Genetic variability in storage root bulking of cassava genotypes under irrigation and no irrigation

Table 2 Mean squares for storage root yield and yield components

Source of variation	Df	Rt_yld (t/ha)	HI	MRW (g)	Rt_girth [G] (cm)	Rt_length [L] (cm)	L/G ratio	Rt_no/plt	DM%
Genotype (G)	19	195.86***	0.094***	47741***	5.61***	443.69***	69.73***	37.29***	140.18***
Irrigation (I)	1	2047.91***	0.039***	269826***	93.69***	3235.29***	1389.10***	192.22***	87.85***
Harvest time (H)	3	2705.53***	0.216***	392571***	143.83***	3709.37***	156.79***	3.40NS	880.85***
GxI	19	23.91***	0.007**	6158NS	0.72***	33.39NS	9.61**	8.04*	10.52NS
GxH	57	12.01NS	0.003NS	3757NS	1.13***	32.85NS	4.72NS	3.02NS	11.96**
GxIxH	57	6.99NS	0.003NS	4471NS	0.68NS	34.52NS	4.54NS	2.98NS	7.764NS
Error	308	9.21	0.003	3881.00	0.60	33.40	4.11	4.86	7.46

*^,**^, *** P < 0.05, P < 0.01, and P < 0.001, NS Not significant (P > 0.05). Rt_yld (t/ha), storage root yield (t/ha); HI, harvest index; MRW (g), mean storage root weight (g); Rt_girth (cm), storage root girth (cm); Rt_length (cm), storage root length (cm); L/G ratio, storage root length: girth ratio; Rt_no/plt, number of storage roots per plant; DM%, storage root dry matter content (%)

ISSN: 2048-7010