİK

2023

Tekirdağ Ziraat Fakültesi Dergisi

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“…Conventional hybrids do not have initial tolerance to specific herbicides. In this varieties is problematic the weeds control during the growing season (Delchev, 2019). The specific growing clip and the slow initial growth of sunflower allow to emergence of weeds, which due to competition, reduce the final yield (Pfenning et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Aspects of the production process of sunflower (Helianthus annuus L.) depending on the year and different cultivation technology

Vician

2022

Acta fytotechn zootechn

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The aim of the experiment was to evaluate the impact of the year and different hybrid varieties of sunflower on the yield and oil content. The experiment was carried out in the years 2019-2020 in the fields of the Research Centre for Plant Biology and Ecology in Nitra -Dolná Malanta. Statistical analysis of experimental results confirmed the high significant influence of the year on selected quantitative and qualitative parameters of the sunflower. The year 2019 was statistically high significantly more effective for seed yield, were was monitored increase by 0.37 tons per hectare (t ha -1 ) in relation to average yield. In 2020 was confirmed a statistically high significant higher oil content by 0.87%. The evaluation of the genetic potential of selected hybrids confirmed a statistically high significant effect on the yield and oil content of sunflower. Within the monitored years, the average seed yield was 3.47 t ha -1 and the average oil content was 46.22%. In the range of monitored hybrid varieties of sunflower, the highest average seed yield and oil content were recorded for the hybrids of Clearfield Plus. The best values were achieved by the SY Bacardi hybrid with a seed yield of 4.10 t ha -1 (+0.63 t ha -1 ; rel. 18.29%) and with an oil content of 48.50% (+2.28%). The highest seed yield in conventional hybrid varieties of sunflower achieved SY Chronos 3.63 t ha -1 (+0.16 t ha -1 ; rel. 4.69%) and the highest oil content achieved SY Duomo 47.34% (+1.13%). The highest yield in Express Sun hybrid varieties recorded NX 92251 3.56 t ha -1 (+0.10 t ha -1 ; rel. 2.76%). And the highest oil content was monitored by Suffix hybrid 45.91% (-0.31%).

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Selectivity and stability of herbicides and their tank mixtures for the seed yield of sunflower (Helianthus Annuus L.)

Cited by 2 publications

References 0 publications

Agronomic Comparisons of Herbicides with Different Active Ingredients and Mechanical Hoeing for Weed Control in Oleic and Linoleic Type Sunflower (Helianthus annuus L.) Hybrids

Agronomic Comparisons of Herbicides with Different Active Ingredients and Mechanical Hoeing for Weed Control in Oleic and Linoleic Type Sunflower (Helianthus annuus L.) Hybrids

Aspects of the production process of sunflower (Helianthus annuus L.) depending on the year and different cultivation technology

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