Submitted to: American Peanut Research and Education Society Abstracts
Publication Type: Abstract Only
Publication Acceptance Date: 4/15/2007
Publication Date: 7/15/2008
Citation: Angadi, S., Nuti, R.C., Puppala, N., Sorensen, R.B. 2008. : light interception in single row, twin row, and diamond planting patterns of valencia peanut. American Peanut Research and Education Society Abstracts. Interpretive Summary: none required.
Technical Abstract: A field study was conducted on a growers farm South of Clovis, NM in 2006 to compare light interception and radiation use efficiency in single row, twin row, and diamond planted Valencia peanuts with line quantum sensors (Apogee instruments, Logan) installed across the crop row. Data were recorded using data loggers (Model CR-1000, Campbell Sci. Logan), Utah between 65 and 150 days after planting. Seasonal patterns of light interception by Valencia peanut were significantly affected by planting patterns. Light interception increased over time and peaked before maturity. Better spatial distribution of peanut plants by diamond planting improved light interception throughout the growing season compared to single row and twin row patterns. The light interception benefits with diamond planting were greater early in the season suggesting a potential benefit of cooler conditions for improved water use efficiency. Plants in twin rows intercepted less radiation earlier in the season; however at mid-season, it was similar to the diamond pattern. The regression analysis explained more than 82% of the variation and the relationship was highly significant. Biomass and yield observations indicated that the improved light interception in diamond planting improved biomass and yield, but not the harvest index. These results suggest that diamond and twin row planting have the potential to improve Valencia peanut yields.