Bipolaris sorokiniana

The aim of the present study was to evaluate different barley accessions/germplasm lines and released popular varieties for two successive years under artificial inoculated conditions so as to identify resistance sources against spot blotch disease which could serve as donors in breeding for resistance programmes.

11p chauchaungayxua10 18-03-2021 7 1   Download

The differences were observed at pathogenic level also amongst isolates. Most virulent isolate was BS 4 from Faizabad in North - eastern plains zone, which produced susceptible type of infection response even on resistant genotype. It is thus concluded that 13 different types of isolates exists in case of B. sorokiniana in India.

22p trinhthamhodang1218 26-02-2021 7 2   Download

In view of the above facts, the present study was undertaken to evaluate the variable effects of some selected fungicides against some B. sorokiniana.

6p cothumenhmong9 04-01-2021 14 2   Download

A typical example of this is old popular variety ‘Sonalika’ in India. However, Sonalika has been found highly susceptible to spot blotch. The studies were therefore conducted to assess the performance of genotypes of wheat and Triticale having Sr2 gene and its combinations with other Sr genes against spot blotch under artificially inoculated conditions at hot spot locations over years.

9p cothumenhmong7 09-09-2020 15 1   Download

One hundred fifty genotypes of Barley (Hordeum vulgare L.) were screened for spot blotch disease caused by Bipolaris sorokiniana under natural condition. The crop was sown on 4 th week of October 2015 and 2016 respectively.

10p trinhthamhodang7 31-08-2020 7 2   Download

Wheat (Triticum estivum L.) is the major and important winter cereal food crop grown in India during Rabi season. The crop suffer from a number of devastating disease by fungi, bacteria, virus, phytoplasmas, nematodes and many other factors which educe yield and quality. The major fungal disease of wheat, spot blotch caused by Bipolaris sorokiniana is the most devastating disease in India and several other countries. The diseases affect all areal part of the plant.. Many new fungicides and biocides have been under taken to evaluate with poison food method.

6p quenchua6 15-06-2020 9 2   Download

Foliar blight disease caused by Bipolaris sorokiniana (Sacc.) Shoem is most important disease of wheat in North Eastern plain zones (NEPZ) representing warm and humid climate in India. It is also increasing in North Western plains zones (NWPZ), due to climate changes and causes considerable losses in susceptible varieties.

5p gaocaolon5 14-06-2020 15 2   Download

A field experiment was conducted to study the effects of different doses (60, 80, 100, 120, and 140kg/ha) of nitrogen application on 100kg/ha seed rate a semi dwarf, high yielding with good quality traits on ‘DBW 17’, variety of wheat was evaluated to study the effect of 100kg/ha seed rate and different doses of nitrogen application on percent disease intensity, AUDPC, and yield of wheat. The results showed that different doses 120kg/ha nitrogen and 100kg/ha seed rate significantly out yielded the 100 kg/ha and 140kg/ha nitrogen and seed rate in seed yield.

7p gaocaolon5 14-06-2020 13 1   Download

Experiments were conducted to evaluate the effect of some culture media on the vegetative growth of Bipolaris sorokiniana. Five (5) treatment combinations each with three replications were employed. Potato Dextrose Agar (PDA) showed highest radial growth (6.7cm) after 9th day of observation followed by V8 juice agar (6.3cm). Oat Meal Agar showed lowest radial growth (4.6cm) for UBS-1 strain of B. sorokiniana.

5p nguathienthan5 04-06-2020 11 1   Download

All the 10 treatments imposed improved yield and 1000-grain weight to a greater extent as compared to control. The fungicide seed treatment with vitavax power+Tilt (propiconazole) two spray performed best followed by folicur (tebuconazol) and Taspa (propiconazole 13.9%+ difenconazole13.9%). However, in different categories, seed treatment with vitavax power and flusilazole 40EC were the succeeding treatments effective against spot blotch of wheat.

5p trinhthamhodang1213 29-05-2020 9 0   Download

The spot blotch disease caused by Bipolaris sorokiniana (Sacc.) Shoem is one of the most important wheat leaf diseases all over world, it appears in almost all wheat growing areas and causes severe yield loss every year.

