Japanese Journal of Tropical Agriculture
Online ISSN : 2185-0259
Print ISSN : 0021-5260
ISSN-L : 0021-5260
Relation between Elongation Ability and Internode Elongation of Floating Rice under Rising Water Conditions
Jun INOUYE
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1983 Volume 27 Issue 3 Pages 181-186

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Abstract

Using the new method for measuring elongation ability decided at 1976 Deep-Water Rice Workshop, 60 varieties from Bangladesh, Cambodia, Thailand and Vietnam were examined. A positive correlation was found between plant length and total internode length (r=0.615) . However, there was no correlation between plant length and number of fully emerged leaves from water surface (r=0.235 n.s.), but high positive correlation between total internode length and number of fully emerged leaves (r=0.796) . On the other hand, negative correlations were found between position of the lowest elongated internode and plant length (r= -0.312), number of fully emerged leaves (r= -0.855), and total internode length (r=-0.826) . From these results, it is suggested that the position of the lowest elongated internode can represent the elongation ability of floating rice under deep water conditions.

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