Is the plant biostimulant application ameliorative for herbicide-damaged sunflower hybrids?

Neshev, N.; Balabanova, Dobrinka; Yanev, Mariyan; Mitkov, Anyo

doi:10.1016/j.indcrop.2022.114926

Cited by 12 publications

(9 citation statements)

References 27 publications

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“…A decrease of total protein content has been repeatedly reported as a result of AHAS-inhibiting herbicides application, even in the resistant species (Scarponi et al, 2001;Zulet et al, 2013), which corresponds also to our results. Previously, we have found that the plant biostimulants and in particular protein hydrolisates (containing short peptides and free amino acids) has an ameliorative effect on plants injured by imazamox (Balabanova et al, 2016;Balabanova, 2021;Neshev et al, 2022). This improving effect from adding the amino acids indicates that the additionally supplied amino acids are involved in the disrupted protein metabolism and thus relieve the overall protein turnover in plants.…”

Section: Discussionmentioning

confidence: 98%

Effect of additionally BCAA supply on imazamox-treated sunflower and antioxidative defense system

Balabanova¹

2022

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Sunflower is an economically important oilseed crop worldwide and weeds have a negative effect on its yields. The herbicide imazamox, combined with imazamox-resistant (IMI-R) sunflower hybrids, is a technology known as the Clearfield production system and successfully controls weeds. The mechanism of action of the herbicide imazamox is related to blocking the AHAS enzyme, which catalyzes the first step in the biosynthetic pathway of the branched-chain amino acids (BCAA). In the present study, we investigated the effect of the supplementary addition of BCAA to imazamox-treated IMI-R sunflower plants and antioxidative metabolism. Our results showed that the additional application of BCAA has a beneficial effect on both the total protein content and the activity of the antioxidant defense system of plants. This amelioration is probably a secondary effect of the enhanced protein metabolism and the supposed direct involvement of the three amino acids in the overall protein turnover.

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Section: Discussionmentioning

confidence: 98%

Effect of additionally BCAA supply on imazamox-treated sunflower and antioxidative defense system

Balabanova¹

2022

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“…Some affect the formation of roots, increase the germination rate of seeds, others have a greater impact on the development, enlargement of the stem, regulate flowering, are able to regulate the formation of fertilized nodes [5,9]. One of the advanced technologies of sunflower cultivation is the use of mineral fertilizers, which is one of the main factors in increasing yields [10]. It is important to feed the sunflower in a timely manner according to its demand, so if great attention is paid to determining the amount and duration of mineral fertilizers applied to it, a quality and high yield can be obtained [2].…”

Section: Introductionmentioning

confidence: 99%

“…Scientists of the Ukrainian Agroresurc Institute (Ponomarenko SP, 2003] emphasize that growth regulators for agricultural producers are no less valuable than mineral fertilizers and plant protection products. A new direction in improving sunflower production technology is to develop a system of effective use of modern plant growth regulators that control individual stages of plant growth and development to activate their immunity and consequently separate stages of production to increase the yield and quality of sunflower seeds [6,[9][10]. Therefore, the development of technology for the use of sunflower, a biostimulator that regulates growth and enhances immunity is of paramount importance [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

The effect of different doses of different biostimulants on the yield of oily sunflower

Yuldasheva

Karabayeva

2023

IOP Conf. Ser.: Earth Environ. Sci.

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Biologically active substances (BASs), including plant phytohormones-regulators of plant growth and development, are becoming increasingly important in agriculture activities. Their use allows to better realize the genetic potential of crops, increase the resistance of plants to stress factors of biotic and abiotic nature, and as a result increase yields and improve quality. In this research, it was aimed at researching effect of different doses of different biostimulants on the yield of oily sunflower. In the research experiment, “Methods of field experiments” developed by B. Dospekhov was used. According to the results, it was found that microbio-fertilizers, biostimulants, immunostimulants had positive effect on the growth, development and seed formation of the local Dilbar variety of sunflower, the weight and yield of 1000 seeds. When biodux biostimulator was applied to the 1.0 ml/t seed variant, the height of sunflower stem was 28.5 cm higher than the control and 7.1 cm higher than the “UzGUMI” standard. Furthermore, when the MERS microbiota fertilizer was used in the 2.0 ml/ton variant, the stem height was 25.5 cm higher, and it was 4.1 cm higher than the UzGUMI standard. The 1000 seed weight was found to be heavier than the other biostimulants used in the experiment, especially in the variant using MERS microbiota.

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“…The synthesis and availability of these amino acids are essential for reducing the toxic effects of herbicides. Thus, GSH, together with the action of the enzyme glutathione S-transferase (GST), produces the herbicide conjugation with GSH, forming a complex that later facilitates the degradation of the herbicide into non-toxic compounds for plants [ 16 ]. Furthermore, GSH acts directly in the detoxification of toxic radicals produced by herbicides in plants, such as H 2 O 2 and methylglyoxal, through the induction of GSH-peroxidase enzymes and the glyoxalase system [ 17 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

“…The use of biostimulants as a means for increasing the tolerance of plants when exposed to different stress factors, including herbicides, could be very positive [ 16 , 23 ]. Thus, the growth of plants that are under stress conditions such as drought, nutrient shortage, and other factors, including herbicides, could be improved by biostimulant application [ 24 , 25 , 26 , 27 ].…”

Section: Introductionmentioning

confidence: 99%

Application of an Enzymatic Hydrolysed L-α-Amino Acid Based Biostimulant to Improve Sunflower Tolerance to Imazamox

Navarro‐León

Borda

Marín

et al. 2022

Plants

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Herbicides, commonly used in agriculture to control weeds, often cause negative effects on crops. Safeners are applied to reduce the damage to crops without affecting the effectiveness of herbicides against weeds. Plant biostimulants have the potential to increase tolerance to a series of abiotic stresses, but very limited information exists about their effects on herbicide-stressed plants. This study aims to verify whether the application of a potential safener such as Terra-Sorb®, an L-α-amino acid-based biostimulant, reduces the phytotoxicity of an Imazamox-based herbicide and to elucidate which tolerance mechanisms are induced. Sunflower plants were treated with Pulsar® 40 (4% Imazamox) both alone and in combination with Terra-Sorb®. Plants treated with the herbicide in combination with Terra-Sorb® showed higher growth, increased acetolactate synthase (ALS) activity, and amino acid concentration with respect to the plants treated with Imazamox alone. Moreover, the biostimulant protected photosynthetic activity and reduced oxidative stress. This protective effect could be due to the glutathione S-transferase (GST) induction and antioxidant systems dependent on glutathione (GSH). However, no effect of the biostimulant application was observed regarding phenolic compound phenylalanine ammonium-lyase (PAL) activity. Therefore, this study opens the perspective of using Terra-Sorb® in protecting sunflower plants against an imazamox-based herbicide effect.

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Is the plant biostimulant application ameliorative for herbicide-damaged sunflower hybrids?

Cited by 12 publications

References 27 publications

Effect of additionally BCAA supply on imazamox-treated sunflower and antioxidative defense system

Effect of additionally BCAA supply on imazamox-treated sunflower and antioxidative defense system

The effect of different doses of different biostimulants on the yield of oily sunflower

Application of an Enzymatic Hydrolysed L-α-Amino Acid Based Biostimulant to Improve Sunflower Tolerance to Imazamox

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