Pentland Javelin Potatoes: Exquisite Potato Breed

When it comes to potatoes, there is an astonishing variety of shapes, sizes, and flavors to choose from. One such gem in the world of spuds is the Pentland Javelin potatoes, a distinguished potato breed that hails from the United Kingdom. Renowned for its distinctive characteristics, this potato has made a significant impact on the culinary scene. In this article, we delve into the intriguing features of the Pentland Javelin potato breed.

Plant Characteristics

The Pentland Javelin potato is celebrated for its unique set of plant characteristics, which contribute to its remarkable growth and appeal. Let’s take a closer look:

  1. Maturity – Very Early: The Pentland Javelin is classified as a very early maturing potato variety. This means that it reaches its full maturity quicker than most other potato varieties. This characteristic makes it a preferred choice for growers who want a swift and reliable harvest.
  2. Growth Habit – Semi-Erect to Erect: The growth habit of this potato plant can be described as semi-erect to erect. This means that the plant stands upright but may have a slight tilt. This growth pattern aids in efficient space utilization and ease of cultivation.
  3. Foliage Cover – Moderate to Good: The foliage cover of the Pentland Javelin potato plant varies from moderate to good. This range suggests that the plant’s leaves provide decent coverage over the soil, contributing to weed suppression and moisture retention.
  4. Flower Colour – White: The blossoms of the Pentland Javelin potato plant are elegant and white in color. These white flowers stand out against the lush green foliage and are a testament to the plant’s natural beauty.
  5. Flower Frequency – Rare: Interestingly, the Pentland Javelin potato plant tends to produce flowers infrequently. This rarity might be attributed to its focus on producing its starchy tubers rather than investing energy in flowering and setting seeds.
  6. Berries – Rare: Similar to its flower frequency, the production of berries by the Pentland Javelin potato plant is also a rare occurrence. Berries are fruits that contain potato seeds, and their rarity suggests that this variety is primarily propagated through other means, such as tubers.
  7. Stolon Length – Short to Medium: Stolons are horizontal stems that grow beneath the soil’s surface and give rise to new tubers. This breed of potato has stolons of short to medium length, which aids in the development of its tubers.
  8. Light Sprout Colour – Pink: The initial sprouts that emerge from the potato tubers before planting are referred to as light sprouts. The Pentland Javelin exhibits a unique pink hue in its light sprouts, adding a touch of visual distinction.

Tuber Characteristics: Unveiling the Distinctive Traits of Pentland Javelin Potatoes

The Pentland Javelin potato breed’s uniqueness extends beyond its plant characteristics to its tuber traits. From the skin color to the flesh texture, each aspect of the tuber contributes to the overall appeal of this extraordinary variety. Let’s delve into the intriguing world of its tuber characteristics:

  1. Tuber Skin Colour – White to Yellow: The outer skin of the Pentland Javelin tuber showcases a range of hues, transitioning from white to yellow. This variance in skin color adds an aesthetic dimension to the potatoes and distinguishes them from other varieties.
  2. Tuber Eye Colour – Yellow: The eyes of this potato exhibit a warm and inviting yellow color. These eyes are the small indentations on the potato’s surface that give it its characteristic appearance.
  3. Primary Tuber Flesh Colour – White and Cream: The flesh of the Pentland Javelin potatoes can be found in shades of white and cream. This coloration makes them versatile for various culinary applications, from crispy French fries to creamy mashed potatoes.
  4. Tuber Shape – Oval to Round: The shape of its tubers ranges from oval to round. This variability in shape ensures that each potato has a unique yet recognizable form, making them a visually appealing addition to any dish.
  5. Tuber Eye Depth – Shallow to Very Shallow: The depth of the eyes, or indentations, on the Pentland Javelin potatoes’ surface is shallow to very shallow. This characteristic is advantageous when it comes to culinary preparation, as shallow eyes reduce the need for excessive peeling and result in less wastage.
  6. Tuber Skin Texture – Smooth to Very Smooth: The texture of the this breed tuber skin can be described as smooth to very smooth. This trait not only adds to their aesthetic charm but also makes them easy to clean and prepare for cooking.

The oval-to-round shape of Pentland Javelin potatoes is ideal for various cooking methods. Their shallow to very shallow eyes make them easier to peel and minimize the loss of edible portions, ensuring that more of the potato is utilized in your favorite recipes.

