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Lindsay E. Wyatt, Amara R. Dunn, Matthew Falise, Stephen Reiners, Molly Jahn, Christine D. Smart and Michael Mazourek

Phytophthora capsici is an oomycete pathogen that causes disease on bell pepper (Capsicum annuum) and many other vegetable crops globally. Newly developed bell pepper inbred lines have been shown to be resistant to P. capsici and have been previously evaluated for green harvest yield. Nine P. capsici-resistant inbred lines and three commercial cultivars were evaluated for red harvest yield and fruit characteristics at three sites and disease resistance was evaluated through field inoculation studies. Three of the P. capsici-resistant lines were further evaluated as hybrid parents by measuring hybrid yield and disease resistance. P. capsici-resistant lines had excellent disease resistance and provided high levels of resistance to F1 hybrids. Inbred lines had comparable yields to the commercial cultivars, but fruit were smaller in size and weight. These lines are suitable for use as inbred lines for markets where small fruit size is acceptable and have potential for use as hybrid parents.