Spot blotch disease of wheat as influenced by foliar trichome and stomata density

Spot blotch, caused by Bipolaris sorokiniana, is a potent biotic constraint to wheat crop leading to substantial yield abatement in warm humid South Asia (e.g. India, Nepal and Bangladesh) and other major wheat-growing countries such as Canada, the United States, Brazil and Australia. A set of 98 br...

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Autores principales:	Shiwarttan Kumar Gupt, Ramesh Chand, Vinod Kumar Mishra, Ram Narayan Ahirwar, Madhav Bhatta, Arun Kumar Joshi
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Triticum aestivum Stomata density Trichome density Spot blotch Agriculture (General) S1-972 Nutrition. Foods and food supply TX341-641
Acceso en línea:	https://doaj.org/article/6e305c3650bb4feb8074580a324efbca
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spelling	oai:doaj.org-article:6e305c3650bb4feb8074580a324efbca2021-11-04T04:39:42ZSpot blotch disease of wheat as influenced by foliar trichome and stomata density2666-154310.1016/j.jafr.2021.100227https://doaj.org/article/6e305c3650bb4feb8074580a324efbca2021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2666154321001290https://doaj.org/toc/2666-1543Spot blotch, caused by Bipolaris sorokiniana, is a potent biotic constraint to wheat crop leading to substantial yield abatement in warm humid South Asia (e.g. India, Nepal and Bangladesh) and other major wheat-growing countries such as Canada, the United States, Brazil and Australia. A set of 98 bread wheat genotypes were evaluated over two growing seasons to investigate the relationship among foliar trichome, stomata density, and susceptibility to the spot blotch pathogen. The higher density of trichomes (90-140 mm−2) on the adaxial surface of flag leaves entrapped 32-74 mm−2 pathogen spores. It restricted the dew droplets size (0.15–0.3 mm2) on the flag leaves and thus prevented direct contact between the spores and the leaf epidermis. Trichome density was negatively associated with the disease development and spore germination but positively associated with grain size and the number of spores entrapped on trichomes per mm2. Conversely, stomata density was positively associated with the development of the disease. Cluster and principal component analyses divided trichome density, the number of spores trapped on trichome per mm2, and thousand grain weight into one group and stomata density, the area under disease progress curve, percent spore germination, and dew scale into another group. The results from this study provided a novel insight to breeders where the selection of bread wheat genotypes with high trichome (90-140 mm−2) and low stomata density (72-90 mm−2) on foliage could enhance spot blotch resistance in wheat.Shiwarttan Kumar GuptRamesh ChandVinod Kumar MishraRam Narayan AhirwarMadhav BhattaArun Kumar JoshiElsevierarticleTriticum aestivumStomata densityTrichome densitySpot blotchAgriculture (General)S1-972Nutrition. Foods and food supplyTX341-641ENJournal of Agriculture and Food Research, Vol 6, Iss , Pp 100227- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Triticum aestivum Stomata density Trichome density Spot blotch Agriculture (General) S1-972 Nutrition. Foods and food supply TX341-641
spellingShingle	Triticum aestivum Stomata density Trichome density Spot blotch Agriculture (General) S1-972 Nutrition. Foods and food supply TX341-641 Shiwarttan Kumar Gupt Ramesh Chand Vinod Kumar Mishra Ram Narayan Ahirwar Madhav Bhatta Arun Kumar Joshi Spot blotch disease of wheat as influenced by foliar trichome and stomata density
description	Spot blotch, caused by Bipolaris sorokiniana, is a potent biotic constraint to wheat crop leading to substantial yield abatement in warm humid South Asia (e.g. India, Nepal and Bangladesh) and other major wheat-growing countries such as Canada, the United States, Brazil and Australia. A set of 98 bread wheat genotypes were evaluated over two growing seasons to investigate the relationship among foliar trichome, stomata density, and susceptibility to the spot blotch pathogen. The higher density of trichomes (90-140 mm−2) on the adaxial surface of flag leaves entrapped 32-74 mm−2 pathogen spores. It restricted the dew droplets size (0.15–0.3 mm2) on the flag leaves and thus prevented direct contact between the spores and the leaf epidermis. Trichome density was negatively associated with the disease development and spore germination but positively associated with grain size and the number of spores entrapped on trichomes per mm2. Conversely, stomata density was positively associated with the development of the disease. Cluster and principal component analyses divided trichome density, the number of spores trapped on trichome per mm2, and thousand grain weight into one group and stomata density, the area under disease progress curve, percent spore germination, and dew scale into another group. The results from this study provided a novel insight to breeders where the selection of bread wheat genotypes with high trichome (90-140 mm−2) and low stomata density (72-90 mm−2) on foliage could enhance spot blotch resistance in wheat.
format	article
author	Shiwarttan Kumar Gupt Ramesh Chand Vinod Kumar Mishra Ram Narayan Ahirwar Madhav Bhatta Arun Kumar Joshi
author_facet	Shiwarttan Kumar Gupt Ramesh Chand Vinod Kumar Mishra Ram Narayan Ahirwar Madhav Bhatta Arun Kumar Joshi
author_sort	Shiwarttan Kumar Gupt
title	Spot blotch disease of wheat as influenced by foliar trichome and stomata density
title_short	Spot blotch disease of wheat as influenced by foliar trichome and stomata density
title_full	Spot blotch disease of wheat as influenced by foliar trichome and stomata density
title_fullStr	Spot blotch disease of wheat as influenced by foliar trichome and stomata density
title_full_unstemmed	Spot blotch disease of wheat as influenced by foliar trichome and stomata density
title_sort	spot blotch disease of wheat as influenced by foliar trichome and stomata density
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/6e305c3650bb4feb8074580a324efbca
work_keys_str_mv	AT shiwarttankumargupt spotblotchdiseaseofwheatasinfluencedbyfoliartrichomeandstomatadensity AT rameshchand spotblotchdiseaseofwheatasinfluencedbyfoliartrichomeandstomatadensity AT vinodkumarmishra spotblotchdiseaseofwheatasinfluencedbyfoliartrichomeandstomatadensity AT ramnarayanahirwar spotblotchdiseaseofwheatasinfluencedbyfoliartrichomeandstomatadensity AT madhavbhatta spotblotchdiseaseofwheatasinfluencedbyfoliartrichomeandstomatadensity AT arunkumarjoshi spotblotchdiseaseofwheatasinfluencedbyfoliartrichomeandstomatadensity
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Spot blotch disease of wheat as influenced by foliar trichome and stomata density

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