Varietal Screening of Radish Genotypes Against Alternaria Leaf Spot (Alternaria raphani) at Western Nepal

Paucity of knowledge on resistant variety, high yield loss ranging from 32- 57% and dearth of knowledge on management of Alternaria leaf spot has been the major concerns in radish production in the world. Our study will aid in multiplication and standardization of the germane variety of radish resis...

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Main Authors: Kavita Adhikari, Chiranjivi Sharma, Anju Karki, Isha Budha Magar, Radhika Chand, Sajana Gharti Magar
Format: Article
Language:English
Published: Turkish Science and Technology Publishing (TURSTEP) 2023-04-01
Series:Turkish Journal of Agriculture: Food Science and Technology
Subjects:
Online Access:http://www.agrifoodscience.com/index.php/TURJAF/article/view/5346
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author Kavita Adhikari
Chiranjivi Sharma
Anju Karki
Isha Budha Magar
Radhika Chand
Sajana Gharti Magar
author_facet Kavita Adhikari
Chiranjivi Sharma
Anju Karki
Isha Budha Magar
Radhika Chand
Sajana Gharti Magar
author_sort Kavita Adhikari
collection DOAJ
description Paucity of knowledge on resistant variety, high yield loss ranging from 32- 57% and dearth of knowledge on management of Alternaria leaf spot has been the major concerns in radish production in the world. Our study will aid in multiplication and standardization of the germane variety of radish resistant to Alternaria leaf spot disease so as to escalate the production, productivity, and the competitiveness in the domestic as well as in the international market. Hence, this experiment was rendered to screen the radish genotypes against Alternaria leaf spot disease in Western Nepal in 2021. Seven genotypes namely Sparkle white F1 hybrid, Korean cross, Palak-patta 35, Pyuthane red, 40 days, Geeta 33, and Mino early were used as the treatment and experiment was laid out in one factorial RCBD design. Each treatment was assigned with 8 plants for observation with 3 replications per treatment. Parameters like days to appearance of disease, incidence of disease on seedling, disease severity (3 scorings), mean score of disease, mean AUDPC and reaction of genotypes were measured during the experiment. Our study unveiled highly significant result for the days to appearance of disease, disease severity, mean score of disease and AUDPC among the genotypes of radish. Alternaria leaf spot first appeared in Pyuthane red (18.33 days) while appeared late in Mino early. Disease severity was found harsh in 40 days at each scoring (57.33, 64.67 and 70.33 respectively); on the contrary severity was minor in Sparkle white at each scoring (26.67, 35 and 44.17 respectively). Similarly, the highest MDS (3.4) and AUDPC (449.8) was found in 40 days, whereas the lowest MDS (1.7) and AUDPC (246.5) was observed in Sparkle white. Ultimately, it is contended that 40 days was found to be moderately susceptible variety while other varieties were found to be moderately resistant.
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spelling doaj.art-50c9c7af9a1043ebbb32c1ff4a7e614d2023-05-12T22:14:19ZengTurkish Science and Technology Publishing (TURSTEP)Turkish Journal of Agriculture: Food Science and Technology2148-127X2023-04-0111463964310.24925/turjaf.v11i4.639-643.53464193Varietal Screening of Radish Genotypes Against Alternaria Leaf Spot (Alternaria raphani) at Western NepalKavita Adhikari0https://orcid.org/0009-0006-5728-1677Chiranjivi Sharma1https://orcid.org/0000-0002-1752-8560Anju Karki2https://orcid.org/0009-0002-4687-1234Isha Budha Magar3https://orcid.org/0009-0007-8206-716XRadhika Chand4https://orcid.org/0009-0007-3102-3773Sajana Gharti Magar5https://orcid.org/0009-0007-6394-2504Institute of Agriculture and Animal Science, Campus of Live Science, Dang, NepalAgriculture and Forestry University, Rampur, Chitwan, NepalInstitute of Agriculture and Animal Science, Campus of Live Science, Dang, NepalInstitute of Agriculture and Animal Science, Campus of Live Science, Dang, NepalInstitute of Agriculture and Animal Science, Campus of Live Science, Dang, NepalInstitute of Agriculture and Animal Science, Campus of Live Science, Dang, NepalPaucity of knowledge on resistant variety, high yield loss ranging from 32- 57% and dearth of knowledge on management of Alternaria leaf spot has been the major concerns in radish production in the world. Our study will aid in multiplication and standardization of the germane variety of radish resistant to Alternaria leaf spot disease so as to escalate the production, productivity, and the competitiveness in the domestic as well as in the international market. Hence, this experiment was rendered to screen the radish genotypes against Alternaria leaf spot disease in Western Nepal in 2021. Seven genotypes namely Sparkle white F1 hybrid, Korean cross, Palak-patta 35, Pyuthane red, 40 days, Geeta 33, and Mino early were used as the treatment and experiment was laid out in one factorial RCBD design. Each treatment was assigned with 8 plants for observation with 3 replications per treatment. Parameters like days to appearance of disease, incidence of disease on seedling, disease severity (3 scorings), mean score of disease, mean AUDPC and reaction of genotypes were measured during the experiment. Our study unveiled highly significant result for the days to appearance of disease, disease severity, mean score of disease and AUDPC among the genotypes of radish. Alternaria leaf spot first appeared in Pyuthane red (18.33 days) while appeared late in Mino early. Disease severity was found harsh in 40 days at each scoring (57.33, 64.67 and 70.33 respectively); on the contrary severity was minor in Sparkle white at each scoring (26.67, 35 and 44.17 respectively). Similarly, the highest MDS (3.4) and AUDPC (449.8) was found in 40 days, whereas the lowest MDS (1.7) and AUDPC (246.5) was observed in Sparkle white. Ultimately, it is contended that 40 days was found to be moderately susceptible variety while other varieties were found to be moderately resistant.http://www.agrifoodscience.com/index.php/TURJAF/article/view/5346radishalternaria raphanigenotypesdisease assessmenthost resistance
spellingShingle Kavita Adhikari
Chiranjivi Sharma
Anju Karki
Isha Budha Magar
Radhika Chand
Sajana Gharti Magar
Varietal Screening of Radish Genotypes Against Alternaria Leaf Spot (Alternaria raphani) at Western Nepal
Turkish Journal of Agriculture: Food Science and Technology
radish
alternaria raphani
genotypes
disease assessment
host resistance
title Varietal Screening of Radish Genotypes Against Alternaria Leaf Spot (Alternaria raphani) at Western Nepal
title_full Varietal Screening of Radish Genotypes Against Alternaria Leaf Spot (Alternaria raphani) at Western Nepal
title_fullStr Varietal Screening of Radish Genotypes Against Alternaria Leaf Spot (Alternaria raphani) at Western Nepal
title_full_unstemmed Varietal Screening of Radish Genotypes Against Alternaria Leaf Spot (Alternaria raphani) at Western Nepal
title_short Varietal Screening of Radish Genotypes Against Alternaria Leaf Spot (Alternaria raphani) at Western Nepal
title_sort varietal screening of radish genotypes against alternaria leaf spot alternaria raphani at western nepal
topic radish
alternaria raphani
genotypes
disease assessment
host resistance
url http://www.agrifoodscience.com/index.php/TURJAF/article/view/5346
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