Fungicidal effect of some promising agents in controlling maize late wilt disease and their potentials in developing yield productivity

Shalaby, M. E.; Mehesen, Ahlam A.; Elbagory, Mohssen

doi:10.21608/jenvbs.2017.1849.1013

Cited by 5 publications

(7 citation statements)

References 24 publications

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“…Where, ranked as the second important one after sugar cane for sugar production in Egypt (Eweis et al, 2006 andAmer et al 2019) Cercospora leaf spot (CLS), is the foliar disease of sugar beet world-wide (Holtschulte 2000), this disease reduce 42% of sugar yield (Shane and Teng, 1983). The causal pathogen spreads from region to another in the same country, causing losses in root and extractable sucrose yields, and increases impurity concentrations resulting in higher processing losses (Lamey et al, 1987;El-Moghazy et al, 2017;Ghazy, et al, 2017 andFarahat, 2018).…”

Section: Introductionmentioning

confidence: 99%

Effect of foliar fertilization on the yield, sugar contents and improving resistance of cercospora leaf spot on sugar beet

Ghazy¹,

Shahin²,

Mustafa³

2020

EBSS

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I N THIS study six mineral elements including copper sulfate (CuSO₄), potassium sulfate (K 2 SO₄), micron sulfur (S),boric acid (H 3 BO 3 ), copper sulfate+ micron sulfur (Cu SO₄ + S) and potassium sulfate + boric acid (K 2 SO₄ + H 3 BO 3 ) as well as fungicide Montoro 30% were used as foliar spraying. These elements were evaluated against Cercospora leaf spot disease on sugar beet under field conditions during two seasons.All foliar applications were significantly reduced the disease severity % compared to untreated treatment during the two seasons. Potassium and combined application of Potassium and Boron treatments recorded the high value of sugar beet leaf dry weight over the control.Sulfur application led to an increase the fresh weight of sugar beet root, while Boron application increased the total soluble solid (TSS), sucrose % and purity %. Results obtained showed significant increasing (%) in catalase (CAT), peroxidase (POX) and polyphenolosxidase (PPO)activities in the case of mineral application and Montoro 30% fungicide compare with untreated treatment. However, the present study showed that foliar application of mineral elements tested in increased yield components of sugar beet, and thus is recommended to increase root yield and quality as well as can reduce disease severity.

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Section: Introductionmentioning

confidence: 99%

Effect of foliar fertilization on the yield, sugar contents and improving resistance of cercospora leaf spot on sugar beet

Ghazy¹,

Shahin²,

Mustafa³

2020

EBSS

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“…Therefore, this approach occupies an increasingly central place in worldwide scientific research to this end. To address this challenge, many studies were directed towards LWD biological control [20,31,[102][103][104]. These methods include operating and strengthening beneficial microorganism communities in the soil (for example, by compost addition [102]) or direct intervention using antagonistic bacteria and fungi or their secreted metabolites.…”

Section: Strengthening Beneficial Microorganism Communities In the Soil And Their Secreted Metabolitesmentioning

confidence: 99%

“…To address this challenge, many studies were directed towards LWD biological control [20,31,[102][103][104]. These methods include operating and strengthening beneficial microorganism communities in the soil (for example, by compost addition [102]) or direct intervention using antagonistic bacteria and fungi or their secreted metabolites. An example is B. subtilis MF497446 and Pseudomonas koreensis (two plant-growth-promoting rhizobacteria [31]).…”

Section: Strengthening Beneficial Microorganism Communities In the Soil And Their Secreted Metabolitesmentioning

confidence: 99%

“…Another example is the use of a filtrate of mixed strains of the cyanobacteria Anabaena oryzae, Nostocmuscorum, and N. calcicolawere [102]. An alternative approach was to use marine algae and cyanobacteria A. oryzae extracts exhibiting antifungal activities to target the LWD pathogen [103].…”

Section: Strengthening Beneficial Microorganism Communities In the Soil And Their Secreted Metabolitesmentioning

confidence: 99%

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Control Strategies to Cope with Late Wilt of Maize

