Skin Color: bright red-purple skin.
Flesh Color: reddish underlayer so minor skinning.
Susceptible/resistance to common diseases:
Skin Color: light rose skin indistinguishable from Beauregard.
Flesh Color: orange flesh with an intensity similar to Beauregard.
Susceptible/resistance to common diseases:
Released by Louisiana Agricultural Experiment Station.
Reference: 2012 HortScience submission
Production license available
Patent Information:
LaBonte, D.R., C.A. Clark, T.P. Smith, and A.Q. Villordon. 2011. Patent Applied.
Skin Color: red to purple skin; fades slightly in storage, but very different from the light rose skin of Beauregard.
Flesh Color: deep orange flesh, intermediate between Evangeline and Beauregard.
Susceptible/resistance to common diseases:
Released by Louisiana Agricultural Experiment Station.
Exclusive license
holder.
Special sub-license needed for out-of-state production
Patent Information:
LaBonte, D.R., C.A. Clark, T.P.
Smith, and A.Q. Villordon. 2011. Patent Applied.
Skin Color: copper skin
Flesh Color: bright orange flesh
Susceptible/resistance to common diseases:
Released by Louisiana Agricultural Experiment Station
Reference: 2015. HortScience 50:930-931.
Patent Information:
LaBonte, D.R., C.A. Clark, T.P. Smith, and A.Q. Villordon 2014. LA 06-52 Sweetpotato. Patent applied for.
Skin Color: red
Flesh Color: deep orange flesh
Susceptible/resistance to common diseases:
Released by Louisiana Agricultural Experiment Station
Reference: 2014. HortScience 49:669-671.
Patent Information:
LaBonte, D.R., C.A. Clark, T.P. Smith, and A.Q. Villordon. 2015. LA 04-175 Sweetpotato. U.S. PP 25308
Skin color: light rose skin, fades slightly in storage
Flesh
color: moderately deep orange
Susceptibility/resistance to common
diseases:
Released by Louisiana Agricultural Experiment Station
Reference: HortScience 27:377. 1987.
A hill selection from Beauregard grown in North Carolina. Skin and flesh color
generally similar to B-63. In addition, the B-63 assumes a distinct "twining
habit" starting around 50 days after transplanting. This twining habit is
markedly absent in B-14.
Susceptibility/resistance to common diseases:
Please see information available for Beauregard 'B63.'
Skin Color: light rose skin; fades in storage; slightly more red than Beauregard at harvest.
Flesh Color: intense deep orange flesh.
Susceptible/resistance to common diseases:
Released by Louisiana Agricultural Experiment Station
Reference: 2008 HortScience 43:258-259.
Patent Information:LaBonte, D.R., C.A. Clark, and A.Q. Villordon. 2009. Evangeline Sweetpotato. US PP 19710.
Skin color: cream
Flesh Color: A white-fleshed mutation selected from
Beauregard.
Susceptibility/resistance to common diseases: assumed
to be similar to Beauregard.
Skin Color: dark purple skin
Flesh Color: white flesh
Susceptible/resistance to common diseases:
Released by Louisiana Agricultural Experiment Station
Reference: 2008 HortScience 43:1895-1896.
Patent Information:
LaBonte, D.R., C.A. Clark, and A.Q. Villordon. 2009. Murasaki-29 Sweetpotato. US PP 19955
Skin Color: light tan skin with a pink cast at harvest; fades in storage
Flesh Color: white with a tinge of yellow; ‘O’ Henry’ has a more yellow flesh
Susceptible/resistance to common diseases:
Skin color: copper
Flesh color: salmon-colored
Susceptibility/resistance to common diseases:
Released by North Carolina Agricultural Research Service
Reference: N.C. AES Bul. 429. 1966.
Red-skinned mutation of Porto Rico.
Susceptibility/resistance to common diseases: assumed to be similar to Porto Rico.
Skin color: flesh-colored
Flesh color: deep orange
Susceptibility/resistance to common diseases:
Released by Louisiana Agricultural Experiment Station
Reference: La. AES Annl. Rept. 1947-1948.
Skin color: red
Flesh color: deep orange
Notes: Late developing.
Susceptibility/resistance to common diseases:
Released by Louisiana Agricultural Experiment Station
Reference: HortScience 27:377. 1992.
