Science Journal of Applied Mathematics and Statistics, 2016
Leaf area (LA) is a valuable key for evaluating plant growth, therefore rapid, accurate, simple, ... more Leaf area (LA) is a valuable key for evaluating plant growth, therefore rapid, accurate, simple, and nondestructive methods for LA determination are important for physiological and agronomic studies. The objective of this study was to develop a model for leaf area prediction from simple non-destructive measurements in some most commonly cultivated vegetable crops’ accessions in the country. A field experiment was carried out from May to August of 2014 at ‘Hawassa College of Agriculture’s research site, using ten selected most commonly grown vegetable species of Potato (Solanum tuberosum. L), Cabbage (Brassica campestris L.), Pepper (Capsicum annuum L.), Beetroot (Beta vulgaris), Swisschard (Beta vulgaris), Sweet potato (Ipomoea batatas L.), Snapbean (Vicia Snap L.) and Onion (Allium cepa). A standard method (LICOR LI-3000C) was also used for measuring the actual areas of the leaves. All equations produced for leaf area were derived as affected by leaf length and leaf width. As a res...
India is about 1.4 million hectares. India produces a total of about 25-28 million tonnes of pota... more India is about 1.4 million hectares. India produces a total of about 25-28 million tonnes of potatoes every year and ranks fifth in production after China, Russian federation, Poland and Ukarine (FAO, 2008). The productivity of potato in India is about 16-19 tonnes per hectare. In European and American countries the productivity is about 30-40 tonnes per hectare (FAO, 2008). The states of Uttar Pradesh, West Bengal and Bihar account for nearly 3/4 th of the area and 4/5 th of the potato production in the country. The highest area and production are in Uttar Pradesh followed by West Bengal and Bihar. The highest productivity of the crop is in West Bengal followed by Gujarat (Pandey, 2007). Potato is basically a crop of temperate region but there is a large variation in the gene pool with respect to crop's response to thermo periods. Generally potato crop is raised in India when maximum temperatures are below 35°C and minimum temperatures are below 20 0 c with ideal tuberization temperature between 16-22 0 C. Potatoes can be grown in alluvial, hill, black, red and laterite soils having pH in the range of 5.5-8.0 (Pandey, 2007
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