| Autor: |
Jumjunidang, Riska, Hadiati, Sri, Indriyani, Ni Luh Putu, Mansyah, Ellina |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2024, Vol. 2957 Issue 1, p1-6, 6p |
| Abstrakt: |
The main obstacle in dragon fruit cultivation in Indonesia and abroad is stem canker caused by Neoscytalidium dimidiatum. So far, no adequate control techniques have been found against this pathogen. The most effective and efficient control of plant diseases is resistant clones/varieties. This study aims to determine the resistance of clones/types of dragon fruit Hylocereus costaricensis 01 against stem canker. The study was conducted in disease-endemic areas in Padang Pariaman Regency, West Sumatra, from July 2016 to March 2018. The experiment was arranged in paired blocks design with five replicates and a susceptible clone, H. polyrhizus as the control plant. The percentage of the disease attack and disease severity index were measured every two weeks. The results showed that dragon fruit clone H. costaricensis 01 had high resistance to stem canker. At six months, the percentage of the disease attack and disease severity index in the test plants were 7.81±1.99% and 0.08±0.13 and were significantly different from the control plant with a value of 98.44%±1.99 and 2.23±0.39. Resistance of H. costaricensis 01 to stem canker remained stable when the plant was 20 months old, with the percentage of the disease attack and disease severity index was 6.25% and 0.07±0.13, while the control plant was 100% and 2.48±0.57. The clone of H. costaricensis 01 has high resistance to the pathogen N. dimidiatum. However, the fruit size is small and requires assistance in pollination, so these clones can be used as parents in crosses to produce stem cancer-resistant plants. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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