Degani

2021

Pathogens

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Control of maize late wilt disease (LWD) has been at the forefront of research efforts since the discovery of the disease in the 1960s. The disease has become a major economic restraint in highly affected areas such as Egypt and Israel, and is of constant concern in other counties. LWD causes dehydration and collapsing at a late stage of maize cultivation, starting from the male flowering phase. The disease causal agent, Magnaporthiopsis maydis, is a seed- and soil-borne phytoparasitic fungus, penetrating the roots at sprouting, colonizing the vascular system without external symptoms, and spreading upwards in the xylem, eventually blocking the water supply to the plant’s upperparts. Nowadays, the disease’s control relies mostly on identifying and developing resistant maize cultivars. Still, host resistance can be limited because M. maydis undergoes pathogenic variations, and virulent strains can eventually overcome the host immunity. This alarming status is driving researchers to continue to seek other control methods. The current review will summarize the various strategies tested over the years to minimize the disease damage. These options include agricultural (crop rotation, cover crop, no-till, flooding the land before sowing, and balanced soil fertility), physical (solar heating), allelochemical, biological, and chemical interventions. Some of these methods have shown promising success, while others have contributed to our understanding of the disease development and the environmental and host-related factors that have shaped its outcome. The most updated global knowledge about LWD control will be presented, and knowledge gaps and future aims will be discussed.

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“…Many studies have aimed at LWD biological control [ 31 , 32 , 33 , 45 , 46 ] to address this challenge, including direct intervention using antagonistic bacteria and fungi or their secreted metabolites [ 34 , 47 ]. An alternative approach is to operate and strengthen beneficial microorganism communities in the soil (for example, by compost addition [ 48 ]).…”

Section: Introductionmentioning

confidence: 99%

Crop Rotation and Minimal Tillage Selectively Affect Maize Growth Promotion under Late Wilt Disease Stress

Degani

Gordani

Becher

et al. 2022

JoF

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In recent years, worldwide scientific efforts towards controlling maize late wilt disease (LWD) have focused on eco-friendly approaches that minimize the environmental impact and health risks. This disease is considered to be the most severe threat to maize fields in Israel and Egypt, and a major growth restraint in India, Spain, and Portugal. Today’s most commonly used method for LWD control involving resistant maize genotypes is under constant risk from aggressive pathogen lines. Thus, this study’s objectives were to evaluate the effect of crop rotation and avoiding tillage on restraining the disease. Such an agrotechnical approach will support the continuity of soil mycorrhiza networks, which antagonize the disease’s causal agent, Magnaporthiopsis maydis. The method gained positive results in previous studies, but many knowledge gaps still need to be addressed. To this end, a dual-season study was conducted using the LWD hyper-susceptible maize hybrid, Megaton cv. The trials were performed in a greenhouse and in the field over full dual-growth seasons (wheat or clover as the winter crop followed by maize as the summer crop). In the greenhouse under LWD stress, the results clearly demonstrate the beneficial effect of maize crop rotation with clover and wheat on plant weight (1.4-fold), height (1.1–1.2-fold) and cob yield (1.8–2.4-fold), especially in the no-till soil. The clover-maize growth sequence excels in reducing disease impact (1.7-fold) and pathogen spread in the host tissues (3-fold). Even though the wheat-maize crop cycle was less effective, it still had better results than the commercial mycorrhizal preparation treatment and the uncultivated non-infected soil. The results were slightly different in the field. The clover-maize rotation also achieved the best growth promotion and disease restraint results (2.6-fold increase in healthy plants), but the maize rotation with wheat showed only minor efficiency. Interestingly, pre-cultivating the soil with clover had better results in no-till soil in both experiments. In contrast, the same procedure with wheat had a better impact when tillage was applied. It may be concluded that crop rotation and soil cultivation can be essential in reducing LWD, but other factors may affect this approach’s benefits in commercial field growth.

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Fungicidal effect of some promising agents in controlling maize late wilt disease and their potentials in developing yield productivity

Cited by 5 publications

References 24 publications

Effect of foliar fertilization on the yield, sugar contents and improving resistance of cercospora leaf spot on sugar beet

Effect of foliar fertilization on the yield, sugar contents and improving resistance of cercospora leaf spot on sugar beet

Control Strategies to Cope with Late Wilt of Maize

Crop Rotation and Minimal Tillage Selectively Affect Maize Growth Promotion under Late Wilt Disease Stress

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