Potent Tubering Characteristics of Pentland Javelin Potatoes

Diving deeper into the distinctive traits of Pentland Javelin potatoes, the tubering characteristics further illuminate why this breed is esteemed among both growers and culinary enthusiasts. From impressive yield potential to resistance against external damage, these characteristics play a pivotal role in shaping the success and popularity of these potatoes. Let’s explore these tubering characteristics in detail:

  1. Yield Potential – Medium to High: The Pentland Javelin boasts a remarkable yield potential that ranges from medium to high, and in some cases, even reaching high levels. This means that growers can anticipate bountiful harvests of these delectable tubers, making them a reliable choice for those who seek a productive crop.
  2. Early Harvest Yield Potential – Low to Medium: When it comes to early harvests, the Pentland Javelin demonstrates a yield potential that falls within the low to medium range. While the initial yield might not be as abundant as in later stages, the subsequent yields are likely to make up for it, adding a dimension of patience and reward for growers.
  3. Tubers per Plant – Many: The Pentland Javelin exhibits an impressive characteristic of producing a high number of tubers per plant. This quality directly contributes to its overall yield potential and makes it a preferred choice for those seeking quantity without compromising on quality.
  4. Tuber Size – Medium, Large to Very Large: The tuber size of this breed is diverse, ranging from small to medium, with some tubers even growing to larger sizes. This variety in sizes offers flexibility for culinary applications, ensuring that there are suitable options for various dishes and cooking methods.
  5. Tuber Shape Uniformity – Medium to Uniform The uniformity of tuber shapes in the Pentland Javelin variety can be classified as medium to uniform or even uniformly consistent. This trait is particularly appealing for commercial growers and processors, as it simplifies sorting and enhances the overall visual appeal of the crop.
  6. Internal Rust Spot – Very Infrequent: The occurrence of internal rust spots in this potato is a rarity. Internal rust spots are areas of discoloration caused by physiological disorders in the tuber. The infrequent presence of these spots contributes to the overall quality and visual appeal of the potatoes.
  7. Resistance to External Damage – Resistant: Pentland Javelin potatoes showcase a commendable resistance to external damage. This resilience protects the tubers during harvesting, transportation, and storage, ensuring that they maintain their pristine appearance and taste.
  8. Dormancy Period – Medium to Long: The dormancy period of its spans from medium to long or even long to very long. Dormancy refers to the period during which the potatoes remain viable for planting after being harvested. This extended dormancy period offers flexibility in planting schedules and storage options.

The robust tubering characteristics of Pentland Javelin potatoes underscore their value in both agricultural and culinary contexts. With a high yield potential and the ability to produce many tubers per plant, these potatoes are a treasure trove for growers aiming to maximize their crop output. The range of tuber sizes, combined with their uniform shape and resistance to external damage, makes them a versatile and dependable choice for culinary applications.

The Pentland Javelin’s resilience against internal rust spots and its prolonged dormancy period contribute to the overall quality and longevity of the crop. These characteristics ensure that the potatoes maintain their premium status from harvest to kitchen.

Culinary Excellence: Utilization Characteristics of Pentland Javelin Potatoes

Beyond their intriguing growth habits and tubering traits, the culinary potential of Pentland Javelin potatoes is another realm to explore. With a focus on cooking types, textures, taste, and suitability for various culinary applications, these utilization characteristics shed light on the diverse ways in which these potatoes can elevate your gastronomic experiences. Let’s delve into the fascinating world of its utilization characteristics:

  1. Cooking Type / Cooked Texture – Fairly Firm (Multi-purpose Type): The Pentland Javelin potatoes fall under the multi-purpose cooking type, offering a fairly firm cooked texture. This unique characteristic makes them versatile for a wide range of culinary creations, from boiling and mashing to baking and frying.
  2. After Cooking Blackening – Trace to Little: After being cooked, these potatoes display minimal tendencies for blackening, with traces to little or even none. This quality contributes to their visual appeal, ensuring that dishes remain vibrant and appetizing.
  3. Taste – Good: The taste of Pentland Javelin potatoes is regarded as good, adding a delightful flavor dimension to your culinary endeavors. This appealing taste makes them a welcomed addition to various dishes.
  4. Crisp Suitability – Poor: Pentland Javelin potatoes might not be the ideal choice for making crisps (potato chips). Their poor crisp suitability is likely due to their multi-purpose cooking type, which prioritizes other culinary applications over chip-making.
  5. French Fry Suitability – Poor: Similarly, these potatoes are not well-suited for French fries. Their poor suitability for this purpose could be attributed to their fairly firm cooked texture and mealy to floury consistency.
  6. Frying Colour – Pale: When used for frying, It tends to develop a pale color. This attribute might make them less preferable for dishes that require a deep golden or crispy exterior after frying.
  7. Dry Matter Content – Low to Medium: Pentland Javelin potatoes exhibit a dry matter content that ranges from low to medium. The dry matter content is a crucial factor in determining the texture and suitability of potatoes for various cooking methods.
  8. Starch Content – Low to Medium, Medium: The starch content of this breed of potatoes falls within the range of low to medium, with some tubers leaning more towards medium. This starch content influences their texture after cooking and their potential uses in different dishes.

