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Variety traits

Cotton Maturity Group

Gossypium hirsutum L.

The cotton maturity group is determined by the duration of the growing period from emergence to the opening of 50% of the bolls. This indicator is a critical factor limiting the feasibility of cultivating a variety depending on the heat resources of a region.

In the reference 126 varieties crop Upland cotton, where this is mentioned in the description.

To assess the cotton maturity group, the number of days from emergence to biological maturity, defined by the opening of half the bolls on the plant, is used. Early-maturing varieties have a growing period of 105–120 days, whereas mid-maturing varieties are characterized by a period of 125 to 140 days or more.

The choice of maturity group directly affects cultivation technology, as the formation of a large boll requires at least 60 days after flowering. A mismatch between the variety and climatic conditions leads to an extended growing season, reduced fiber quality, and the inability to perform full mechanized harvesting.

In modern breeding, the priority is the creation of intensive early-maturing varieties, including forms with the mutant "null-type" branching trait. These varieties allow for avoidance of unfavorable autumn conditions and pests, while maintaining an acceptable level of yield and fiber turnout.

General information about the subject — on the page Maturity group.

Sources8

Varieties of Upland cotton 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.

ST 468

Active

Gossypium hirsutum L. · Upland cotton

STONEVILLE PEDIGREED SEED COMPANY

ES GR
11 records

DP 565

Active

Gossypium hirsutum L. · Upland cotton

Larry Burdett.

ES
6 records

Sure Grow 501

Protection expired

Gossypium hirsutum L. · Upland cotton

Sure Grow Seed Inc.

GR
5 records

ST 373

Active

Gossypium hirsutum L. · Upland cotton

STONEVILLE PEDIGREED SEED COMPANY

GR
6 records

Celia

Active

Gossypium hirsutum L. · Upland cotton

COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANIZATION (CSIRO) PLANT INDUSTRY

ES GR
9 records

Juncal

Active

Gossypium hirsutum L. · Upland cotton

CALIFORNIA PLANTING COTTON SEED DISTRIBUTORS

ES GR
7 records

ST 830

Active

Gossypium hirsutum L. · Upland cotton

BASF AGRICULTURAL SOLUTIONS US LLC

ES GR UA
8 records

Armonia

Active

Gossypium hirsutum L. · Upland cotton

House of Agriculture Spirou S.A.

BG GR
5 records

Fantom

Active

Gossypium hirsutum L. · Upland cotton

GOLDEN WEST SEED RESEARCH Co.

GR
6 records

Roka

Active

Gossypium hirsutum L. · Upland cotton

CSIRO COTTON RESEARCH UNIT

ES GR
6 records

Elpida

Active

Gossypium hirsutum L. · Upland cotton

House of Agriculture Spirou S.A.

GR
4 records

Fiona

Active

Gossypium hirsutum L. · Upland cotton

Bayer CropScience LP^^^Cotton Seed International Pty Ltd.

GR
5 records

Filia

Active

Gossypium hirsutum L. · Upland cotton

MONSANTO TECHNOLOGY

ES
4 records

Balaika

Active

Gossypium hirsutum L. · Upland cotton

MONSANTO TECHNOLOGY

ES GR
6 records

DP 388

Active

Gossypium hirsutum L. · Upland cotton

MONSANTO TECHNOLOGY

ES
4 records

DP 428 B

Active

Gossypium hirsutum L. · Upland cotton

MONSANTO TECHNOLOGY

ES
7 records

Gossypium hirsutum L. · Upland cotton

DELTA&PINE LAND HOLDING

ES GR
9 records

DP 5409

Active

Gossypium hirsutum L. · Upland cotton

Delta and Pine Land Company

ES
4 records

DP 5415 RR

Protection expired

Gossypium hirsutum L. · Upland cotton

William V. Hugie.

ES
3 records

Gossypium hirsutum L. · Upland cotton

Ellis Brothers Seed, Inc.

ES
3 records

Sure Grow 125

Protection expired

Gossypium hirsutum L. · Upland cotton

Sure Grow Seed Inc.

GR
4 records

ST 402

Active

Gossypium hirsutum L. · Upland cotton

EMERGENT GENETICS INC

ES GR
4 records

MAY 509

Active

Gossypium hirsutum L. · Upland cotton

May-Agro Tohumculuk Sanayi ve Ticaret A.Ş.

ES
4 records

PHY 48

Active

Gossypium hirsutum L. · Upland cotton

PHYTOGEN-DOW AGROSCIENCES

ES GR
3 records