Promalin® - Plant Growth Regulator

Promalin® Helps Shape Success for Apple Growers.

Promalin® is the worlds leading Biorational Product for the ADVANCED APPLE FRUIT MANAGEMENT FOR MAXIMUM FRUIT QUALITY. It is also considered as the best harvest management tool. Promalin® is known for its multifaceted benefits.

Promalin® is a mixture of naturally occurring plant growth regulators: Gibberellic acid which cause cell enlargement and elongation and 6-Benzyladenine (6-BA) which promotes cell division. These effects only take place in plant tissues and only during the very early development of the fruitlet. The result is a larger fruit with more cells and larger cells.

In addition, the Gibberellins help to improve the overall fruit finish, which makes the fruits look more appealing and marketable, resulting in greater ROI.

Promalin Pack Shot Promalin Tag Line

The Birth Of King Maker

At the top of the list for game-changing opportunities was the unmet need facing the apple industry, particularly production of the world's top-selling variety, Red Delicious, which dominated global apple production in the mid-1970s. These apples are characterized by "typiness," the elongated shape and prominent calyx lobes for which the variety is known. In Red Delicious apples, typiness is the key quality indicator. Consumer preferences dictate that the more "typy" the Red Delicious, the better.

The challenge with Red Delicious was that without cool nights during bloom, typiness (and fruit grade) would lag. Not only did this challenge affect apple production when a typical climatic conditions occurred, but it compromised crop quality in major apple-growing regions such as Asia, South Africa, and Australia, where cold winters and cool nights during bloom were less frequent.

When it was confirmed that Gibberellic acid and the cytokinin 6-Benzyladenine (6-Benzylaminopurine) each had a positive effect on size and typiness, and that the effect was more pronounced when the two compounds were used in combination, developing a new PGR product for Red Delicious producers became a top priority.

The first registration for Promalin® was granted in the U.S. in 1978, and in the ensuing years, Promalin® became widely adopted around the world, changing the game for apple growers in every major apple-producing region.

Developed initially to promote typiness on Red Delicious apples, Promalin® helps to increase fruit size and weight in all apple varieties that proved to be significant for achieving higher ROI to the grower.

Technical Deliverables & Features

  • More and larger cells for Increased Fruit Size.
  • Enhances Fruit Weight.
  • Develop Prominent Calyx Lobes (Typiness).
  • Cell wall elasticity for Improved Fruit Finished.
  • Cell Elongation for Improved Length : Diameter (L:D) ratio.
Technical Deliverables & Features

Promalin® : Benefits

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INCREASE IN SIZE : Promalin® improves length and diameter (L:D) ratio of apples.

Promalin® Benefits Image

FRUIT SHAPE - TYPINESS : Promalin® improves the size of the fruit and its shape (typiness) through the elongation of the fruit and development of more prominent calyx lobes.

Promalin® Benefits Image

FRUIT WEIGHT = HIGHER YIELD : Promalin® increases fruit weight wich leads to higher yield.

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INCREASES PACKOUT : By improving fruit size and shape Promalin® increases Packout.

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BETTER MARKETABLE VALUE : Quality apples with better typiness, weight and elongated fruit fetches good marketable value for grower.

Promalin®: Key Features

Genuine Product by Sumitomo India.

CIB-GOI Approved Product.

Unique Pack with Safety Feature.

Great tool for Superior Quality Apple.

Dosage & Time of Application

Most of the Indian apple varieties Including Red and Royal Delicious are characterized by "Typiness", which is the key quality indicator. Consumer preferences dictate that more the "typy" the Red and Royal Delicious, the better. So for desired benefit, use Promalin® at Full Bloom stage of Apple.


Use Promalin® 1.25 ml per 1 litre of water volume.

Note: Promalin® recommended dosage ranges between 840-1680 ml per hectare in 1000 liters of water.

Caution: 1.25 ml per 1 litre water recommendation is based on our internal trial at farmer fields.

Direction of use:

Always mix 125ml in 100 liters of water only. Don't make stock solutions in small quantity of water.

Application Window:

Use PromalinRat Full Bloom stage of Apple.

Promalin dose and timing

Available Pack Sizes: 1 Litre, 500 ml, 250 ml.

* Read the product leaflet before use
Promalin® Plant Growth Regulator

Promalin® Safety Features

The brand new Promalin® pack comes with 2 safety features to ensure genuine and original Promalin® supply to the growers.

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1. Tamper Proof Cap: Original Promalin® comes with Unique Tamper Proof Cap, that once broken cannot be reused and thus avoids duplicacy.

2. Hologram Strip: Promalin® bottle has Coded Unigram Strip at the bottom of label, which can be read only by specialized lenses which are available at all key shops.

Promalin® Precautions:

  • Good coverage is important: The greatest increase in length to diameter (L:D) ratio of the apples occurs when the calyx on the receptacle surface gets in direct contact with the product.
  • The use of surfactant is not recommended at bloom as it may cause thinning.
  • Promalin® applications made under slow drying conditions (cool to warm temperatures, medium to high relative humidity, and no wind) will increase absorption by the plant, thus optimizing effectiveness. Do not apply Promalin® when air temperatures are below freezing or greater than 32 °C (90°F).
  • Evening or Morning time applications are encouraged when day-time conditions are not conducive to slow drying conditions.
  • For optimum results, have the water pH near neutral (pH 7) and always below pH 8.5.
  • Rainfall within 6 hours after spraying will often reduce the activity of Promalin® Plant Growth Regulator.
  • Mixing guideline: Based on water volume requirement, Take half of the water volume in big Tank/Drum, Pour required quantity of Promalin® directly in tank and then filled the tank with rest of the water. Mix the solution Properly before use.

Anatomy of an Apple Flower

Anatomy of an Apple Flower

Promalin® Results

Promalin Results in apple
Promalin Results in apple
Promalin Results in apple
Promalin Results in apple

Fruit size and shape with Promalin®

Fruit size and shape with Promalin
Fruit size and shape with Promalin
Fruit size and shape with Promalin
Fruit size and shape with Promalin


Farmer Story

"Rome was not built in a day", and neither was Yogesh's orchard. Yogesh Chambyaal, an apple grower from Rampur took over the apple orchard from his father in the year 2000, and started managing it.

Yogesh faced a lot of challenge to find genuine product.

Later he was introduced to Original Promalin® by Sumitomo team member. Yogesh did the trial of Original Promalin® and was delighted to see the results. Yogesh advises his fellow apple growers to use Original Promalin® for effective results. He also warns the growers about the the duplicate products, and urges them to use genuine product.

Yogesh believes that, "Promalin® is the product which will Change The Game"

Promalin Farmer Story

Apple Growers' Experience with Promalin®


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