Correlation of Leaf Parameters with Incidence of Papaya Ring Spot Virus in Cultivated Papaya and its Wild Relatives

Papaya ring spot virus (PRSV) disease has been the major impediment in papaya cultivation. The disease is transmitted through three aphid vectors and field tolerance towards this disease varies among Carica papaya cultivars as well as within the Vasconcellea genus. Leaf morphological traits are know...

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Autores principales:	Linta Vincent, Soorianathasundaram K, Shivashankara K S
Formato:	article
Lenguaje:	EN
Publicado:	Society for Promotion of Horticulture - Indian Institute of Horticultural Research 2019
Materias:	epicuticular wax content papaya trichome density vasconcellea Plant culture SB1-1110
Acceso en línea:	https://doaj.org/article/82bba06ea92e4dbd9b5b37968efa6281
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spelling	oai:doaj.org-article:82bba06ea92e4dbd9b5b37968efa62812021-12-02T12:10:30ZCorrelation of Leaf Parameters with Incidence of Papaya Ring Spot Virus in Cultivated Papaya and its Wild Relatives0973-354X2582-4899https://doaj.org/article/82bba06ea92e4dbd9b5b37968efa62812019-12-01T00:00:00Zhttps://jhs.iihr.res.in/index.php/jhs/article/view/796https://doaj.org/toc/0973-354Xhttps://doaj.org/toc/2582-4899Papaya ring spot virus (PRSV) disease has been the major impediment in papaya cultivation. The disease is transmitted through three aphid vectors and field tolerance towards this disease varies among Carica papaya cultivars as well as within the Vasconcellea genus. Leaf morphological traits are known to have influence on the probing preferences of aphids. Hence, this study was conducted to know whether the leaf parameters could contribute to the incidence of PRSV possibly by influencing the probing or feeding behaviour of aphid vectors. Leaf parameters viz., leaf thickness, leaf epicuticular wax content, presence and type of trichomes, trichome density were correlated with disease incidence at field conditions. The result revealed that leaf thickness along with epicuticular wax content had significant negative correlation with disease incidence. Similarly, trichome density had negative impact on disease incidence at 99.92% significance level. High epicuticular wax content and high trichome density in V. cauliflora and V. cundinamarcensis were found to be negatively associated with low to very low infection indicating that these parameters may have limited the vector transmission significantly.Linta VincentSoorianathasundaram KShivashankara K SSociety for Promotion of Horticulture - Indian Institute of Horticultural Researcharticleepicuticular wax contentpapayatrichome densityvasconcelleaPlant cultureSB1-1110ENJournal of Horticultural Sciences, Vol 14, Iss 2, Pp 130-136 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	epicuticular wax content papaya trichome density vasconcellea Plant culture SB1-1110
spellingShingle	epicuticular wax content papaya trichome density vasconcellea Plant culture SB1-1110 Linta Vincent Soorianathasundaram K Shivashankara K S Correlation of Leaf Parameters with Incidence of Papaya Ring Spot Virus in Cultivated Papaya and its Wild Relatives
description	Papaya ring spot virus (PRSV) disease has been the major impediment in papaya cultivation. The disease is transmitted through three aphid vectors and field tolerance towards this disease varies among Carica papaya cultivars as well as within the Vasconcellea genus. Leaf morphological traits are known to have influence on the probing preferences of aphids. Hence, this study was conducted to know whether the leaf parameters could contribute to the incidence of PRSV possibly by influencing the probing or feeding behaviour of aphid vectors. Leaf parameters viz., leaf thickness, leaf epicuticular wax content, presence and type of trichomes, trichome density were correlated with disease incidence at field conditions. The result revealed that leaf thickness along with epicuticular wax content had significant negative correlation with disease incidence. Similarly, trichome density had negative impact on disease incidence at 99.92% significance level. High epicuticular wax content and high trichome density in V. cauliflora and V. cundinamarcensis were found to be negatively associated with low to very low infection indicating that these parameters may have limited the vector transmission significantly.
format	article
author	Linta Vincent Soorianathasundaram K Shivashankara K S
author_facet	Linta Vincent Soorianathasundaram K Shivashankara K S
author_sort	Linta Vincent
title	Correlation of Leaf Parameters with Incidence of Papaya Ring Spot Virus in Cultivated Papaya and its Wild Relatives
title_short	Correlation of Leaf Parameters with Incidence of Papaya Ring Spot Virus in Cultivated Papaya and its Wild Relatives
title_full	Correlation of Leaf Parameters with Incidence of Papaya Ring Spot Virus in Cultivated Papaya and its Wild Relatives
title_fullStr	Correlation of Leaf Parameters with Incidence of Papaya Ring Spot Virus in Cultivated Papaya and its Wild Relatives
title_full_unstemmed	Correlation of Leaf Parameters with Incidence of Papaya Ring Spot Virus in Cultivated Papaya and its Wild Relatives
title_sort	correlation of leaf parameters with incidence of papaya ring spot virus in cultivated papaya and its wild relatives
publisher	Society for Promotion of Horticulture - Indian Institute of Horticultural Research
publishDate	2019
url	https://doaj.org/article/82bba06ea92e4dbd9b5b37968efa6281
work_keys_str_mv	AT lintavincent correlationofleafparameterswithincidenceofpapayaringspotvirusincultivatedpapayaanditswildrelatives AT soorianathasundaramk correlationofleafparameterswithincidenceofpapayaringspotvirusincultivatedpapayaanditswildrelatives AT shivashankaraks correlationofleafparameterswithincidenceofpapayaringspotvirusincultivatedpapayaanditswildrelatives
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Correlation of Leaf Parameters with Incidence of Papaya Ring Spot Virus in Cultivated Papaya and its Wild Relatives

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