Soybean Lines Response And Two Varieties Of Superior Against Cpmmv (Cowpea Mild Mottle Virus)

Irwan Wijaya, Siti Zubaidah, Heru Kuswantoro

Abstract


Soybean production in Indonesia is still low to fulfill the soybeans demand. Many factors cause the low production of soybean in Indonesia. One of them is disease. Disease that often attack soybean plants is caused by viruses, especially Cowpea mild mottle virus (CpMMV). This research was conducted to study response of 10soybean lines (UM.4-1, UM.7-2, UM.2-4, UM.7-6, UM.6-2, UM.6-3, UM.3-2, UM.6-1, UM.7-3, UM.3-4) and two varieties (Gumitir and Wilis) to CpMMV. Research was conducted at Jambegede Research Station, Indonesian Legume and Tuber Crops Research Institute, Malang, by assessing disease score at 35 days after planting. Results showed that disease intensity of the tested soybean lines and varieties varied between 20 - 28.08%. The lowest disease intensity was shown by Gumitir, while the highest was shown by UM.3-4. Variety of Wilis showed disease intensity higher than Gumitir, namely 21.49%. Other soybean lines showed disease intensity between those two genotypes, namely UM.7-3 (20.21%), UM.6-2 (21.18%), UM.6-1 (21.58%), UM.2-4 (22.64%), UM.3-2 (22.83%), UM.6-3 (22.86%), UM.7-6 (22.89%), UM.7-2 (23.94%), and UM.4-1 (26.10).

Keywords


disease intensity; CpMMV; soybeans

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