The Mexican wheats present agronomic characteristics of interest being recommended for cultivation in soil conditions where aluminum is not a limiting factor or being utilized as genetic sources in breeding programs. The objective of this investigation was to evaluate 18 wheat inbred lines introduced from International Improvement Maize and Wheat Center, Cimmyt, Mexico, and the check cultivars IAC-24 and IAC-289 in trials carried out at Monte Alegre do Sul, SP, Brazil, in limed soil under sprinkler irrigation conditions, during 1999-2002. Grain yield, number of days from emergence to flowering, plant height, lodging, spike length, number of spikelets per spike, number of grains per spike and per spikelet as well as weight of 100 grains were estimated. L1 (SERI M 82) e L15 (UNKNOWN) presented high grain yield. L1 was late and showed high spikelet and grain number per spike and low 100 grain weight and L15 was early to flower and exhibited high 100 grain weight. L3 (FASAN) and L16 (KAUZ*2//TC*6/RL5406(RL6043)/3/KAUZ) had low semidwarf plants; L6 (PRINIA) and L8 (CHIL/BUC) showed long spikes; L3, the largest number spikelet per spike; L9 (MUNIA/KAUZ), the largest number of grain per spike and per spikelet, and L18 (CETTIA), the heaviest grains. During two years, higher grain yield were obtained in higher semidwarf plants of shorter cycle. Higher grain yield plants presented heavier grains, longer heads with higher number of spikelets and grains.
Triticum aestivum L.; grain yield; plant height; agronomic characteristics
