Twenty three inbred lines obtained at the Instituto Agronômico from the wheat breeding program plus the cultivars BH-1146 and Alondra-S-46 were evaluated in field experiments carried out at Campinas, Capão Bonito and Tatuí Experimental Stations, and at two farms located in Paranapanema Valley, during the period 1984-86. Grain yield, plant height, number of days from emergence to flowering and from emergence to maturation, percentage of lodged plants, head length, number of grains per spike and spikelet, number of spikelets per spike, weight of 100 grains, and resistance to stem and leaf rust were evaluated under field conditions; tests of resistance to stem and leaf rusts and to aluminum were also made, respectively, in greenhouse and in laboratory. The lines 12, 15 and 18 and the cultivars BH-1146 presented good productivity considering the mean of the nine experiments, showing significant differences from the cultivars Alondra-S-46. In relation to stem rust, Alondra-S-46' presented at seedling stage, resistance to the six races and the lines 9 and 11 showed resistance to five and four races, respectively. The lines 2, 3, 6, 10, 11 and 16 and 'Alondra-S-46' under field conditions were the most resistant to stem rust. The lines 2 (IAC-172) and 20 and the cultivars BH-1146 presented low levels of the leaf rust in natural infection out in the field. The lines 3 (IAC-231), 8, 9, 20,21 and 22 and the cultivars Alondra-S-46 showed semi-dwarf type when compared to the tall cultivars BH-1146. The line 20 was considered as a genetic source to increase the head length and the number of grains per spike and per spikelet. The lines 1, 3, 4, 12, 17, 18 and 19 and the 'BH-1146' were tolerant to the presence of 10 mg/liter of Al3+ in the nutrient solution.
wheat; cultivars; lines; grain yield; plant height; stem and leaf rusts; aluminum toxicity; tolerance