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A Field Screening of a Pomegranate (Punica granatum) Ex-Situ Germplasm Collection for Resistance against the False Spider Mite (Tenuipalpus punicae)

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Title A Field Screening of a Pomegranate (Punica granatum) Ex-Situ Germplasm Collection for Resistance against the False Spider Mite (Tenuipalpus punicae)
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Creator Not Available
Sharavan Manbhar Haldhar
Ramesh Kumar
Mukesh Kumar Berwal
Jagan SIngh Gora
D K Samadia
Pradeep Kumar
Giandomenico Corrado
, Narit Thaochan
 
Subject pest; host resistance; breeding; fruit crop; phytochemicals; leaves; selection; Acari
 
Description Not Available
Mite management is a major problem in pomegranate (Punica granatum L.) cultivation
in the arid and semi-arid regions of India and other Asian countries. The aim of this work was to
investigate the susceptibility to the false spider mite (Tenuipalpus punicae) in a germplasm collection
of Indian pomegranates. A field screening of 73 accessions allowed to define different classes of
susceptibility (from very low to very high) based on the percentage of infested leaves. Twenty-two
accessions, representative of the empirically identified five susceptibility classes, were further tested.
The field screening against the mite, extended to another two years, showed that the infestation level
did not display a significant interaction with the growing season, and highly correlated between
the different growing seasons. The analysis of the tree vegetative growth (height, canopy size,
and stem diameter), main phytochemical classes (total phenolics, flavonoids, and tannins) and the
antioxidant activity of the leaves indicated strong significant negative correlations between the
infestation level and the biochemical traits. Multidimensional reduction of the measured traits
revealed that the extreme classes of susceptibility to mites are mainly separated according to the
accumulation of phytochemicals in leaves. This work, for the first time, allowed the identification of
pomegranate germplasm with low susceptibility to T. punicae, with positive and useful implications
for the establishment of new orchards, plant breeding, and the identification of allelochemicals of the
leaves directly affecting mites.
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Date 2024-03-16T10:22:07Z
2024-03-16T10:22:07Z
2022-10-13
 
Type Article
 
Identifier Haldhar, S.M.; Kumar, R.; Corrado, G.; Berwal, M.K.; Gora, J.S.; Thaochan, N.; Samadia, D.K.; Hussain, T.; Rouphael, Y.; Kumar, P.; et al. A Field Screening of a Pomegranate (Punica granatum) Ex-Situ Germplasm Collection for Resistance against the False Spider Mite (Tenuipalpus punicae). Agriculture 2022, 12, 1686. https://doi.org/10.3390/agriculture12101686
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http://krishi.icar.gov.in/jspui/handle/123456789/81645
 
Language English
 
Relation Not Available;
 
Publisher MDPI