Variety performance of dry pea performance in a direct seeded and conventional seeded comparison. (C03-guy872238-poster)
Authors:
S.O. Guy* - Univ. of Idaho Y. Wu - Univ. of Idaho
Abstract:
Dry pea is an important rotation crop in small grain based direct seed and conventional tillage systems.
Dry pea variety performance differences are not well researched in tillage systems. This study compares variety performance of dry pea in a replicated conventional tillage (CT) and no-till (NT) comparison near Genesee, Idaho in 2000 to 2003. Averaged across 15 varieties, yield was lower in NT than CT in 2000, due to delayed emergence and weed effects that reduced NT yields. In 2001 and 2002, yields were not different between tillage systems and for ten common varieties averaged 2650 kg ha-1 in CT and 2390 kg ha-1 in NT. Other agronomic characteristics such as plant stands, plant height, pre-harvest crop canopy height, and seed size were not different between tillage systems. In all three years, there were some varieties that yielded significantly less in NT than CT. However, their response was not consistent across years and indicates that the environmental effect of NT will interact with the yearly variation in environment to influence variety performance. In most cases, the best varieties in CT also performed well in NT. Further evaluation of variety response to tillage will be beneficial to help define environmental differences between tillage systems and variety response.
Speaker Information: Stephen Guy, Univ. of Idaho, 375 S. Line St. Dept. of Plant, Soil and Ent. Sci, Moscow, ID 83844-2339; Phone: 208-885-6744; E-mail: [email protected]
Session Information: Wednesday, November 5, 2003, 10:00 AM-12:00 PM Presentation Start: 10:00 AM (Poster Board Number: 404)
