Evaluation of Fungicides and Bio-agent against Neck Blast Disease of Rice

The severity of the rice blast disease (Pyricularia grisea) of both leaf and neck varies with different environment and it becomes destructive under favorable condition. The leaf and neck blast resistance and susceptible interaction of 30 different tropical rice lines were evaluated under low-, mid- and up-land conditions of Chitwan district and classified on the basis of disease severity with respect to susceptible check, Masuli. Of them, 5, 10, 12 and 3 rice lines were resistant to leaf blast, moderately resistant, moderately susceptible susceptible, respectively. Similarly, for the neck blast nine lines were resistant, thirteen moderately resistant, seven moderately susceptible and one was susceptible. The progenies from Masuli/MT4 had the highest leaf and neck blast susceptible reaction, while the most of progenies from IPB (Irradiated Pusa Basmati), KalinghaIII_IR64, Radha 32_ KIII and Masuli_IR64 were resistant, and the most promising sources against leaf and neck blast resistance. Therefore, the progenies from these parents can be used in breeding the resistant variety. Key words: Pyricularia grisea, resistance, rice lines J. Inst. Agric. Anim. Sci. 27:37-44 (2006)

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A Simple and Accurate Resistance Identification Method of Rice to Neck Blast Disease In Vitro

Journal of Phytopathology ◽

10.1111/jph.12513 ◽

2016 ◽

Vol 164 (11-12) ◽

pp. 936-945 ◽

Cited By ~ 1

Author(s):

Bo Lan ◽

Ying-Qing Yang ◽

Hong-Fan Chen ◽

Jun-Xi Jiang ◽

Xiang-Min Li

Keyword(s):

Blast Disease ◽

Identification Method ◽

Neck Blast

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Field Evaluation of RD6 Introgression Lines for Yield Performance, Blast, Bacterial Blight Resistance, and Cooking and Eating Qualities

Agronomy ◽

10.3390/agronomy9120825 ◽

2019 ◽

Vol 9 (12) ◽

pp. 825 ◽

Cited By ~ 2

Author(s):

Myo San Aung Nan ◽

Jirayoo Janto ◽

Arthit Sribunrueang ◽

Tidarat Monkham ◽

Jirawat Sanitchon ◽

...

Keyword(s):

Bacterial Blight ◽

Agronomic Traits ◽

Blast Resistance ◽

Blast Disease ◽

Yield Potential ◽

High Yield ◽

Resistance Qtls ◽

Leaf Blast ◽

The North ◽

Neck Blast

Glutinous rice cultivar “RD6” is well known for its fragrance and high cooking and eating qualities, and is the most popular glutinous cultivar in the north and northeastern regions of Thailand. However, it’s susceptible to blast and bacterial blight (BB) diseases. Previously, four blast resistance QTLs on chromosomes 1, 2, 11, and 12, and a single BB resistance gene xa5 pyramided to the background of the RD6 cultivar were tested for a broad spectrum of disease resistance under greenhouse conditions. In the present study, a field experiment was conducted during the rainy seasons of 2015, 2016, 2017, and 2018, across three locations, for performance evaluations of promising lines in terms of disease reaction, agronomical characteristics, grain yield, and quality attributes. The results revealed that the ILs (BC2F5 2-7-5-36, BC2F5 2-7-5-43, BC2F5 2-8-2-25, and BC2F5 6-1/15-2-11) exhibited higher level resistance to leaf blast and neck blast disease. The BC2F5 2-8-2-52 showed resistance to both blast and BB diseases and, like all ILs, exhibited superior yield compared to the original RD6. Furthermore, the agronomic traits and grain qualities were similarly displaced, and were therefore recommended as near-isogenic lines to the RD6. This clearly demonstrated that farm phenotypic selection plays an important role in achieving not only NIL resistance to diseases, but also high yield potential, as well as representing an effective way in which to enhance BB, leaf blast, and neck blast resistance in rice planting in the north and northeastern regions of Thailand.

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Molecular profiling of blast resistance genes and evaluation of leaf and neck blast disease reaction in rice

Journal of Genetics ◽

10.1007/s12041-020-01212-y ◽

2020 ◽

Vol 99 (1) ◽

Author(s):

Haniyambadi B. Manojkumar ◽

Chikkaballi A. Deepak ◽

Kodihally M. Harinikumar ◽

M. P. Rajanna ◽

Belthur Chethana

Keyword(s):

Resistance Genes ◽

Blast Resistance ◽

Molecular Profiling ◽

Blast Disease ◽

Disease Reaction ◽

Neck Blast ◽

Blast Resistance Genes

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Evaluation of neck blast resistance and agronomical performances on double haploid rice population in greenhouse and endemic field

Nusantara Bioscience ◽

10.13057/nusbiosci/n090406 ◽

2017 ◽

Vol 9 (4) ◽

pp. 371-377

Author(s):

