Table 1.

Factors influencing numbers of floating leaves, upright leaves, rhizome branches and rhizome nodes, expressed as F-values

Effect	No. of floating leaves	No. of upright leaves	No. of rhizome branches	No. of rhizome nodes
Temperature	1·121ns	2·755*	3·079*	12·998***
Photoperiod	42·339***	328·833***	90·256***	529·817***
Temperature × Photoperiod	0·689ns	2·755*	1·964ns	4·193**

^*P < 0·05;

^**P < 0·01;

^***P < 0·001;

ns, not significant.