Author:
G Nithila,C Goplakrishnan,S NAKKEERAN,R SARASWATHI,U SIVAKUMAR
Abstract
The rice false smut caused by Ustilaginoidea virens (perfect stage = Villosiclava virens) is aserious threat to rice production. The lab experiment was conducted during the year 2021 inTamil Nadu under in-vitro conditions to investigate the pathogen and its character. On PSA mediumthe colony was creamy white to white, flat, circular and raised. The fluffy, compact, leatheryhyaline mycelium showed septation and the width of the mycelia was about 4.26 μm. On theobverse side of the Petri plate, a slight olive-green tinch was observed. The colony diameterranged from 30 mm to 70 mm. Conidia were hyaline, spherical to globose in shape and warty witha width of 5.24 μm approximately. The chlamydospores were echinulated and spines wereprominently decorated. Overall, the results of the investigation showed that the collected isolatesof false smut were confirmed based on morphological characteristics.
Publisher
Acharya N.G. Ranga Agricultural University
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