The utilization characteristics of Pentland Javelin potatoes provide valuable insights into their versatility in the kitchen. Their fairly firm cooked texture and good taste make them an excellent choice for boiling, mashing, and incorporating into various dishes where their structural integrity is desired.

While their crisp and French fry suitability might be limited, their potential for other culinary applications remains substantial. Their ability to hold their shape and maintain a trace to little blackening after cooking ensures that dishes maintain their visual appeal.

Pentland Javelin Potatoes’ Resistance to Fungal Diseases

A crucial aspect of potato cultivation is their ability to resist fungal diseases, which can have a significant impact on yield and overall crop health. The Pentland Javelin potato variety has been studied for its resistance to various fungal diseases, shedding light on its robustness in facing these challenges. Let’s delve into the resistance levels of these potatoes to key fungal diseases:

  1. Resistance to Late Blight on Tubers – High to Very High: The resistance of Pentland Javelin potatoes to late blight on tubers varies across different strains. It can range from very low to low in some instances, to medium, high, and even high to very high in others. Late blight is a notorious disease caused by the oomycete pathogen Phytophthora infestans and is responsible for significant yield losses in potato crops.
  2. Resistance to Late Blight on Foliage – High to Very High: Similarly, the resistance of these potatoes to late blight on foliage displays a spectrum of levels. This resistance can be categorized as low to medium, medium, high, and high to very high. Resistance to late blight on foliage is crucial for the overall health of the plant and preventing rapid disease spread.
  3. Resistance to Late Blight on Tubers (Laboratory Test) – Low: Laboratory tests indicate that Pentland Javelin potatoes exhibit low resistance to late blight on tubers under controlled conditions. This emphasizes the need for appropriate disease management practices to prevent tuber damage.
  4. Resistance to Late Blight on Foliage (Laboratory Test) – Low: Similar to tuber resistance, laboratory tests suggest that these potatoes have a low resistance to late blight on foliage. This reinforces the importance of implementing effective disease control strategies in fields.
  5. Resistance to Dry Rot (Fusarium coeruleum) – Low: Pentland Javelin potatoes display low resistance to dry rot caused by the fungal pathogen Fusarium coeruleum. Dry rot can lead to rotting and deterioration of tubers during storage.
  6. Wart (Synchytrium endobioticum) – Field Immune, Field Immunity to Wart Races – Race 1: Wart, caused by the pathogen Synchytrium endobioticum, is a disease that affects potato tubers. Pentland Javelin potatoes demonstrate field immunity to warts, providing strong protection against this destructive disease. The immunity specifically extends to wart races, with resistance to Race 1.
  7. Resistance to Gangrene (Phoma foveata) – Medium to High: These potatoes show resistance to gangrene, a disease caused by the fungus Phoma foveata. The resistance levels can range from low to medium and even medium to high, highlighting their capacity to withstand this pathogen to a certain extent.
  8. Resistance to Dry Rot (Fusarium spp.) – Low: Pentland Javelin potatoes exhibit low resistance to dry rot caused by various species of the Fusarium fungus. Managing this disease is crucial to prevent significant losses during storage.

The resistance of Pentland Javelin potatoes to fungal diseases varies across different pathogens. While they display varying levels of resistance to late blight, their field immunity to wart races is a remarkable trait that safeguards against a highly destructive disease. It’s important to note that disease resistance levels can vary based on environmental conditions and local disease pressures.

Understanding the resistance levels of it to various fungal diseases aids growers in implementing effective disease management strategies. Incorporating disease-resistant varieties like Pentland Javelin into crop rotations and employing good agricultural practices can contribute to healthier and more productive potato crops.

Pentland Javelin Potatoes’ Resistance to Bacterial Diseases

In the realm of potato cultivation, the resistance of varieties to bacterial diseases is a key determinant of their overall success. The Pentland Javelin potato, known for its multifaceted characteristics, also displays noteworthy resistance to bacterial diseases. Let’s delve into the levels of resistance exhibited by these potatoes against specific bacterial diseases:

  1. Resistance to Common Scab (Streptomyces scabies) – High: Pentland Javelin potatoes demonstrate a high level of resistance to common scab, a bacterial disease caused by Streptomyces scabies. This resistance is a valuable asset as it helps prevent the unsightly scabbing of tubers, contributing to their visual appeal and market value.
  2. Resistance to Blackleg (Erwinia spp.) – Medium: In terms of resistance to blackleg, a bacterial disease caused by various species of Erwinia, these potatoes exhibit a medium level of resistance. Blackleg can lead to stem and tuber rot, affecting both crop health and yield.

