Abstract

The

objective of this study was to evaluate the effects of sowing

dates and seeding rates on triticale seed yield and quality.

This work was performed during the autumn-winter season

in 2006-2007, at the research station of The Technological

Institute of Roque, located at km 8 of the highway Celaya-

Juventino Rosas, Celaya, Guanajuato, Mexico. We used three

cultivars of triticale of different genetic origin (Roque I, AN-

31 and AN-105) with one formula per hectare of 120-100-

100, NPK. Three sowing dates were evaluated, November

9, November 23, and December 7, and fi ve seeding rates

at each planting date, 50 kg/ha, 75 kg/ha, 100 kg/ha, 125

kg/ha and 150 kg/ha. The variables evaluated were plant

height, ear length, seed yield, vigor, and germination. The

experimental design was a randomized complete block

design with a factorial arrangement. The optimal sowing

date for seed production was November 9, resulting in a

yield of 5,305 t/ha. This treatment resulted in the highest

values for ear length, plant height, vigor, and germination.

When selecting important traits to produce high quality seed,

through sowing density, the highest plant population was

obtained with 125 kg/ha resulting in a yield of 3,834 t/ha,

vigor of 82.0% and germination of 89.83%.

Keywords: Forage, agronomic management, population density, vigor and germination.