Table 1.

Root biomass of landrace bread wheats from Iran and China, an old Californian cultivar and mid-green revolution cultivars from California, Iraq and Pakistan (data from Ehdaie, 1995, Table 2)

Genotype	Dwarfing gene	Group	Root biomass (g)	% Anza	Height (cm)
Iran 49	rht	Landrace	6·43a*	273	115
Chinese Spring	rht	Landrace	4·38b	186	112
Iran 14	rht	Landrace	3·35c	138	111
Ramona 50	?	CA cultivar	2·70cd	114	108
Anza	Rht1	mid-gr†	2·35d	100	88
Chenab 70	Rht1	mid-gr	2·43cd	103	92
Sholeh	Rht1	mid-gr	2·30d	97	100
Yecora Rojo	Rht1/Rht2	mid-gr	2·00d	85	76

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

^† mid-gr = mid-green revolution cultivar.