The resistance of Pentland Javelin potatoes to bacterial diseases, particularly common scab, and blackleg, showcases their ability to withstand certain bacterial pathogens. This resistance not only contributes to the health of the plant but also ensures the quality of harvested tubers.

The high resistance to common scabs is particularly valuable, as this disease can cause unsightly scabs on the potato tubers, reducing their marketability. The medium resistance to blackleg is also significant, as blackleg can cause serious damage to plant stems and tubers, affecting both the overall health of the plant and its yield potential.

Pentland Javelin Potatoes’ Resistance to Virus Diseases

In the complex world of potato cultivation, defending against viral diseases is of paramount importance. The Pentland Javelin potato variety, renowned for its impressive traits, also demonstrates resilience against various virus diseases. Let’s delve into the levels of resistance that this breed of potatoes exhibit against specific virus diseases:

  1. Resistance to Potato Virus A – High, Very High: Pentland Javelin potatoes showcases a robust resistance to potato virus A, with both high and very high levels of protection. This resistance acts as a formidable barrier against the intrusion of this particular virus.
  2. Resistance to Potato Virus X – High, Very High: Similarly, the resistance of it to potato virus X is notable, ranging from high to very high levels of resistance. This defense mechanism helps safeguard against the detrimental effects of this virus.
  3. Resistance to Potato Virus Y (Strain Not Specified) – High: Pentland Javelin potatoes exhibit high to very high levels of resistance to potato virus Y, irrespective of the specific strain. This resistance is a testament to their capacity to combat this virus effectively.
  4. Resistance to Potato Leaf Roll Virus – Medium to High: In the case of resistance to potato leaf roll virus, Pentland Javelin potatoes showcase a range of resistance levels. This resistance can be categorized as low to medium to high, highlighting their varying ability to fend off this virus.
  5. Resistance to Tobacco Rattle Virus – Very Low to Low: The resistance of these potatoes to tobacco rattle virus ranges from very low to low. While the resistance might not be as high as in other cases, it still adds a layer of defense against this particular virus.

The resistance of Pentland Javelin potatoes to virus diseases is a critical aspect of their agricultural significance. Their capacity to combat viruses such as potato virus A, potato virus X, and potato virus Y with high to very high resistance levels is a testament to their robust immune system.

While the resistance to the potato leaf roll virus varies, the varying levels of resistance provide insight into the complexity of interactions between the potato plant and the virus. Similarly, the resistance to tobacco rattle virus, although relatively lower, still contributes to the overall defense strategy of the potatoes against viral intruders.

Defying Pests: Pentland Javelin Potatoes’ Resistance to Pests

In the intricate dance of potato cultivation, thwarting the advances of pests is of paramount importance. The Pentland Javelin potato variety, celebrated for its multifaceted attributes, also demonstrates a remarkable resilience against specific pests. Let’s explore the level of resistance that these potatoes exhibit against a particular pest:

  1. Resistance to Globodera rostochiensis Race 1 – High: Pentland Javelin potatoes exhibit robust resistance to the notorious pest Globodera rostochiensis, specifically against Race 1. This resistance showcases the potatoes’ ability to fend off the damaging effects of this pest, which is commonly known as the potato cyst nematode.

The high resistance of Pentland Javelin potatoes to Globodera rostochiensis Race 1 is a testament to their ability to combat one of the most significant pests affecting potato crops. The potato cyst nematode can cause substantial yield losses by damaging the root system and inhibiting nutrient uptake.

The resistance to this pest not only contributes to the overall health and vitality of the potato plant but also plays a crucial role in maintaining optimal yield levels. By reducing the impact of this pest, Pentland Javelin potatoes offer growers a valuable tool for achieving more resilient and productive crops.


The Pentland Javelin potato variety is a testament to nature’s ingenuity and resilience. Its erect growth, elegant white flowers, and versatile tuber traits create a canvas of culinary possibilities. With firm to mealy textures and good taste, these potatoes excel in boiling, mashing, baking, and frying.

Beyond the kitchen, Pentland Javelin’s disease and pest resistance shine. Its high resistance to viral diseases like A, X, and Y, combined with formidable defenses against bacterial diseases and nematode pests, showcases nature’s might.

In a world of challenges, Pentland Javelin emerges as a beacon of excellence, embodying the perfect fusion of strength and flavor. From field to plate, these potatoes remind us that innovation and resilience are the cornerstones of agricultural success.

Data sources


Department of agriculture and forestry UK

Field Crops Research

Plant Pathology

Leibniz Institute of Plant Genetics and Crop Plant Research (IPK)


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