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ARS Home » Research » Publications at this Location » Publication #107786
Title: REACTIONS OF LATE SUMMER TRANSPLANTED JALAPENO PEPPER CULTIVARS TO SOUTHERN BLIGHT, 1999

Author
item Russo, Vincent

Submitted to: Biological and Cultural Tests for Control of Plant Diseases
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 11/15/1999
Publication Date: N/A
Citation: N/A

Interpretive Summary: The time of year in which seedlings are transplanted can affect their development and how they interact with pathogens in the environment. The Jalapeno cultivars 'Early Jalapeno', 'Jalapeno M', 'PS 23694-1', 'Delicias', 'TAM Jalapeno #1", 'PACE 103', 'PACE 105', 'PACE 106', 'TAM Sweet Jalapeno' and 'NuMex Primavera' were transplanted into soil infested with a fungal pathogen on 15 July and 20 July 1999 and harvested on 5 October and 12 October 1999. Yield and plant survival were determined. Marketable yields of 'Delicias', 'TAM Jalapeno 1', 'PACE 103' and 'PACE 105' were improved with later transplanting. Plant survival was decreased for 'Early Jalapeno', and increased for 'NuMex Primavera' with later transplanting, but plant survival did not affect yield. Late-summer transplanting to improve yield of Jalapeno peppers appears to be cultivar dependent.

Technical Abstract: Planting date can affect yield in crops including Jalapeno peppers. When transplanted in late-summer a harvest is expected in early-autumn. The transplant window in late-summer is smaller than in the spring. Environmental changes during late-summer and early-autumn can affect both plants and pathogenic organisms which can kill plants or reduce their ability to produce. Seedlings of the Jalapeno cultivars 'Early Jalapeno', 'Jalapeno M', 'PS 23694-1', 'Delicias', 'TAM Jalapeno #1", 'PACE 103', 'PACE 105', 'PACE 106', 'TAM Sweet Jalapeno' and 'NuMex Primavera' were transplanted into soil infested with Sclerotium rolfsii, the causal organism of Southern Blight, on 15 July and 20 July 1999. Single harvests were on 5 October and 12 October 1999. Yield and the percent of plant survival were determined. Marketable yields of 'Delicias', 'TAM Jalapeno 1', 'PACE 103' and 'PACE 105' were improved when transplanting was later. Plant survival decreased for 'Early Jalapeno', and increased for 'NuMex Primavera', with later transplanting, but plant survival did not affect yield. Late-summer transplanting to improve yield of Jalapeno peppers appears to be cultivar dependent.