PJB-2023-294
The resistance response of six rice varieties against Rice ragged stunt virus from South Sulawesi Indonesia was studied in a greenhouse scale
Saipul Abbas
Abstract
Nilaparvata lugens, also known as the brown planthopper (BPH), is a species of planthopper that feeds on rice plants. These insects can also transmit the Rice ragged stunt virus (RRSV). This study aimed to evaluate the resistance response of six rice varieties against RRSV from South Sulawesi at greenhouse scale. The stages of the study included the preparation of the inoculum source, seeding of rice seeds, rearing of BPH, transmission treatment, and observation of resistance response and symptom scoring based on IRRI (1996) in a greenhouse. Data analysis techniques using Duncan's 5% were also applied. The results showed that the six rice varieties (TN1, Ciherang, Mekongga, Tukad Unda, Inpari 36, Inpari 37) showed varying levels of resistance to the virus, with disease intensity and symptoms such as yellowing leaves, twisting, and plant growth being different for each variety. The Tukad Unda variety showed the highest resistance to the transmission of RRSV, while TN1 and Ciherang varieties were found to be more susceptible, as indicated by higher levels of disease attack and transmission.
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