tailieunhanh - The effect of viral diseases of large cardamom (Amomum subulatum Roxb.) on production and their management

Large Cardamom is common cultivated spice crop in Nepal as well as in India and Bhutan. Large Cardamom is prone to many diseases, among them viral diseases are annihilative which causes sententious yield loss. Field surveys were conducted during different seasons of 2016-17. Chirke is serious as far as rate of spread is concerned and Foorkey is serious as far as yield loss is concerned. Chirke is caused by Large Cardamom Chirke Virus (LCCV), a new virus species under the genus Macluravirus, family Potyviridae and is characterized by mosaic with pale streak on the leaves. The streaks turn pale brown resulting in drying, withering of leaves and finally death of the plants. The flowering in diseased plants is debased. The chirke disease is transmitted by mechanical sap inoculation and also by aphid (Ropalosiphum maidis Fitch). | The effect of viral diseases of large cardamom Amomum subulatum Roxb. on production and their management

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