Effect of sowing dates and varieties on severity of white rust in Indian mustard
DOI:
https://doi.org/10.48165/jefa.2024.19.01.33Keywords:
Albugo candida, disease severity, Indian mustard, white rustAbstract
Many biotic and abiotic stresses are liable for reducing the production and productivity of mustard. White rust caused by an obligate biotrophic fungus Albugo candida is one of the most devastating. The experiment was conducted under field conditions to study the management of white rust during rabi season of 2018-19. The results revealed that in field plots, overall mean of per cent disease intensity (PDI) was 26.68 per cent in 5th November sown crop, whereas it was only 19.82 per cent in 22nd October sown crop. Hence, it means PDI of white rust in mustard increased with delay in date of sowing. Among the four varieties tested, it was found that Giriraj in both sowing dates, showed zero per cent disease intensity under Malwa region of Punjab, whereas Varuna found susceptible with maximum mean disease intensity of 34.51 and 45.14 per cent in the crop sown on 22nd October and 5th November, respectively. Alteration sowing time and varietal screening is an ecologically and economically viable option for the management of white rust.
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