Evaluation of various chemicals and botanicals for the management of black mold rot of onion (Allium cepa L.) during storage
2014
Ahmed, M.
Onion is a most important vegetable crop that is being affected by many biotic and abiotic factors, although biotic factors play an important role. All the diseases reduce its yield but black mold rot, is the most damaging fungal disorder. It occurs in storage as well as in the field and causes massive losses up to 30 to 80%. Evaluation for the efficacy of different fungicides and plant extracts at different concentrations against Black mold rot of onion in vitro and in vivo was studied. The results showed that all the fungicides and plant extracts played a significant role in reducing the mycelial growth, rot severity and lesion diameter. Amongst fungicides, carbendazim gave highest reduction followed by mancozeb, and Fludioxonil, respectively. Amongst plant extracts, Syzygium aromaticum was found to be most effective followed by Azadirachta indica and Allium sativum, respectively. The higher concentrations (900 ppm and 30% conc) of all the fungicides and plant extracts proved to be more effective than the lower concentrations (300 ppm and 10% conc). The current study showed effective utilization of fungicides and plant extracts for the control of black rot of onion caused by Aspergillus niger. The statistical analysis of data was done by using Fisher's technique of analysis of variance and least significant difference test (LSD) was used for comparing of means of different treatments at 5% probability level.
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Эту запись предоставил National Agricultural Research Centre