. 2003 Jun;91(7):893–903. doi: 10.1093/aob/mcg096

Table 2.

Estimation of leaf nitrogen extinction coefficient k_tn by eqn (9), and fitted values for k_tn and k_en

	L (m² m^–2)	N (g m^–2)	k_r (m² m^–2)	n_b (g m^–2)	k_tn‐calculated (m² m^–2)*	k_tn‐fitted (m² m^–2)^†	k_en‐fitted(m² m^–2)^†
Dreccer et al. (2000)
LNLD42^§	0·294	0·194	0·590	0·35	0·277	0·663	1·287
LNLD64	0·421	0·266	0·590	0·35	0·263	0·315	0·708
LNLD78	0·502	0·458	0·640	0·35	0·394	0·611	1·059
LNLD92	0·591	0·560	0·890	0·35	0·558	0·776	1·240
LNHD42	0·372	0·236	0·660	0·35	0·296	1·072	2·547
LNHD64	0·704	0·405	0·420	0·35	0·164	0·364	0·964
LNHD78	0·772	0·501	0·420	0·35	0·193	1·087	2·450
LNHD92	1·010	0·950	0·620	0·35	0·386	0·318	0·537
HNLD42	0·656	0·523	0·490	0·35	0·274	–0·142^‡	–0·217^‡
HNLD64	1·404	1·173	0·370	0·35	0·214	0·441	0·802
HNLD78	1·644	1·460	0·390	0·35	0·234	0·360	0·638
HNLD92	2·522	2·790	0·420	0·35	0·281	0·285	0·425
HNHD42	0·908	0·779	0·410	0·35	0·242	0·425	0·727
HNHD64	1·387	1·120	0·530	0·35	0·297	0·528	0·980
HNHD78	2·332	2·022	0·330	0·35	0·194	0·410	0·791
HNHD92	3·139	3·220	0·430	0·35	0·274	0·365	0·639
Del Pozo and Dennett (1999)
HD July12	6·800	9·861	0·655	0·66	0·264	0·193	0·472
HD July29	3·900	7·263	0·835	0·66	0·450	0·214	0·378
LD July12	3·250	5·722	0·927	0·66	0·494	0·305	0·591
LD July29	2·800	5·586	0·935	0·66	0·556	0·242	0·368
Anten et al. (1995a)
Oryza	5·480	6·320	0·469	0·36	0·288	0·115	0·175
Glycine	4·760	7·563	0·749	0·41	0·459	0·262	0·389
Sorghum	5·920	5·522	0·631	0·18	0·424	0·115	0·148
Amaranthus	4·990	5·905	0·779	0·35	0·435	0·297	0·462

* Calculated using eqn (9).

^† Fitted to the profile data using eqn (1) for k_tn and using eqn (3) for k_en.

^‡ Negative value due to small cloud of data points.

^§ HN, High nitrogen supply; LN, low nitrogen supply; HD, high density; LD, low density; the number following these codes refers to sampling time (days after germination).