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  • Author or Editor: D. S. Bedford x
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Abstract

‘Redwing’ is a primocane-fruiting (“fall-fruiting”) red raspberry (Rubus idaeus L.) cultivar (Fig. 1) developed by the Univ. of Minnesota fruit breeding program. It typically begins fruiting 10 to 14 days earlier than ‘Heritage’, the most widely grown commercial primocane-fruiting cultivar. ‘Redwing’ is intended to supplement or replace ‘Heritage’ in situations where earlier primocane fruiting is desired.

Open Access

Abstract

‘Summercrisp’ is a cold-hardy, early-season pear (Pyrus spp. L.) cultivar introduced by the Univ. of Minnesota for use in cold climates where most pear cultivars grow poorly and do not fruit consistently. The name ‘Summercrisp’ connotes the early harvest season and that the fruit is best consumed without ripening, while the flesh is firm and crisp.

Open Access

Incorporating DNA-informed breeding techniques can improve selection efficiency for desired traits as compared with conventional breeding methods that do not use DNA-informed techniques. Incorporation of DNA technologies requires additional costs associated with reagents, equipment, and labor. To elucidate the cost-effectiveness of DNA-informed breeding in perennial crops with multiple years per generation, we conducted a cost–benefit analysis examining incorporation of marker-assisted selection (MAS), a type of DNA-informed breeding, applied to an apple breeding program. Annual operational costs for a midwest apple breeding program were used to develop a simulation with inputs including itemized costs and per unit costs for procedures at each breeding program stage. Simulations compared costs of MAS breeding techniques to conventional breeding methods to identify the break-even point (BEP) where cost-savings associated with MAS equals the accrued additional costs. Additional sensitivity analyses were conducted to examine changes in laboratory costs, seedling maintenance costs, and seedling evaluation costs. We found the BEP for this program occurs when MAS results in a removal rate of 13.18%, and changes to other costs (i.e., maintenance costs) result in a smaller percent decrease to the overall program budget. Our findings are useful to perennial crop breeding programs in which managers are considering incorporating DNA-informed breeding techniques.

Free access