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Journal Article

Effect of complete plant submergence at different growth stages on grain yield, yield components and nutrient content of rice

M. DEVENDER REDDY and B. N. MITTRA
Plant and Soil
Vol. 86, No. 3 (1985), pp. 379-386
Published by: Springer
Stable URL: http://www.jstor.org/stable/42935937
Page Count: 8

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Topics: Plants, Grains, Rice, Flowering, Seedlings, Tillering, Crops, Tillers, Panicles, Plant growth
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Effect of complete plant submergence at different growth stages on grain yield, yield components and nutrient content of rice
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Abstract

Of the three growth stages viz., seedling establishment, maximum tillering and flowering, complete submergence of plant at flowering stage was found to be most critical followed by seedling establishment and maximum tillering stages. Among the three stages of reproductive growth phase, booting stage was found to be most susceptible to complete submergence followed by flowering and post-flowering. The submergence at booting for 4 days was equally detrimental as that of 6 or 8 days at flowering. Irrespective of the growth stages, the plants subjected to complete submergence showed higher nitrogen content (in plant as well as in grain) as compared to those grown under control conditions (5 ± 2 cm) and increased with the increase in duration of submergence. The P and K contents in the plant decreased under submergence.

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