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Cultivation

Silage and Haylage — Sudangrass

Sorghum x drummondii (Steud.) Millsp. & Chase

Harvesting Sudangrass requires strict adherence to growth stages and cutting height to ensure regrowth and minimize the risks of cyanogenic toxicity.

In the reference 65 varieties crop Sudangrass, where this is mentioned in the description.

The maximum nutritional value of Sudangrass is achieved when harvested at the jointing stage or at the beginning of panicle emergence, with plants at a height of about one meter. For haylage, the optimal stage is considered to be budding or early flowering. During harvesting, it is critical to maintain a cutting height of 12–15 cm to preserve tillering nodes, growing points, and ensure rapid regrowth for subsequent cuts.

Due to high succulence, direct harvesting often results in a moisture content exceeding 70%, which necessitates the use of preservatives. For haylage, wilting in windrows to a moisture content of 45–55% using conditioners is recommended. Sudangrass contains cyanogenic glycosides; therefore, the risk of hydrocyanic acid accumulation persists even after ensiling, especially when harvesting young plants after frosts or during drought periods.

Compared to corn, Sudangrass silage is lower in starch content but allows for multiple cuts per season. Brown mid-rib (BMR) hybrids are characterized by lower lignin content, which improves forage digestibility. To balance nutritional value, Sudangrass is often planted in mixtures with legumes.

General information about the subject — on the page Silage and haylage.

Sources8

Varieties of Sudangrass mentioned in the description

Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.

Enorma

Withdrawn

Sorghum x drummondii (Steud.) Millsp. & Chase · Sudangrass

CAL-WEST SEEDS

IT
1 record

Samira

Active

Sorghum x drummondii (Steud.) Millsp. & Chase · Sudangrass

Alfaseed Kft, Budapest

HU
1 record

GW475 BMR

Withdrawn

Sorghum x drummondii (Steud.) Millsp. & Chase · Sudangrass

GAYLAND WARD SEED CO. INC.

IT
1 record

Zoeldoezoen

Terminated

Sorghum x drummondii (Steud.) Millsp. & Chase · Sudangrass

Feczak Janos / Pongracz Sandor / Gombos Tamas / Siklosine Rajki Erzsebet

HU
1 record

Lurabo

Active

Sorghum x drummondii (Steud.) Millsp. & Chase · Sudangrass

Agri Obtentions SA (FR)

FR
1 record

F-800

Withdrawn

Sorghum x drummondii (Steud.) Millsp. & Chase · Sudangrass

FORRATEC ARGENTINA SA

IT
1 record

Sudax ST 6

Terminated

Sorghum x drummondii (Steud.) Millsp. & Chase · Sudangrass

Dekalb Genetics Corporation (usa) (US)

FR
1 record

ADV S6218

Application submitted

Sorghum x drummondii (Steud.) Millsp. & Chase · Sudangrass

Advanta Seed International

IT
1 record

Super Sugar

Application submitted

Sorghum x drummondii (Steud.) Millsp. & Chase · Sudangrass

GAYLAND WARD SEED CO. INC.

IT
1 record

ADV S6525

Application submitted

Sorghum x drummondii (Steud.) Millsp. & Chase · Sudangrass

Advanta Seed International

IT
1 record

Sorghum x drummondii (Steud.) Millsp. & Chase · Sudangrass

GAYLAND WARD SEED CO. INC.

IT
1 record

NS Džin

Active

Sorghum x drummondii (Steud.) Millsp. & Chase · Sudangrass

Institut za ratarstvo i povrtarstvo, Novi Sad, Srbija

SI
1 record

Sweet Six BMR

Application submitted

Sorghum x drummondii (Steud.) Millsp. & Chase · Sudangrass

GAYLAND WARD SEED CO. INC.

IT
1 record

KSH0903

Terminated

Sorghum x drummondii (Steud.) Millsp. & Chase · Sudangrass

KWS SAAT SE & CO.KGAA

IT
1 record

Sammos

Active

Sorghum x drummondii (Steud.) Millsp. & Chase · Sudangrass

1 record

Savana

Protection expired

Sorghum x drummondii (Steud.) Millsp. & Chase · Sudangrass

Zavod za hmelj, sirak i lek. bilje (YU)

SI
1 record

SBS001

Active

Sorghum x drummondii (Steud.) Millsp. & Chase · Sudangrass

1 record

Haygrazer

Terminated

Sorghum x drummondii (Steud.) Millsp. & Chase · Sudangrass

1 record