Influence of Spiral Nematodes (Scutellonema spp.) on Maize Performance and Growth under Natural Field Infestation in Mwea, Kenya

Table 4

Relationship between Scutellonema abundance, maize leaf area index (LAI), plant height (PHt), and number of leaves per plant (NoLP) in control plots (treated with nematicide) and MPWN (maize plots with no nematicide) during trial one (2018) and two (2019) at Nyangati study site, Mwea subcounty.

Treatment	Relationship	R-value	value	df
Trial one
Control	Scutellonema vs. LAI	−0.98	<0.001	14
	Scutellonema vs. PHt	−0.98	<0.001	14
	Scutellonema vs. NoLP	−0.93	<0.001	14
MPWN	Scutellonema vs. LAI	0.37	0.155	14
	Scutellonema vs. PHt	0.09	0.755	14
	Scutellonema vs. NoLP	0.01	0.974	14
Trial two
Control	Scutellonema vs. LAI	0.65	0.006	14
	Scutellonema vs. PHt	−0.49	0.052	14
	Scutellonema vs. NoLP	−0.31	0.248	14
MPWN	Scutellonema vs. LAI	−0.54	0.032	14
	Scutellonema vs. PHt	−0.52	0.038	14
	Scutellonema vs. NoLP	−0.71	0.002	14

df = degrees of freedom. , , and .