Table 4

	Percent							ug/g
Table 4. Rachis nutrient content in leaf zero healthy and diseased (common spear rot\crown disease) oil palms planted in August, 1987; Coto, Costa Rica).
	N	P	K	Ca	Mg	Cl	S	B	Fe	Cu	Zn	Mn	Al
May, 1989¹
Healthy palm)	0.583	0.202	1.948	0.288	0.217	0.8	0.075	7.5	38.7	12.9	10.3	10.7	19.7
Diseased palm)	1.238	0.347	2.92	0.794	0.509	1.597	0.205	0.3	52.2	19.7	24.8	20.4	27.9
September, 1989
Healthy palm)
C9650²	0.595	0.154	1.194	0.33	0.163	0.06	0.074	7.9	61.3	9.6	10.5	48.4	-
C9590	0.445	0.135	1.405	0.217	0.129	0.054	0.049	7.4	86.5	8.1	7.6	38.8	-
Diseased palm)
C9650	0.887	0.136	1.417	0.408	0.206	0.111	0.073	9.1	71.6	8.9	11.8	67.7	-
December, 1989
Healthy palm
C9650	0.604	0.147	1.248	0.331	0.164	0.08	0.056	8.2	25.9	9.5	8.3	63.2	17.4
C9590	0.599	0.136	1.902	0.232	0.142	0.06	0.056	8	39.2	9.5	10.1	58.4	25
Diseased palm C9650
Rachis without symptoms	0.793	0.124	1.788	0.448	0.198	0.222	0.05	8.6	32.6	9.2	11.2	79	10.7
Rachis with symptoms	1.155	0.157	1.92	0.195	0.347	0.286	0.077	8.7	58.8	11.3	15.7	75.6	43

1. May= beginning of rainy season; September= rainy period; December= end of rainy season
2. C9650= susceptible progeny; C9590= resistant progeny).