Skin color: copper
Flesh color: orange
Susceptibility/resistance to common diseases:
Released by North Carolina Agricultural Research Service
Reference: N.C. Unnumbered Mimeo. Rept. Jan. 1970.
Skin color: light rose that fades at harvest
Flesh color: uniform orange, darker than Beauregard
Susceptibility/resistance to common diseases:
Released by Louisiana Agricultural Experiment Station
Reference: HortScience 38:473-474. 2003.
Patent Information:
United States Patent PP15,380.
Sweet Potato Variety |
Rhizopus Soft Rot |
Southern Root-knot Nematode |
Guava Root-knot Nematode |
Soil Rot |
Fusarium Wilt |
Sclerotial Blight |
Fusarium Root Rot |
Bacterial Root Rot |
Bayou Belle |
R |
I-R |
S |
I-R |
R |
- |
- |
S |
Orleans |
R |
S |
S |
R-I |
R |
- |
R |
S |
Beauregard |
R |
S |
S |
R-I |
R |
I |
R |
S |
Bellevue |
I |
HR |
S |
R |
R |
- |
- |
S |
Bonita |
S |
R |
S |
I |
I-R |
- |
S-I |
S |
Evangeline |
R |
HR |
I-S |
I-R |
R |
- |
R |
S |
Murasaki |
R |
HR |
R |
I-R |
R |
R |
||
Covington |
I |
I-R |
S |
I-R |
R |
- |
- |
- |
Burgundy |
- |
R |
- |
I-R |
R |
- |
- |
S |
Centennial |
- |
S |
R |
S |
I-R |
I-S |
I |
R |
Hernandez |
I-S |
R-I |
S |
R-I |
I-R |
- |
I |
R |
Jewel |
I |
I-R |
R |
S |
R |
I |
I |
I |
Porto Rico (Unit 1) |
- |
I-S |
- |
S |
S |
S |
R-I |
R |
S = susceptible reaction, R = resistant reaction, I = intermediate reaction, – = unknown reaction
Soil Rot is a soil-borne disease favored by dry soil and pH above 5.2. Under severe disease pressure, a susceptible variety such as Jewel produces only a few distorted canner-size roots and no marketable yield while and intermediate-resistant variety such as Beauregard produces a normal yield but some roots may have a few lesions on them. No effect is observed on a resistant variety such as Bienville.
Root-knot nematode produces galls on feeder roots and either small bumps or cracks in storage roots, depending on the variety. This nematode is not as common a problem in sweetpotato fields as it once was and only occasionally are Beauregard roots found with the characteristic small bumps.
Fusarium wilt is caused by a fungus that can be both soil-borne and carried in ‘seed’. Most varieties with a rating of intermediate or resistant can be grown without any problems from Fusarium wilt. If a susceptible variety such as Heartogold or Porto Rico is grown in the same land for several years, plants may develop yellowing of older leaves, wilt and die during the growing season.
Bacterial root rot is caused by a bacterium that is carried in contaminated plants that are often symptomless. On susceptible varieties such as Beauregard, a rapid soft rot can quickly turn roots to mush if they are exposed to warm conditions with inadequate air exchange. Bacterial root rot is rarely seen on resistant varieties such as Porto Rico.
Rhizopus soft rot usually develops on cured roots when they are washed and packed for shipment. It causes a rapid soft rot and ‘whiskers’ of the causal fungus break out of the roots. The disease probably develops to some extent on all varieties but to a much greater incidence on susceptible varieties such as Hernandez than on resistant varieties such as Beauregard. Excessive damage to roots during packing or chilling damage to roots increases the susceptibility to this disease.1
Sclerotial blight is caused by a soil-borne fungus and causes wilting and death of plants in the plant bed. It develops to some extent on most varieties, but is more common on some such as Heartogold.2
Fusarium root rot is caused by a soil-borne fungus that infects wounds that occur during harvest. The disease often does not appear until late in storage. It is more common and more severe on susceptible varieties such as Travis and usually is not a problem in Louisiana on resistant varieties such as Beauregard.
1 Screening for Rhizopus soft rot did not begin until the mid-90’s. Old lines were not screened.
2 Resistance to Sclerotial blight is not screened, but observations are made on natural occurrence in beds. However, it is a very patchy disease in the field and it takes quite a while in large beds to get an impression on resistance.