IDENTIFICATION OF LENTIL VARIETIES/LINES RESISTANT TO STEMPHYLIUM BLIGHT CONSIDERING DISEASE REACTION AND YIELD

A field experiment was carried out during Rabi seasons of 2011-12 and 2012-13 to evaluate the efficacy of fungicides in controlling Stemphylium blight (S. botryosum) of lentil. Five fungicides were evaluated under higher disease pressure (106 ml-1) of Stemphylium blight. Results revealed that Foliar spray (4 sequences) with Rovral 50WP (Iprodione) @ (0.2%) and Secure 600WG (Fenamidione+Mancozeb) @ (0.2%) at an interval of 7 days effectively controlled the disease and increased yield of lentil by 31.99% and 28.20%, respectively. The fungicides may be selected for control of the disease.Bangladesh J. Agril. Res. 40(2): 229-233 June 2015

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Identification and Molecular Mapping of a Gene Conferring Resistance to Pyrenophora tritici-repentis Race 3 in Tetraploid Wheat

Phytopathology ◽

10.1094/phyto-96-0885 ◽

2006 ◽

Vol 96 (8) ◽

pp. 885-889 ◽

Cited By ~ 39

Author(s):

P. K. Singh ◽

J. L. Gonzalez-Hernandez ◽

M. Mergoum ◽

S. Ali ◽

T. B. Adhikari ◽

...

Keyword(s):

Resistance Genes ◽

Molecular Mapping ◽

Recombinant Inbred Lines ◽

Tetraploid Wheat ◽

Recessive Gene ◽

Tan Spot ◽

Substitution Lines ◽

Disease Reaction ◽

Pyrenophora Tritici Repentis ◽

The Cross

Race 3 of the fungus Pyrenophora tritici-repentis, causal agent of tan spot, induces differential symptoms in tetraploid and hexaploid wheat, causing necrosis and chlorosis, respectively. This study was conducted to examine the genetic control of resistance to necrosis induced by P. tritici-repentis race 3 and to map resistance genes identified in tetraploid wheat (Triticum turgidum). A mapping population of recombinant inbred lines (RILs) was developed from a cross between the resistant genotype T. tur-gidum no. 283 (PI 352519) and the susceptible durum cv. Coulter. Based on the reactions of the Langdon-T. dicoccoides (LDN[DIC]) disomic substitution lines, chromosomal location of the resistance genes was determined and further molecular mapping of the resistance genes for race 3 was conducted in 80 RILs of the cross T. turgidum no. 283/Coulter. Plants were inoculated at the two-leaf stage and disease reaction was assessed 8 days after inoculation based on lesion type. Disease reaction of the LDN(DIC) lines and molecular mapping on the T. turgidum no. 283/Coulter population indicated that the gene, designated tsn2, conditioning resistance to race 3 is located on the long arm of chromosome 3B. Genetic analysis of the F2 generation and of the F4:5 and F6:7 families indicated that a single recessive gene controlled resistance to necrosis induced by race 3 in the cross studied.

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Adoption and profitability of BARI lentil varieties in some selected areas of Bangladesh

Bangladesh Journal of Agricultural Research ◽

10.3329/bjar.v37i4.14384 ◽

2013 ◽

Vol 37 (4) ◽

pp. 593-606 ◽

Cited By ~ 1

Author(s):

MS Rahman ◽

MA Hossain ◽

MJU Sarker ◽

MA Bakr

Keyword(s):

