Danos na soja causada por míldio

Silva, Olavo Correia da; Santos, Hellen Aparecida Arantes dos; Pria, Maristella Dalla; Mio, Louise Larissa May De

doi:10.1590/0103-8478cr20150093

Cited by 4 publications

(4 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…P. manshurica grows optimally in high humidity and low temperature at 20-22 o C (Dong et al, 2018). However, fungi can adapt and survive in dry environmental conditions, so in a study (Silva et al, 2016), P. manshurica spores were found to The relatively good light intensity for fungal reproduction is around 380-720 lux. High light intensity can inhibit the growth of fungal populations, as it can hinder the formation of reproductive structures and the production of spores or oospores.…”

Section: Articlementioning

confidence: 95%

“…Oospores have a thick wall, allowing them to survive in dry conditions during soybean maturation and storage in warehouses. The outer surface of the oospores is irregular due to the attachment of hyphae, remnants of antheridia or oogonia (Silva et al, 2016;Müller et al, 2019). Viability test of oospora P. manshurica…”

Section: Articlementioning

confidence: 99%

“…Oospora P. manshurica is a resting spore that serves as a survival structure in dry or unfavorable environments. This spore will become active again if the environmental conditions are supportive (Silva et al, 2016). The incubation conditions on a petri dish with moist filter paper provide a humid environment that triggers the reactivation of the cells that cause the oospore to germinate.…”

Section: Jurnal Ilmiah Pertanianmentioning

confidence: 99%

“…The importation of soybeans from the United States carries the risk of bringing Plant Pests Organisms (PPOs), including Peronospora manshurica which causes downy mildew disease (Lim, 2022). This disease is widely spread in soybean production centers worldwide with a damage rate of 8-14% (Silva et al, 2016). Peronospora manshurica is one of the fungi that can easily be carried through the air over long distances with a very high sporulation rate (Hayati et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Detection of Peronospora manshurica in imported soybean and analysis of oospore viability in storage warehouses in Ternate City, Indonesia

Arianti¹,

Tjokrodiningrat

Sudjud

2023

J. Ilm. Pertan.

View full text Add to dashboard Cite

The soybean needs of the people in Ternate are fulfilled by imported soybeans that enter through Surabaya. The process of transporting imported soybean seeds from Surabaya to the port of Ternate and storage in warehouses may lead to contamination with Peronospora manshurica fungus, which poses a risk of spreading to soybean crops in Ternate. This study aims to detect the presence of P. manshurica fungus, viability, and growth of P. manshurica oospores in the imported soybean storage warehouses in Ternate. The study was conducted using a combination of qualitative and quantitative methods. The qualitative method was carried out through an exploratory approach, while the quantitative method used a randomized block design (RBD) consisting of four treatments, i.e., G.Tbsi, G.Jbla, G.Tfra, and G.Tfrb, with five replications. The observation variables included disease occurance, presence, and characteristics of oospores, as well as oospore growth and viability percentage. The results showed that the average disease occurance in the soybean storage warehouses was highest in the sample of soybeans from the Tfrb warehouse at 1.88%, followed by the Jbla, Tfra, and Tbsi warehouses at 1.44%, 1.41%, and 1.24%, respectively. The study also found P. manshurica fungus in all four soybean storage warehouses in Ternate, with a viability percentage of G.Tbsi, G.Jbla, G.Tfra, and G.Tfrb were 25.8%, 28.8%, 27.4%, 26.5% respectively. These findings indicate the potential for disease spread to soybean crops in Ternate, thus necessitating appropriate preventive measures to address this problem.

show abstract

Section: Articlementioning

confidence: 95%

Section: Articlementioning

confidence: 99%

Section: Jurnal Ilmiah Pertanianmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Detection of Peronospora manshurica in imported soybean and analysis of oospore viability in storage warehouses in Ternate City, Indonesia

Arianti¹,

Tjokrodiningrat

Sudjud

2023

J. Ilm. Pertan.

View full text Add to dashboard Cite

show abstract

Evaluation of Foliar Diseases for Soybean Entries in the Pan-African Trials in Malawi and Zambia

Nachilima¹,

Chigeza²,

Chibanda³

et al. 2020

Plant Disease

View full text Add to dashboard Cite

Soybean production has expanded worldwide including countries in sub-Saharan Africa. Several national and international agencies and research groups have partnered to improve overall performance of soybean breeding stocks and have introduced new germplasm from Brazil and the United States with the goal of developing new high-yielding cultivars. Part of this effort has been to test improved soybean lines/cultivars accumulated from private and public sources in multilocational trials in sub-Saharan Africa. These trials are known as the Pan-African Soybean Variety Trials, and the entries come from both private and public breeding programs. The objective of this research was to evaluate entries in the trials that include commercial cultivars or advanced experimental lines for the incidence and severity of foliar diseases. All trials were planted in December 2018 with six located in Zambia and one in Malawi. Plants were evaluated during the reproductive growth stages using a visual pretransformed severity rating scale. Foliar disease ratings were recorded for three bacterial diseases, six fungal diseases, one oomycete, and viruses. The overall occurrence of most of the diseases was high except for soybean rust and target spot, which were only found at two and one location, respectively. However, disease severity was generally low, although there were differences in disease severity ratings among the entries at some of the locations for brown spot, downy mildew, frogeye leaf spot, red leaf blotch, and soybean rust.

show abstract

Suppression of the soybean cyst nematode, Heterodera glycines, by short-term field cultivation and soil incorporation of mung bean

et al. 2020

View full text Add to dashboard Cite

Summary Our previous study using pots reported that short-term growth of mung bean (Vigna radiata) may be useful to decrease the density of the soybean cyst nematode (SCN), Heterodera glycines, in soil. The objective of this study was to determine whether short-term growth of mung bean and its incorporation by ploughing decreased SCN density in infested fields. Firstly, we did pot experiments to evaluate the optimum temperature and moisture for hatching in soil. SCN hatching was stimulated at 25 and 30°C and not at 20°C; however, it was stimulated at alternating temperature conditions between 20 and 25°C. Soil moisture levels with pF 2.76 or less were required to stimulate SCN hatch in soil. Field experiments were done in Saitama, Kanagawa and Nara Prefectures, Japan. SCN density was reduced by nearly half even in control plots, in which mung bean was not cultivated and ploughed, in Saitama and Nara Prefectures. However, SCN density was reduced by nearly 80% or more in the three Prefectures, except for one plot in Kanagawa, and the soil temperature and moisture conditions were kept at around 20-30°C and at <pF 2.8. Increase in yield of green soybean by SCN control was estimated at 350 kg (1000 m)−2. Overall, the present study revealed that short-term field cultivation of mung bean and ploughing was a profitable method to decrease SCN density in infested fields and thereby to increase yield of green soybean.

show abstract

Danos na soja causada por míldio

Cited by 4 publications

References 8 publications

Detection of Peronospora manshurica in imported soybean and analysis of oospore viability in storage warehouses in Ternate City, Indonesia

Detection of Peronospora manshurica in imported soybean and analysis of oospore viability in storage warehouses in Ternate City, Indonesia

Evaluation of Foliar Diseases for Soybean Entries in the Pan-African Trials in Malawi and Zambia

Suppression of the soybean cyst nematode, Heterodera glycines, by short-term field cultivation and soil incorporation of mung bean

Contact Info

Product

Resources

About