TOLERANCE LEVEL OF GRAFTED PAPAYA PLANTS AGAINST PAPAYA DIEBACK DISEASE

Authors

  • HASSAN MOHD-AZHAR Horticulture Research Centre, MARDI Headquarters, Persiaran MARDI-UPM, 43400 Serdang, Selangor, Malaysia
  • JOHARI SARIP Horticulture Research Centre, MARDI Headquarters, Persiaran MARDI-UPM, 43400 Serdang, Selangor, Malaysia
  • NOOR FAIMAH GHAZALI Horticulture Research Centre, MARDI Headquarters, Persiaran MARDI-UPM, 43400 Serdang, Selangor, Malaysia
  • MUHAMMAD ZULFA MOHD RAZIKIN Horticulture Research Centre, MARDI Headquarters, Persiaran MARDI-UPM, 43400 Serdang, Selangor, Malaysia
  • ABDUL RAZAK MARIATULQABTIAH Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia

Keywords:

Carica papaya, Eksotika, grafted papaya, highly tolerant rootstock, Viorica

Abstract

Papaya (Carica papaya) cultivars commonly grown in Malaysia, namely Sekaki and Eksotika, are very susceptible to papaya dieback disease (PDD), resulting in reduced production of papayas. As an alternative, grafted papaya seedling using Viorica variety as a highly tolerant rootstock can be introduced to combat PDD. Three grafting combinations of scion/rootstock were used in this study namely Eksotika/Eksotika (E/E), Eksotika/Viorica (E/V) and Viorica/Viorica (V/V). These grafted plants were tested over hot-spot diseased location to evaluate their field tolerance levels against PDD for 14 months of exposure. The occurrence of PDD on grafted papaya plants showed that the disease was mostly found in the E/E combination, with disease severity of 86.7% and a disease score of 4.34, whereas the disease severity and disease score of E/V grafting was 71.0% and 3.55, respectively. The lowest disease occurrence was recorded on V/V plants, with a disease severity of 34.3% and a disease score of 1.72. Results showed that E/E and E/V were highly susceptible, while V/V was tolerant against PDD. Therefore, papaya var. Viorica rootstock proved that it could influence the tolerance level of papaya cv. Eksotika scion against PDD.

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Author Biography

ABDUL RAZAK MARIATULQABTIAH, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia

Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia

Published

05-04-2021

How to Cite

MOHD-AZHAR, H., SARIP, J., GHAZALI, N. F., MOHD RAZIKIN, M. Z., & MARIATULQABTIAH, A. R. . (2021). TOLERANCE LEVEL OF GRAFTED PAPAYA PLANTS AGAINST PAPAYA DIEBACK DISEASE. Malaysian Applied Biology, 50(1), 95–103. Retrieved from https://jms.mabjournal.com/index.php/mab/article/view/16

Issue

Section

Research Articles