GUT WINDARSIH ◽

DWINITA WIKAN UTAMI

Keyword(s):

Double Haploid ◽

Blast Resistance ◽

Blast Disease ◽

Rice Varieties ◽

Resistance Response ◽

Neck Blast ◽

Susceptible Control ◽

Genotype Evaluation ◽

Dh Lines ◽

Differential Varieties

Windarsih G, Utami DW. 2017. Evaluation of neck blast resistance and agronomical performances on double haploid rice population in greenhouse and endemic field. Nusantara Bioscience 9: 371-377. Blast disease caused by fungal Pyricularia grisea Sacc. is one of the most destructive diseases of rice in the world. The development of blast-resistant rice varieties will be essential to control this disease. This research aimed (i) to compare the resistance response to neck-blast among DH lines from double cross IR54/Parekaligolara//Bio110/Markuti and the differential varieties against three selected Indonesian blast races in greenhouse, (ii) to identify the gene(s) that caused the resistance to neck-blast based on the association between the resistance response and the genotype evaluation using molecular markers linked to Pi1, Pi33, Pib, Pir4 and Pir7 genes, and (iii) to evaluate the resistance response to leaf and neck blast on DH lines in endemic field (Sukabumi) and the agronomical performance of selected DH lines in optimum field in Ciasem of Subang, West Java, Indonesia during December 2013 to March 2014. Eleven double haploid lines from double-crossing IR54/Parekaligolara//Bio110/Markuti, the differential varieties as resistant control and the US2 variety for susceptible control were observed for neck-blast resistance response to three blast races in greenhouse and endemic field (Sukabumi), while the agronomical performances were observed in field of Ciasem-Subang. The results based on the genotyping evaluation, leaf and neck blast resistance, either in greenhouse and endemic location, and the agronomical performance in field showed that 5 selected double haploid lines had leaf and neck blast resistance and good performance on field trial. Thus they are promising for use either for further testing forwarding into releasing variety or used as donor for further blast resistant breeding activities.

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Use of Chemical Fungicides for the Management of Rice Blast (Pyricularia Grisea) Disease at Jyotinagar, Chitwan, Nepal

International Journal of Applied Sciences and Biotechnology ◽

10.3126/ijasbt.v3i3.13287 ◽

2015 ◽

Vol 3 (3) ◽

pp. 474-478 ◽

Cited By ~ 5

Author(s):

Prem Bahadur Magar ◽

Basistha Acharya ◽

Bishnu Pandey

Keyword(s):

Rice Blast ◽

Block Design ◽

Rice Cultivar ◽

Weekly Interval ◽

Blast Disease ◽

Pyricularia Grisea ◽

Leaf Blast ◽

Booting Stage ◽

Neck Blast ◽

Development Center

Rice blast caused by Pyricularia grisea Sacc. is the important disease of rice and different fungicides against this disease were evaluated in summer 2014 at Karma Research and Development Center, Jyotinagar, Chitwan, Nepal. A susceptible rice cultivar ‘Mansuli’ was planted in randomized complete block design and fungicides viz. Tricyclazole 22% + Hexaconazole 3% SC (0.2%), Streptomycin 5% + Thiophanate Methyl 50% WP (0.15%), Prochloraz 25% EC (0.3%), Kasugamycin 2% WP (0.2%), Hexaconazole 4% + Zineb 68 % WP (0.2%) and Udaan (Hexaconazole 3% SC) (0.2%) were sprayed thrice at weekly interval starting from the booting stage. All these fungicides were found to be effective in controlling leaf and neck blast disease as compare to control one. Among them, Tricyclazole 22% + Hexaconazole 3% SC was found to be the most effective with least leaf blast severity (6.23%), neck blast incidence (8.97%), and highest percentage disease control (87.08% and 79.62% in leaf blast and neck blast respectively) and grain yield (4.23 t/ha) followed by Prochloraz 25% EC (0.3%) and Udaan (Hexaconazole 3% SC) (0.2%). It is therefore concluded that Tricyclazole 22% + Hexaconazole 3% SC fungicide could be used to control rice blast at weekly interval starting from the booting stage for three times. Int J Appl Sci Biotechnol, Vol 3(3): 474-478

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Evaluation of combination spray schedules of Tricyclazole and Pseudomonas fluorescens against blast disease of rice

ORYZA- An International Journal on Rice ◽

10.35709/ory.2021.58.3.8 ◽

2021 ◽

Vol 58 (3) ◽

pp. 419-426

Author(s):

B Bhaskar ◽

R Sarada Jayalakshmi Devi ◽

CPD Rajan ◽

S Vijay Kumar ◽

P Madhu Sudhan ◽

...

