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   Sweet Potato Varieties
 more...>Sweet Potato Research Station>Sweet Potato Varieties>

Sweet Potato Variety Descriptions

 


Evangeline Sweet Potato TM
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:
  • Soil rot: Intermediate - Resistant
  • Root knot: Highly resistant
  • Fusarium wilt: Resistant
  • Rhizopus soft rot: Resistant
  • Sclerotial blight: Susceptible
  • Fusarium root rot: Resistant

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.


Bonita
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:
  • Soil rot: Intermediate
  • Root knot: Highly resistant
  • Fusarium wilt: Intermediate - resistant
  • Rhizopus soft rot: Susceptible
  • Fusarium root rot: Susceptible
Released by Louisiana Agriculture Experiment Station in 2010.

Reference: 2011 HortScience (in review)

Patent Information:
LaBonte, D.R., C.A. Clark, A.Q. Villordon, and T Smith. 2010. Bonita Sweetpotato. US PP applied for. Trademark applied for.


Murasaki-29
Skin Color: dark purple skin
Flesh Color: white flesh

Susceptible/resistance to common diseases:
  • Soil rot: Intermediate -Resistant
  • Root knot: Highly resistant
  • Fusarium wilt: Resistant
  • Rhizopus soft rot: Highly Resistant
  • Fusarium root rot: Resistant

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.




Beauregard "B-63"

Skin color: light rose skin, fades slightly in storage

Flesh color: moderately deep orange

Susceptibility/resistance to common diseases:

  • Soil rot: Intermediate -Resistant
  • Root knot: Very Succeptable
  • Fusarium wilt: Resistant
  • Bacterial root rot: Susceptible
  • Rhizopus soft rot: Resistant
  • Sclerotial blight: Intermediate
  • Fusarium root rot: Resistant

Released by Louisiana Agricultural Experiment Station

Reference: HortScience 27:377. 1987.




Beauregard "B-14"
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.'


O-Henry

Skin color: cream

Flesh Color: A white-fleshed mutation selected from Beauregard.

Susceptibility/resistance to common diseases: assumed to be similar to Beauregard.




Bienville

Skin color: light rose that fades at harvest

Flesh color: uniform orange, darker than Beauregard

Susceptibility/resistance to common diseases:

  • Soil rot: Intermediate -Resistant
  • Root knot: Resistant
  • Fusarium wilt: Resistant
  • Bacterial root rot: Resistant-Susceptible Intermediate
  • Rhizopus soft rot: Resistant
  • Sclerotial blight: Unknown
  • Fusarium root rot: Resistant

Released by Louisiana Agricultural Experiment Station

Reference: HortScience 38:473-474. 2003.

Patent Information:

United States Patent PP15,380.




Hernandez

Skin color: red

Flesh color: deep orange

Notes: Late developing.

Susceptibility/resistance to common diseases:

  • Soil rot: Intermediate -Resistant
  • Root knot: Intermediate-Resistant
  • Fusarium wilt: Intermediate-Resistant
  • Bacterial root rot: Resistant-Susceptible Intermediate
  • Rhizopus soft rot: Susceptible-Intermediate
  • Sclerotial blight: Unknown
  • Fusarium root rot: Intermediate


Released by Louisiana Agricultural Experiment Station

Reference: HortScience 27:377. 1992.




Heartogold

Skin color: flesh-colored

Flesh color: deep orange

Susceptibility/resistance to common diseases:

  • Soil rot: Susceptible-Intermediate
  • Root knot: Resistant
  • Fusarium wilt: Susceptible
  • Bacterial root rot: Intermediate
  • Rhizopus soft rot: Unknown
  • Sclerotial blight: Susceptible
  • Fusarium root rot: Susceptible-Intermediate

Released by Louisiana Agricultural Experiment Station

Reference: La. AES Annl. Rept. 1947-1948.




Porto Rico (PR-6)

Skin color: copper

Flesh color: salmon-colored

Susceptibility/resistance to common diseases:

  • Soil rot: Susceptible
  • Root knot: Susceptible-Intermediate
  • Fusarium wilt: Susceptible
  • Bacterial root rot: Resistant-Susceptible Intermediate
  • Rhizopus soft rot: Unknown
  • Sclerotial blight: Susceptible
  • Fusarium root rot: Intermediate-Resistant

Released by North Carolina Agricultural Research Service

Reference: N.C. AES Bul. 429. 1966.




Texas Porto Rico (TX PR)
Red-skinned mutation of Porto Rico.

Susceptibility/resistance to common diseases: assumed to be similar to Porto Rico.


Jewel

Skin color: copper

Flesh color: orange

Susceptibility/resistance to common diseases:

  • Soil rot: Susceptible
  • Root knot: Resistant
  • Fusarium wilt: Resistant
  • Bacterial root rot: Intermediate
  • Rhizopus soft rot: Intermediate
  • Sclerotial blight: Intermediate
  • Fusarium root rot: Intermediate

Released by North Carolina Agricultural Research Service

Reference: N.C. Unnumbered Mimeo. Rept. Jan. 1970.




Sweet Potato Variety LA 07-146

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:

  • Soil rot: Intermediate: Resistant
  • Root knot: Intermediate to resistant
  • Fusarium wilt: Resistant
  • Rhizopus soft rot: Highly resistant
  • Fusarium root rot: Resistant

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.




Sweet Potato Variety Orleans

Skin Color: light rose skin indistinguishable from Beauregard.

Flesh Color: orange flesh with an intensity similar to Beauregard.

Susceptible/resistance to common diseases:

  • Soil rot: Intermediate: Intermediate to Resistant
  • Root knot: Susceptible
  • Fusarium wilt: Resistant
  • Rhizopus soft rot: Resistant
  • Bacterial soft rot: Susceptible (Beauregard is Susceptible)
  • Fusarium root rot: Resistant

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.




Variety

Soil rot

Root Knot

Fusarium wilt

Bacterial root rot

Rhizopus soft rot1

Sclerotial blight2

Fusarium root rot

Beauregard

I-R

VS

R

S

R

I

R

Evangeline

I-R

R

R

S

R

I

R

Bonita

I

HR

IR

SI

S

?

S

Murasaki

I-R

HR

R

R

HR

?

R

Bienville

R

R

R

R-SI

R

?

R

Heartogold

S-I

R

S

I

?

S

S-I

Hernandez

I-R

I-R

I-R

R-SI

S-I

?

I

Porto Rico

S

S-I

S

R-SI

?

S

I-R

Texas Porto Rico

assumed similar to Porto Rico

Jewel

S

R

R

I

I

I

I

O'Henry

assumed similar to Beauregard


Legend:
VS = very susceptible, S=susceptible, I=intermediate, HR=Highly Resistant,

R=resistant, and ?=unknown


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.


Last Updated: 9/6/2012 9:06:43 AM

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