tailieunhanh - Citrus decline

Citrus, a collective generic term, comprising a number of species and varieties of fruits, popular at global level for their characteristics flavor and attractive range of colours, citrus fruits are good source of vitamin-C. It is originated from southern slopes of Himalayas, entire north-eastern region of India and adjacent China. Citrus consists of number of species but 8 species are generally cultivated for edible purpose. Citrus is spread throughout the tropics and subtropics, roughly 40°N and 40°S latitudes. The major region subtropical latitude of northern hemisphere is North America, Mediterranean, East Asia including India and southern hemisphere is South America, South Africa, Australia. The total global area on citrus accounts to million hectares producing million tonnes. India covers thousand ha and producing 11655 thousand tonnes of citrus. Northeastern states are accounting 147 thousand hectares citrus groves producing 868 (‘000 tonnes). | 2018 7 4 xx-xx EXCELLENT PUBLISHERS International Journal of Current Microbiology and Applied Sciences ISSN 2319-7706 Volume 7 Number 04 2018 Journal homepage http Review Article https Citrus Decline Ashok Kumar Meena Francis Dutta Mingnam Ch. Marak and . Meena Department of Horticulture Assam Agricultural University Jorhat India Corresponding author ABSTRACT Keywords Citrus Vitamin C China Fruits Article Info Accepted 23 March 2018 Available Online 10 April 2018 Citrus a collective generic term comprising a number of species and varieties of fruits popular at global level for their characteristics flavor and attractive range of colours citrus fruits are good source of vitamin-C. It is originated from southern slopes of Himalayas entire north-eastern region of India and adjacent China. Citrus consists of number of species but 8 species are generally cultivated for edible purpose. Citrus is spread throughout the tropics and subtropics roughly 40 N and 40 S latitudes. The major region subtropical latitude of northern hemisphere is North America Mediterranean East Asia including India and southern hemisphere is South America South Africa Australia. The total global area on citrus accounts to million hectares producing million tonnes. India covers thousand ha and producing 11655 thousand tonnes of citrus. Northeastern states are accounting 147 thousand hectares citrus groves producing 868 000 tonnes . Assam covers 29 thousand hectares citrus area and producing 309 thousand tonnes. India has 4th position at global level in citrus production. It is 3rd most important fruit crop in India. Citrus growing regions of the world are threatened by a complex problem causing the decline of citrus orchards citrus decline is serious setback in all over the world. Citrus decline complex problem gradually decline of production productivity of orchards finally orchards become .