Table 4.

Correlation coefficients between the production rates of pollen grains (gr.), microsporophylls (mcrl.) and strobili (str.) per superior production unity

Variables	log (gr./mcrl.)	log (gr./strobilus)	log (gr./branch)	log (gr./tree)	log (mcrl./strobilus)	log (mcrl./tree)	log (str./branch)
log (gr./strobilus)	0·117	–	–	–	–	–	–
	<0·0005
log (gr./branch)	–0·136	0·427	–	–	–	–	–
	0·001	0·002
log (gr./tree)	0·131	0·265	0·684	–	–	–	–
	0·002	0·001	0·826
log (mcrl./strobilus)	–0·129	0·287	–0·175	–0·063	–	–	–
	<0·0005	0·303	0·001	<0·0005
log (mcrl./tree)	–0·0001	0·170	0·461	0·632	0·114	–	–
	0·001	0·002	0·969	0·856	<0·0005
log (str./branch)	–0·203	0·006	0·906	0·628	–0·352	0·419	–
	<0·0005	0·007	0·688	0·535	<0·0005	0·660
log (str./tree)	0·163	–0·242	0·288	0·541	–0·625	0·207	0·446
	0·001	0·004	0·864	0·696	<0·0005	0·834	0·818

Each pair of data represents the correlation coefficient, r, and probability P.