Screening of pigeonpea genotypes against wilt and sterility mosaic disease in Telangana state, India

Bhaskar, A Vijaya

doi:10.18805/ijare.v50i2.9589

Cited by 3 publications

(3 citation statements)

References 2 publications

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“…These cultivars clustered at the origin in the AMMI2 biplot. The stable performance of ICP9174 and ICP8863 as resistant checks, as well as ICP2376 and BAHAR as susceptible checks, has been previously reported by Reddy and colleagues [11,24,55]. In the GGE biplot view of the pathogenicity test, it was apparent that BDN-2 was the ideal cultivar for HD studies, and all the Fusarium isolates were effective in causing disease in the ICP2376 and BAHAR HDs.…”

Section: Discussionsupporting

confidence: 59%

Genetic diversity and population structure of Fusarium udum in India and its correlation with pigeonpea wilt incidence

Deepak Reddy,

Kumar,

Sahni

et al. 2024

J Basic Microbiol

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In a study conducted in India, 50 Fusarium isolates were collected from pigeonpea growing regions and extensively examined for their cultural and morphological characteristics. These isolates exhibited significant variations in traits including growth rate, mycelial growth patterns, color, zonation, pigmentation, spore size, and septation. Subsequently, 30 isolates were chosen for pathogenicity testing on eight pigeonpea genotypes. Results showed distinct reactions, with four genotypes displaying differential responses (ICP8858, ICP8859, ICP8862, and BDN‐2), while ICP9174 and ICP8863 consistently exhibited resistance and ICP2376 and BAHAR remained susceptible to wilt disease. To study the interaction between Fusarium isolates and pigeonpea host differentials (HDs), an additive main effects and multiplicative interaction analysis was conducted. The majority of disease incidence variation (75.54%) was attributed to HD effects, while Fusarium isolate effects accounted for only 1.99%. The interaction between Isolates and HDs (I × HD) contributed 21.95% to the total variation, being smaller than HD but larger than I. Based on HD reactions, isolates were classified into nine variants, showing varying distributions across pigeonpea growing states, with variants 2 and 3 being prevalent in several regions. This diversity underscores the need for location‐specific wilt‐resistant pigeonpea cultivars. Furthermore, genetic analysis of 23 representative isolates, through internal transcribed spacer region of ribosomal DNA and translation elongation factor 1‐α gene sequencing, revealed three major clusters: Fusarium udum, Fusarium solani, and Fusarium equiseti. These findings hold potential for developing location‐specific wilt‐resistant pigeonpea cultivars and enhancing disease management strategies.

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Section: Discussionsupporting

confidence: 59%

Genetic diversity and population structure of Fusarium udum in India and its correlation with pigeonpea wilt incidence

Deepak Reddy,

Kumar,

Sahni

et al. 2024

J Basic Microbiol

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“…A similar kind of results was reported in earlier studies where 52 AICRP Pigeonpea genotypes and checks were screened for SMD, and out of that, only eight entries viz. ICPL-87119, ICPL-2376, BDN-2, PT-4-307, CORG-9701, BSMR-736, GRG-811, and BSMR-853 were resistant entries (Bhaskar, 2016). In the past study, 61 Hyderabad accessions were tested against SMD, only two entries viz.…”

Section: Identification Of Resistant Genotypesmentioning

confidence: 97%

Molecular Markers Linked with Sterility Mosaic Resistance in Pigeonpea (Cajanus cajan L. Millsp.)

Kandarkar¹,

Kute²,

Tajne³

et al. 2023

EEC

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Background: Pigeonpea is an important protein-rich legume and one of the potential crops for rainfed agriculture in many parts of the semi-arid tropics. Worldwide, India ranks first both in area and production. Despite that, the productivity levels in India are low because of various biotic and abiotic stresses, out of which Sterility mosaic disease (SMD), which is caused by Pigeonpea Sterility Mosaic Virus (PPSMV), is a severe constraint during crop production. In the context of the above facts, resistant breeding is one of the most economical and eco-friendly approaches. The present investigation aimed to identify microsatellite markers linked to SMD resistance and potential resistant genetic resources. In this field- laboratory investigation carried out during 2017-2018, thirty genotypes and susceptible check ICP 8863 were evaluated in a randomized block design (RBD) with two replications in SMD sick plots. Observations were recorded based on visual symptoms for SMD incidence, and percent disease incidence (PDI) was calculated. In addition, a molecular study for the same genotypes was carried out with a total of 20 SSR markers. Out of 20 SSR primers, only 16 were amplified, from which only a single SSR marker (AHSSR20) showed polymorphism while the remaining 15 were monomorphic. The marker AHSSR20 have the potential to discriminate resistant and susceptible genotypes. AHSSR 20 primer assign 160 bp bands in resistant genotypes viz., BDN-711, PT-04-281, and PT-704-1-2 while ever, 172 bp bands assign in susceptible genotypes viz. ICP-8863, PT-04-378, PT-012-20, and PT-016-3. Accordingly, we conclude that AHSSR20 is a potent marker that can be helpful to discriminate between susceptible and resistant genotypes and can be used for direct selection of resistant genotypes during early segregating generation and marker-assisted breeding.

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“…Dipshikha Kaushik et al [12] found a negative link between mite population and heavy rainfall because it prevents mites from multiplying quickly. Furthermore, Vijaya Bhaskar [13], Roy Abhay Nath, and Kumar Birendra [14] discovered three resistant genotypes and twelve moderately resistant genotypes to sterility mosaic disease against the tick variety.…”

Section: Per Cent Smd Incidencementioning

confidence: 99%

Performance of Pigeonpea Varieties against Sterility Mosaic Disease (SMD) for Rainfed Regions of Prakasam District, Andhra Pradesh, India

Rajesh Chowdary L.,

Haritha P.,

Pramila Rani B.

2023

IJPSS

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Pigeonpea is one of India's most important grain legumes, accounting for 90 per cent of global production. It is primarily farmed and consumed in poor nations, with India being a major producer. The area under Red gram crop in Prakasam district is about 1,00,000 hectares, which is under Rainfed cultivation during Kharif season, as a sole crop. The occurrence of Sterility Mosaic Disease (SMD) has resulted in significant yield loss over the last three years in Prakasam District. As a result, the current study was done to investigate the performance of seven varieties for the disease incidence and yield attributes that are suitable for rainfed region of Prakasam district were evaluated. Among the varieties evaluated, no disease incidence was observed in BSMR 736 (842 kg/ha), ICPL87119 (816 kg/ha) followed by TRG 59 with disease incidence of 8.67 per cent and yield of 756 kg/ha. The variety GRG 152 recorded disease incidence of 4.47 per cent and yield of 610 kg/ha. The variety LRG 105 recorded disease incidence of 26.33 per cent and yield of 546 kg/ha which was found to be moderately resistant. These findings are important for choosing resistant genotypes and can be used to validate and generate more SMD resistant pigeonpea genotypes in the future.

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Screening of pigeonpea genotypes against wilt and sterility mosaic disease in Telangana state, India

Cited by 3 publications

References 2 publications

Genetic diversity and population structure of Fusarium udum in India and its correlation with pigeonpea wilt incidence

Genetic diversity and population structure of Fusarium udum in India and its correlation with pigeonpea wilt incidence

Molecular Markers Linked with Sterility Mosaic Resistance in Pigeonpea (Cajanus cajan L. Millsp.)

Performance of Pigeonpea Varieties against Sterility Mosaic Disease (SMD) for Rainfed Regions of Prakasam District, Andhra Pradesh, India

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