Management of Purple Blotch [alternaria Porri] Disease of Onion

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The investigation was conducted at Department of Plant Pathology, Junagadh Agricultural University, Junagadh of Gujarat sate, India. where used differnt Agrochemicals and bioagents tested. Among systemic fungicides, hexaconazole were found to be the most effective fungicides and inhibited (99.6 %) per cent mycelial growth in vitro. Among non-systemic fungicides, mancozeb (83.5 %) and copper oxychloride (78.5 %) were quite effective. Among herbicides, pendimethalin and among insecticides profenofos were the best in vitro. Aqueous extracts of garlic (60.0 %) and turmeric (26.5 %) inhibited the mycelial growth of the fungus and extracts of mehandi also promising. The bulb yield increased in protected plots with Hexaconazole (0.005 %) over unprotected plots was 3.80 Kg/plot (94.06 per cent increase). Hexaconazole (0.005 %) was proved the best in controlling the disease in vivo resulting in higher bulb yield. T. viride-I (20x108 cfu/gm) was found most effective in vivo and resulting higher bulb yield. During the field survey maximum disease observed (17 to 70 %) at Mahuva taluka of Bhavanagar district and minimum disease observed (15 to 27 %) at Una taluka of Junagadh district.
Autor: S. V. Undhad, B. K. Chovatiya, M. K. Ghelani
Prof. S. V. Undhad is Scientist (Plant Protection) in Krishi Vigyan Kendra, Junagadh Agricultural University, Pipalia since 2015. He Published more than 9 research paper in international and national level journals in subject of Plant Pathology. He has participated in several seminar/symposium/conference.

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Autor: S. V. Undhad
ISBN-13 :: 9783330074927
ISBN: 3330074922
Erscheinungsjahr: 30.05.2017
Verlag: LAP Lambert Academic Publishing
Gewicht: 124g
Seiten: 72
Sprache: Englisch
Sonstiges: Taschenbuch, 220x150x4 mm
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