| Abstract Detail
Production and Management Bohl, William [1], Love, Stephen [2], Salaiz, Thomas [2]. Tuber orientation, stolon length, and green tuber yield of Summit Russet and Defender potato cultivars as affected by hill shape. DEFENDER is a white-skinned processing potato cultivar observed to have susceptibility to field greening. Hill shape may affect stolon length and green tuber yield of Defender as compared to a russeted cultivar such as Summit Russet. Defender and Summit Russet seed pieces were planted 15 cm deep and 25 cm apart in 91-cm rows. Preemergence hilling treatments were: drag to a flat surface forming a 10-cm hill (plant and drag); formation of a hill 15 cm high (broad hill); a 25-cm hill (normal hill); and a 32-cm hill (peaked hill) as measured from the bottom of the furrow to the top of the hill. Prior to harvest, two plants per plot were excavated to determine tuber depth and spatial orientation. With zero degrees corresponding to the north in rows planted in a north/south direction, four 90-degree quadrants were defined as: N, 315 to 45; E, 45 to 135; S, 135 to 225, and W, 225 to 315 degrees. Tubers per plant or per quadrant were not affected by hill shape for either cultivar. Averaged over hill shapes, significantly fewer tubers were in the north vs. east quadrant for Summit Russet. The east quadrant of Defender had significantly more tubers than north and south. Stolon length of both cultivars was not affected by hill shape or by quadrant location. Defender green yield was significantly lower with peaked or normal hills, but hill shape had no effect on Summit Russet green yield.
Log in to add this item to your schedule
1 - University of Idaho, 583 W Sexton Street, Blackfoot, ID, 83221, USA
2 - University of Idaho, Aberdeen Reseach and Extension Center, P.O. Box 870, Aberdeen, ID, 83210, U.S.A
Keywords:
none specified
Session: PAA13-7
Location: Hall of Ideas Room E/Monona Terrace
Date: Tuesday, July 25th, 2006
Time: 3:30 PM
Abstract ID:227 |
