Table 2.

Coefficient of variation (%) and moments of the frequency distributions of seed mass (Y_p; g per plant), seed number per plant (N_S) and harvest index per plant (H, dimensionless) in soybean, sunflower and maize crops grown at high plant population densities (56·5, 10·3 and 16·9 plants m^–2, respectively)

	Soybean			Sunflower*			Maize
	Y p	N S	H	Y p	N S	H	Y p	N S	H
Mean ± s. e.	7·8 ± 0·6	52 ± 3·7	46 ± 1·4	29·7 ± 1·9	861 ± 44·4	25 ± 1·2	59·8 ± 4·2	240 ± 17·0	33 ± 2·1
Skewness	0·85	0·60	–1·44	0·29	–0·09	–0·94	–0·32	–0·29	–0·71
Kurtosis	0·28	–0·59	1·24	–0·80	–0·66	–0·34	–1·35	–1·49	–1·33
CV	82	77	33	67	53	50	72	73	66
Median	6·5	43	51	28·4	868	31	75·4	308	47
Mode	0·08	1	57	0	0	0	0	0	0

* Early‐senesced plants were excluded from the analysis at maturity.