Keyword(s):

Adverse Effects ◽

Grain Yield ◽

Pseudomonas Fluorescens ◽

Seed Treatment ◽

Cost Effective ◽

Blast Disease ◽

Food Crop ◽

Important Food ◽

Leaf Blast ◽

Neck Blast

Rice is the most important food crop and directly feeding more people than any other crop in the world.The blast disease caused by Pyricularia oryzae is a major and foremost constraint in rice production.Use of tricyclazole fungicide is one of the best and cost effective ways to quickly manage the disease. Considering the extensive use of fungicide has adverse effects for environment, the present study has been conducted to know the effect of Tricyclazole and Pseudomonas fluorescens alone and various combinations during rabi 2015-2016 and 2016-2017. From the two years data, the results indicated that a spray schedule consisting of tricyclazole followed by an alternate spray of Pseudomonas fluorescens (T + P + T + P), as well as either seed treatment with tricyclazole at 0.1 percent or root dipping with P. fluorescens at 1%, effectively reduced both leaf blast and neck blast with increasing grain yield.

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Intensitas Penyakit Blas (Pyricularia oryzae Cav.) pada Padi Varietas Ciherang di Lokasi Endemik dan Pengaruhnya terhadap Kehilangan Hasil

Agrikultura ◽

10.24198/agrikultura.v27i3.10878 ◽

2016 ◽

Vol 27 (3) ◽

Cited By ~ 3

Author(s):

Tarkus Suganda ◽

Endah Yulia ◽

Fitri Widiantini ◽

Hersanti Hersanti

Keyword(s):

Yield Loss ◽

Block Design ◽

Rice Variety ◽

Pyricularia Oryzae ◽

Control Measures ◽

Blast Disease ◽

Management Policy ◽

Potential Yield ◽

Leaf Blast ◽

Neck Blast

ABSTRACTDisease intensity of blast disease (Pyricularia oryzae Cav.) of Ciherang rice variety at the endemic location and its effect on yield lossBlast is one of the most important diseases of rice worldwide. Many countries have developed data on the intensity and yield loss due to blast disease, whereas Indonesia has no such data resulted from trial specifically designed to estimate blast intensity at the endemic location and its potential yield loss. Such data are needed for various purposes, such as for disease management policy and research background. A trial has been carried out at Desa Bojong, Kecamatan Cikembar, Kabupaten Sukabumi, a location where blast was endemic for years, using var. Ciherang that is known as susceptible and widely grown by farmers. Eight concentrations of fungicide of single as well as mix active ingredients were used to see the effects in suppressing blast diseases compared with of control. Trial used a Randomized Block Design with 5 replicates. The parameters observed were the intensity of leaf blast, neck blast and yield. The results showed that the disease intensity of var. Ciherang at the endemic location was 55.60% of leaf blast and 37.75% of neck blast. The potency of yield loss calculated was 3.65 ton/ha or equal with 61% of the average yield of var. Ciherang as described in its variety description. This number justifies the important of control measures of rice blast diseases.Keywords: Blast disease intensity, var. Ciherang, Potency of yield lossABSTRAKPenyakit blas merupakan salah satu penyakit utama pada tanaman padi di seluruh dunia. Berbagai negara sudah memiliki data tentang intensitas dan kehilangan hasil padi oleh penyakit blas, sementara di Indonesia belum ada hasil pengujian yang khusus dirancang untuk melihat tingkat intensitas penyakit blas di daerah endemik dan potensi kehilangan hasil yang diakibatkannya. Data sejenis ini penting untuk berbagai keperluan antara lain untuk kebijakan pengendalian dan dasar pentingnya penelitian. Suatu percobaan telah dilakukan di Desa Bojong, Kecamatan Cikembar, Kabupaten Sukabumi yang merupakan daerah endemik penyakit blas selama bertahun-tahun, menggunakan var Ciherang yang merupakan varietas rentan namun populer ditanam petani. Delapan bahan aktif fungisida berbahan aktif tunggal dan majemuk digunakan untuk melihat pengaruh penekanannya dibandingkan kontrol. Percobaan menggunakan Rancangan Acak Kelompok dengan lima ulangan. Parameter yang diamati adalah intensitas penyakit blas daun dan blas leher malai serta hasil padi. Hasil percobaan menunjukkan bahwa intensitas penyakit blas pada tanaman padi var. Ciherang di daerah endemik adalah 55,60% untuk blas daun, dan 37,75% untuk blas leher malai. Potensi kehilangan hasil oleh gabungan penyakit blas pada var. Ciherang adalah 3,65 ton/ha atau setara dengan 61% kehilangan hasil jika dibandingkan terhadap rata-rata produksi var. Ciherang menurut spesifikasi varietas. Data ini menjustifikasi perlunya pengambilan tindakan pengendalian penyakit blas pada tanaman padi.Kata Kunci: Intensitas penyakit blas, var. Ciherang, Potensi kehilangan hasil

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