Table 2.

Root biomass of a Japanese bread wheat landrace, parents of early, mid- and late green revolution cultivars and two modern cultivars from California and Europe

Genotype	Dwarfing gene	Group	Root biomass (g)	% Pavon 76	Height (cm)
Aka Komugi	rht	Landrace	9·33a*	186	130
Marroqui	rht?	Tunisia	6·38bcd	127	91
Mentana	rht?	Italy	6·19bcd	123	122
Gabo	rht?	Australia	4·00cd	80	90
Nainari 60	rht	early-gr†	7·15ab	142	100
Pavon 76	Rht1	mid-gr	5·00bcd	100	76
Bacanora	Rht1	late-gr	6·22bc	124	87
Rayon	Rht1	late-gr	4·17cd	83	76
Pastor	Rht1	late-gr	3·69d	74	70
Summit	Rht1	late CA	4·49cd	90	68
Zion 19	Rht8	late UK	4·61cd	92	72

* Means followed by the same letters within a column are not significantly different at P ≤ 0·05, using an LSD test.

^† early-gr = early-green revolution cultivar; mid-gr = mid-green revolution cultivar; late-gr = late-green revolution cultivar.