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Logo of annbotAboutAuthor GuidelinesEditorial BoardAnnals of Botany
 
From:
Published online 2011 August 1. doi: 10.1093/aob/mcr184

Table 4.

Root growth characteristics in the different water regimens (pot experiment)

Total root length (km hill−1)Root number (hill−1)Individual root weight (mg root−1)Individual thick root length (m root−1)Specific root length (m g−1)Fine : thick root ratio
Flooded8·2a1044a10·0b0·87b797a8·23a
Aerobic303·5b537b12·9a1·14ab506b4·72b
Aerobic802·6b420b12·9a1·23a489b4·13b
Aerobic30/flooded43 %51 %129 %130 %63 %57 %
Aerobic80/flooded32 %40 %128 %141 %61 %50 %

Means followed by the same superscript letter within columns are not significantly different (P < 0·05).

In aerobic30 and aerobic80 treatments, irrigation was applied when the soil water potential reached –30 kPa and –80 kPa, respectively.