Root Rot ◽

Power Cost ◽

Factors Affecting ◽

Total Cost ◽

Farm Level ◽

Know How ◽

Stemphylium Blight ◽

Positive Effect ◽

Douglas Production Function ◽

Financial Profitability

Lentil is an important pulse crop widely grown in Bangladesh. It ranks first among the pulses in terms of area and consumers preference. BARI has developed many improved lentil varieties and disseminated to the farmers fields. The up-to-date information regarding adoption and financial profitability of this crop are unknown to the researchers and policymakers. Therefore, the study was conducted in Jhenaidah and Jessore districts to determine the adoption status and profitability of BARI lentil production and to examine the factors affecting the yield of BARI lentil during 2010-2011. Cobb-Douglas production function was used. The study revealed that 98% of the total lentil cultivated areas were occupied by BARI lentil varieties in the study areas. The average level of adoption of BARI Masur-3, BARI Masur-4, BARI Masur-5 and BARI Masur-6 were 49%, 47%, 1% and 1%, respectively at farm level. The cultivation of BARI lentil was profitable to the farmers since the per hectare total cost, gross return and net return of BARI lentil cultivation were Tk 52,734, Tk 80,572 and Tk 27,838, respectively. Functional analysis revealed that seed, urea, mechanical power cost and pesticides had positive effect on the yield of lentil production. Unavailability of latest BARI lentil seed, lack of technical know-how, lack of training, and diseases (root rot and stemphylium blight) were the main constraints to BARI lentil cultivation at farm level. BARI Masur-3 and BARI Masur-4 were the highly adopted varieties. The lentil production was profitable to the farmers in the study areas DOI: http://dx.doi.org/10.3329/bjar.v37i4.14384 Bangladesh J. Agril. Res. 37(4): 593-606, December 2012

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Screening of French Bean (Phaseolus vulgaris L.) Genotypes against Alternaria Leaf Spot Caused by (Alternaria alternata) under Dryland Conditions of Kashmir

International Journal of Plant & Soil Science ◽

10.9734/ijpss/2021/v33i2330715 ◽

2021 ◽

pp. 25-30

Author(s):

Sabiya Bashir ◽

Mohammad Najeeb Mughal ◽

Zahida Rashid ◽

Shabeena Majid ◽

Sabeena Naseer ◽

...

Keyword(s):

Alternaria Alternata ◽

Leaf Spot ◽

Disease Incidence ◽

French Bean ◽

Phaseolus Vulgaris L ◽

Dryland Agriculture ◽

Disease Reaction ◽

The Mean ◽

Selection For ◽

Resistant Genotypes

Sixty-three genotypes of french bean was screened against leaf spot (Alternaria alternata) in sick plots at Research Farm of Dryland Agriculture Research Srinagar, Rangreth during Kharif 2018 and 2019. The highest mean disease incidence ranged from 0.00 to 85.00 per cent with the mean disease intensity ranged from 0.00 to 53.26 per cent .One genotype namely ‘Local Pulwama’ was highly susceptible in their disease reaction. Among the screened germplasm, ‘Highly Resistant’ genotypes was SKU-R-601, SKUA-R-105, SKU-R-927, DARS-25, DARS-66, DARS-R-615, while as ‘Susceptible’ genotypes was DARS-8, DARS-12, DARS-11, SKUAST-R-155, SKU-R-928, DARS-7, DARS-R-4, Bhaderwah (L), Local Kupwara black and Raj Jawala. Local Pulwama was found to be a highly susceptible (HS) genotype. Twenty nine genotypes namely., DARS-16, DARS-9, DARS-54, DARS-39, VL-125, DARS-63, ENTO-504, SKUAST-204,SKU-R-925, DARS-60, DARS-109, DARS-43, DARS-44, SKU-R-23, DARS-4, DARS-74, SKU-R-105, DARS-40, DARS-23, DARS-18, SKU-R-71, WB-341, SKU-R-605, Uri local, Shopian (L), SKU-R-23, DARS-71, SSGB-729, DARS-R-19 showed resistant reaction to disease. The selection for resistance was based on the reaction of varieties on leaves.

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Disease reaction to Fusarium avenaceum and yield losses in narrow-leafed lupin lines

Canadian Journal of Plant Science ◽

10.4141/cjps-2013-243 ◽

2014 ◽

pp. 140519061827004

Author(s):

Kan-Fa Chang ◽

Sheau-Fang Hwang ◽

Hafiz U. Ahmed ◽

Stephen Strelkov ◽

Bruce Gossen ◽

...

