Effect of Initial Inoculum Level of Cowpea mild mottle Carlavirus on Mottle Disease Development and Yield of Soybean

DOI

10.2991/absr.k.210609.005How to use a DOI?

Keywords

Bemisia tabaci, disease incidence, disease rate, dot immunobinding assay

Abstract

Cowpea mild mottle virus (CPMMV) was reported causing systemic mottling, chlorotic blotch, and leaf malformation on cowpea from several tropical regions of Africa, Asia, and South America. Recently, CPMMV infection was reported from several soybean growing areas in Indonesia with high incidence. The disease tends to spread and develop very rapidly. A field experiment at Bogor was conducted to study disease development caused by CPMMV and its impact on soybean cv yield. Wilis. Soybean field was infested by CPMVV at different infection levels, i.e., 0%, 10%, 30%, and 50%. Virus indexing was done at two weeks interval by symptom observation and leaves collection for virus detection using dot immunobinding assay. Mild mottle symptoms were first shown 14 days after planting. The infection rate decreased with the increasing number of initial inoculums, whereas disease incidence increased with the growing number of initial inoculums. The infection of CPMMV caused a reduction of pods number and seed number, i.e., up to 18.81% and 30%, respectively.

Copyright

© 2021, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Mimi Sutrawati
AU  - Sri Hendrastuti Hidayat
AU  - Bonny Purnomo Wahyu Soekarno
AU  - Ali Nurmansyah
PY  - 2021
DA  - 2021/06/11
TI  - Effect of Initial Inoculum Level of Cowpea mild mottle Carlavirus on Mottle Disease Development and Yield of Soybean
BT  - Proceedings of the International Seminar on Promoting Local Resources for Sustainable Agriculture and Development (ISPLRSAD 2020)
PB  - Atlantis Press
SP  - 30
EP  - 35
SN  - 2468-5747
UR  - https://doi.org/10.2991/absr.k.210609.005
DO  - 10.2991/absr.k.210609.005
ID  - Sutrawati2021
ER  -