Root volume, determined by displacement of water in a 1 litre cylinder, was assessed in 44-day-old seedlings of 13 varieties. The Japanese upland variety Rikuto Norin 12 had the greatest root volume (31 ml) while IR20, a lowland variety, had the least (10 ml). Root volume was negatively associated with damage caused by drought in the reproductive phase (r = -0.85). Root volume was significantly and positively correlated with both root and shoot length (r = 0.87 and 0.68, respectively) and it was suggested that plant height could be a useful selection criterion for drought resistance.
CITATION STYLE
Zuño-Altoveros, C., Loresto, G. C., Obien, M., & Chang, T. T. (1990). Differences in root volume of selected upland and lowland rice varieties. International Rice Research Newsletter, 15(2), 8 LA-English.
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