Potential Peanut Performance in Double-Cropping Systems¹

The potential for utilizing selected peanut cultivars in multiple-cropping sequences was studied on a Bonifay sand and Tifton loamy sand soil in cropping sequences with grain sorghum, tomato transplants, and cucumbers. The peanut cultivars Pronto, Comet, and Florunner always produced more pods under a 114-day growing period than for a 99-day growing period. In a 99-day growing period, Pronto and Comet produced significantly more peanuts than Florunner. Total sound mature kernels (TSMK) percentages were always greater for a 114—day growing period. Seeding rate did not affect TSMK or OK characteristics. On restricted growth periods (99 days), early-maturing peanut cultivars resulted in higher percentages of TSMK than the late-maturing cultivars. Under small production scale research units, Pronto peanut was planted early – April, or late June – under both clean and conservation type tillage. The moldboard land preparation portion of a tillage experiment resulted in greater yields when peanut was planted early or late in 4-row seeding, but not statistically more than 2-row seeding. Grain sorghum grown at a population of approximately 200,000 plants/ha produced greater yields when planted in July than in August planting. Greater grain yields of sorghum were produced using moldboard land preparation.