Symptoms of piper yellow mottle virus in black pepper as influenced by temperature and relative humidity.

ABSTRACT: Masking of symptoms in winter and their re-appearance in black pepper (Piper nigrum L.) infected with piper yellow mottle virus (PYMoV) in summer is common, especially on new flushes that appear after pre-monsoon showers. Plants of nineteen cultivars of black pepper infected with PYMoV but without any visible symptoms were grown in a polyhouse under natural conditions and in a greenhouse under controlled conditions from January 2019 to January 2020. The number of plants expressing symptoms in the polyhouse increased gradually from 1% during the 3rd standard meteorological week (SMW) (16 January) to 41% during the 21st SMW (22 May), when the afternoon temperature was 30-40 °C and relative humidity (RH) was 75-93%, but began declining thereafter until the 53rd SMW (1 January), when th

SUBMITTER: Ahamedemujtaba V 

PROVIDER: S-EPMC8324602 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature