Efficacy of organic amendments against the purple blotch of garlic caused by Alternaria porri (Ellis) Cif.

Abstract

Garlic (Allium sativum L.) is an important crop grown throughout world. The crop attacked by various pathogens, among them fungal pathogen Altenaria porri (Ellis) Cif. causing purple blotch disease of garlic is an important plant pathogen and leading to great loss in yield and quality of crop. In this study the response of different organic manure were tested against purple blotch disease of garlic. Among all the treatments, the minimum disease index was recorded in T2 poultry manure (26.87%) followed by T4 neem cake (33.13%), T3 goat manure (33.90 %), T1 farm yard manure (36.00%) and T5 vermi compost (38.67%) as compare to control T0 (48.77%). The maximum plant height was recorded in treatment T2 poultry manure (58.13cm), followed by T4 neem cake (55.93 cm), T3 goat manure (55.40 cm), T1 farm yard manure (55.13cm) while lowest plant height was recorded in T5 vermi compost (51.71cm) as compare to control T0 (46.90 cm). The yield data showed that the maximum yield of garlic was recorded in treatment T2 poultry manure (54.16 q/ha) followed by T4 neem cake (44.16 q/ha), T3 goat manure (42.5 q/ha), farm yard manure (40.00 q/ha) and T5 vermi compost (26.66 q/ha) as compared with control T0 (26.42 q/ha). Result of this study revealed that poultry manure can be used in against purple blotch disease and also showed growth promoting activity.