Table IV. Rubisco, total soluble protein, and chlorophyll contents plus chlorophyll a:b and Rubisco:chlorophyll ratios in each layer through the canopy at the postanthesis stage.

Values are means ± se; n = 6. P values correspond to ANOVA.

Line	Layer	Rubisco	TSP	Chlorophyll	Chlorophyll a:b	Rubisco:Chlorophyll
		g m−2		mg m−2
Parent	Top	2.49 ± 0.16	5.35 ± 0.40	844 ± 49	1.93 ± 0.04	2.95 ± 0.11
	Middle	1.36 ± 0.08	2.95 ± 0.12	723 ± 21	1.79 ± 0.03	1.88 ± 0.09
	Bottom	0.98 ± 0.12	2.30 ± 0.27	602 ± 46	1.79 ± 0.02	1.61 ± 0.01
Line 1	Top	2.92 ± 0.16	6.22 ± 0.27	820 ± 28	1.98 ± 0.05	3.58 ± 0.23
	Middle	1.30 ± 0.17	3.02 ± 0.40	667 ± 39	1.79 ± 0.02	1.92 ± 0.15
	Bottom	0.94 ± 0.14	2.04 ± 0.38	532 ± 55	1.68 ± 0.03	1.74 ± 0.16
Line 2	Top	2.29 ± 0.10	5.22 ± 0.26	734 ± 36	1.99 ± 0.04	3.13 ± 0.10
	Middle	1.12 ± 0.07	2.57 ± 0.20	618 ± 20	1.75 ± 0.03	1.81 ± 0.07
	Bottom	0.62 ± 0.07	1.43 ± 0.16	440 ± 51	1.72 ± 0.05	1.41 ± 0.07
P between lines		0.002	0.019	0.002	0.763	0.015
Mean	Top	2.57	5.60	799	1.96	3.22
	Middle	1.26	2.85	669	1.78	1.87
	Bottom	0.85	1.93	525	1.73	1.58
P between layers		<0.001	<0.001	<0.001	<0.001	<0.001