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Modoc (NDO4300-1R)is an early maturing, round to oval, red skinned clone suitable for fresh market use.  It produces total yields slightly lower than those of Dark Red Norland and Red LaSoda but with a more desirable size profile, with higher yields of small, high-value tubers, and fewer culls. Tubers are round to oval, and seldom exhibit growth cracks or irregular shape common to Dark Red Norland and Red LaSoda. The tubers are a uniform bright skin color that does not fade in storage, and have shallow eye depth compared to Red LaSoda. Modoc tubers have specific gravity (total solids/starch) similar to Dark Red Norland and Red LaSoda.  Internal defects, including hollow heart and brown center, and external growth cracks occur less frequently than in Dark Red Norland or Red LaSoda.

Modoc vines mature slightly earlier than Red LaSoda, and are sensitive to metribuzin injury. Modoc is susceptible to most fungal diseases.  Experience with seed increases indicate it is not particularly susceptible to virus diseases and expresses readily discernible foliar symptoms to PVY. It is susceptible to late blight foliar and tuber infection.




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