Differences in eco-physiological responses to the removal of adventitious roots between Syzygium nervosum A. Cunn. ex DC. and Syzygium cumini (L.) Skeels saplings under waterlogging

Table 1 Biomass accumulation and allocation in S. nervosum and S. cumini saplings, as affected by waterlogging with or without adventitious root removal

Species	Treatment	ARM (g • plant^-1 DM)	PRM (g • plant^-1 DM)	SM (g • plant^-1 DM)	LM (g • plant^-1 DM)	TM (g • plant^-1 DM)	BA
S. nervosum	CK	n.a.	5.62±0.17 Ans	7.98±0.54 A***	3.11±0.05 A***	16.7±0.57 A***	0.51±0.03 A***
	WL	1.93±0.17***	1.56±0.08 C***	4.66±0.28 B***	2.81±0.2 AB***	10.96±0.31 B***	0.47±0.02 A***
	AR-R	n.a.	1.98±0.11 B***	4.21±0.37 B***	2.63±0.09 Bns	8.83±0.32 C**	0.29±0.02 B***
	F_W	n.a.	0.000***	0.000***	0.134 ns	0.000***	0.186 ns
	F_AR-R	n.a.	0.039*	0.457ns	0.349 ns	0.003**	0.000***
S. cumini	CK	n.a.	4.94±0.35 a	21.76±0.57 a	11.09±0.43 a	37.79±0.84 a	0.15±0.01 a
	WL	0.70±0.13	0.39±0.04 b	10.86±0.7 b	4.67±0.32 b	16.63±0.65 b	0.07±0.01 b
	AR-R	n.a.	0.34±0.04 b	7.44±0.42 c	3.15±0.21 c	10.94±0.38 c	0.03±0.00 c
	F_W	n.a.	0.000***	0.000***	0.000***	0.000***	0.000***
	F_AR-R	n.a.	0.862 ns	0.001***	0.007**	0.000***	0.011*

Treatment: CK well-watered, WL waterlogging, AR-R adventitious root removal
Abbreviations: ARM adventitious root mass, PRM primary root mass, SM stem mass, LM leaf mass, TM total mass, BA the belowground/aboveground ratio. F_W, waterlogging effect; F_AR-R, adventitious root removal effect. Data presented are means ± SE (n = 5). Different letters indicate significant differences at p<0.05 by analysis of variance (ANOVA). Asterisks following capital letters denote statistically significant differences between the species according to independent-samples t test. ns, p>0.05; ∗p<0.05; ∗∗p<0.01; ∗∗∗p≤0.001; n.a., no adventitious roots

ISSN: 1297-966X