Effect of Water Depth, Seedling Age, and Day Length on Elongation Induced by Short-duration Flooding Treatment in Rice

Dwivedi, J. L. and Senadhira, D. and Singh, P. P. and Jha, G. N. and Verma, O. P. (1996) Effect of Water Depth, Seedling Age, and Day Length on Elongation Induced by Short-duration Flooding Treatment in Rice. Pertanika Journal of Tropical Agricultural Science, 19 (1). pp. 55-60. ISSN 0126-6128

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Abstract

Experiments conducted on seedling age and different water depths revealed that short-duration, 7-day flooding of 3 week- old seedling was effective in assessing elongation potential in deepwater rice varieties. Water depths of 90-100 cm were sufficient to express elongating ability and 3-week-old seedlings gave better contrast between elongating modern varieties and non-elongating modern varieties. Maximum internode length was under short-day-length conditions while shortest internodes were obtained in the long day treatment. Internode elongation may be due only to the signal effect of day length or the shading effect on assimilation. Further experiments should be conducted to confirm these findings.

Item Type:Article
Keyword:deepwater rice, photoperiod sensitivity, elongation
Publisher:Universiti Putra Malaysia Press
ID Code:3572
Deposited By: Nasirah Abu Samah
Deposited On:30 Nov 2009 03:50
Last Modified:27 May 2013 07:09

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