Keyword(s):

Fusarium Avenaceum ◽

Yield Losses ◽

Disease Reaction

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Verification of disease management technology on lentil against Stemphylium blight at farmer’s field in Nepal

Journal of Agriculture and Natural Resources ◽

10.3126/janr.v1i1.22222 ◽

2018 ◽

Vol 1 (1) ◽

pp. 51-61

Author(s):

Subash Subedi ◽

Sarswati Neupane

Keyword(s):

Lens Culinaris ◽

Block Design ◽

Cost Ratio ◽

Row Spacing ◽

Benefit Cost Ratio ◽

Plot Size ◽

Management Technology ◽

Randomized Complete Block Design ◽

Stemphylium Blight ◽

Benefit Cost

Technologies generated from lentil (Lens culinaris Medik) stemphylium blight (Stemphylium botryosum Walr) management experiments were verified at farmers field of 5 districts viz., Chitawan, Rautahat, Dang, Parsa and Banke during two winter seasons of 2013-2014 and 2014- 2015. The experiment was laid out in randomized complete block design with factorial arrangement of treatments and replicated 4 times. The plot size was 340 m2 (1 Kattha) with 25 cm row to row spacing. There were altogether 3 factors of the experiment i.e. year (2013-2014 and 2014-2015), location (5 districts) and package of practice (improved and farmers practice). The higher crop yield (1142.50 kg/ha) with lower disease index (34.95%) and higher benefit cost ratio of 2.42 were recorded in the farmers field of Banke district following seed rate (30 kg/ha), 8 hour primed improved variety (Black lentil), fertilizer doze of (20:40:20 NPK kg/ha+ 1 kg/ha B basal doze) and subsequent 3 sprays of Dithane M-45 @ 2.5 g/l of water at 10 days interval.

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Evaluation of resistance to stemphylium blight in interspecific recombinant inbred lines derived from Lens culinaris × Lens ervoides

Plant Genetic Resources ◽

10.1017/s1479262120000295 ◽

2020 ◽

Vol 18 (4) ◽

pp. 251-258

Author(s):

Stanley Adobor ◽

Rajib Podder ◽

Sabine Banniza ◽

Albert Vandenberg

Keyword(s):

Disease Severity ◽

Recombinant Inbred ◽

Lens Culinaris ◽

Research Centre ◽

Blight Resistance ◽

Resistant Parent ◽

Controlled Conditions ◽

Severity Scores ◽

Ril Population ◽

Stemphylium Blight

AbstractCultivated lentil suffers yield loss from stemphylium blight, caused by Stemphylium botryosum Wallr. Identification of sources of stemphylium blight resistance and knowledge of the mode of inheritance of resistance are important for developing resistant cultivars. The interspecific recombinant inbred line (RIL) population developed from a cross between the moderately resistant parent Lens culinaris cv. ‘Eston’ and the resistant parent L. ervoides (Brign.) Grande accession IG 72815 was evaluated for stemphylium blight resistance under controlled conditions at the University of Saskatchewan, Saskatoon, Canada, and under field conditions at the Pulses Research Centre (PRC), Ishurdi, Bangladesh. We hypothesized that resistance from both parents will lead to transgressive segregation indicative of pyramiding of resistance genes from the same. However, no resistant transgressive segregants were observed in the RIL population. A large proportion (50%) of the RILs had disease severity levels similar to the resistant parent IG 72815 in experiments conducted under natural disease pressure in Bangladesh. Under controlled conditions in Saskatoon, 38% of RILs had resistance levels similar to IG 72815. Across all environments, 14 RILs consistently had resistance levels similar to IG 72815. The distribution of disease severity scores for all RILs indicated polygenic inheritance of stemphylium blight resistance in the population. RILs with consistent resistant reactions should prove useful for lentil improvement programmes. This will contribute to increasing the productivity of lentil crops in North America and the Indo-Gangetic region, which account for more than 68% of world lentil production.

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