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Adaptability of rice to upland and irrigated conditions: Conference Conference Proceedings of papers presented at the 15th Annual Conference of the Science Association of Nigeria 17th22nd March, 1974, Lagos
In April 1973 twelve rice cultivars were concurrently planted under upland and irrigated conditions. The ratio of grain yields under irrigation to those under upland conditions ranged from 1.16 to 6.31. Those with a high No" I adaptability ratio Here considered to have narrow adaptability. Those with relatively low ratio and with acceptable yields under both conditions.