12p caygaocaolon5 27-05-2020 17 1   Download

The most economic way to manage the foliar blight of wheat is through resistance breeding. The present investigation was carried out to gather information about the hundred entries possessing resistant to spot blotch at field under epiphytotic condition of 2016-17 crop season.

10p caygaocaolon5 27-05-2020 13 0   Download

Variability among isolates of Bipolaris sorokiniana was determined based on conidial morphology. The pathogen was isolated from wheat host from different agro-climatic zones of West Bengal and grown on four different media for investigation of conidial morphology of this pathogen. The size of colony (length and breadth) was increased with increasing incubation period.

24p cothumenhmong5 17-05-2020 9 1   Download

Fifty seed of sorghum, wheat and pearlmillet from infected seed lot having characteristics symptom of seed borne fungi. Seed of such symptoms got infected of Curvularia lunata, Bipolaris sorghicola and B. sorokiniana infected seed of sorghum wheat and pearlmillet. Histopathology of apparently in infected seeds confined to mycelium fragments of Curvularia lunata in seed coat and endosperm, embryonic region of sorghum, wheat and pearlmillet seed. Sorghum and pearlmillet seed indicates the presence of brown coloured thicks mycelial fragment of Bipolaris sorghicola in pericarp and embryo region.

5p trinhthamhodang5 16-05-2020 10 1   Download

Spot blotch caused by Bipolaris sorokiniana (Sacc. in Sorok.) Shoem. is an important disease of Wheat and Barley. The biological control has been proved useful and economical in the control of spot blotch because of the harmful effect of fungicides to human and environment. The Trichoderma viride, Trichoderma harzianum and Trichoderma virens were used in dual culture method to see their effect on mycelial growth of Bipolaris sorokiniana.

6p trinhthamhodang1212 06-04-2020 13 1   Download

Inhibitory potential of silver nanoparticle (AgNP) at concentrations of 10, 20, 50 and 100 ppm was assessed on two foliar phytopathogens viz. Bipolaris sorokiniana and Alternaria brassicicola. Antifungal activity of AgNP was found to be significant in reducing germinating spores as well as mycelial growth of both pathogens in an experiment under controlled condition. AgNP at a concentration of 20 ppm was found effective to inhibit spore germination in B. sorokiniana as well as A. brassicicola. AgNP at 100 ppm resulted in restricting maximum mycelial growth for both pathogens.

8p caygaocaolon4 04-04-2020 10 1   Download

Survey was conducted at dough stage to assess the spot blotch disease of wheat in different locations of Jammu sub-tropics during 2015 cropping seasons. The disease was reported in all the wheat growing areas of Jammu subtropics with the maximum AIDX observed in Kathua district with the range of 29.55-48.15 per cent, followed by Samba ranging from 29.28-45.82 per cent.

9p cothumenhmong4 25-03-2020 18 0   Download

Spot blotch in wheat (Triticum aestivum L.) is mainly caused by Bipolaris sorokiniana (Sacc.) Shoem in India and south Asian countries and inflected losses in yield up to 50 per cent. The isolates of B. Sorokiniana (BS1 to BS10) isolated from blighted leaf samples collected from different part of Jammu sub-tropics. Cultural and morphological variability of B. sorokiniana isolates exhibited that the colonies were effuse grey-white to effuse black and velvety-white mycelial growth with regular to irregular margins. The colour of colonies varied from grey to dark brown and white to light grey.

12p cothumenhmong4 25-03-2020 15 0   Download

Bio-controlling of potato foliar pathogens could be an alternative and eco-friendly management. Therefore, in this trial, the antagonistic potential of some bio-controlling agents (BCAs) of Trichoderma spp. (Trichoderma asperillum, Trichoderma longibrachiatum and Trichoderma harzianum) and Bacillus spp.

21p kequaidan2 13-12-2019 16 1   Download

Survey and surveillance form the basis for any successful plant protection that depends on early detection of disease followed by timely adoption of management measures. Spot blotch caused by Bipolaris sorokiniana is an important disease of wheat gaining much importance in Karnataka because of the occurrence of severe outbreak every year. Intensive roving survey was conducted in wheat growing areas of Dharwad, Gadag, Belagavi, Bagalkote and Vijayapura districts of Karnataka, during rabi, 2017-18.

13p cothumenhmong1 08-12-2019 10 1   Download