Variety traits
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.
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.
Gossypium hirsutum L. · Upland cotton
Ana Stoilova Saldzhieva, Ivan Hristov Saldzhiev
Gossypium hirsutum L. · Upland cotton
F. BOURLAND
Gossypium hirsutum L. · Upland cotton
BIOS AGROSYSTEMS ABEE
Gossypium hirsutum L. · Upland cotton
HAO-DEMETER Cotton and Industrial Crops Institute
Gossypium hirsutum L. · Upland cotton
Agrotikos Oikos Spyrou AEBE
Gossypium hirsutum L. · Upland cotton
STONEVILLE PED. SEED CO.
Gossypium hirsutum L. · Upland cotton
Valentina Dimitrova, Ana Saldzhieva
Gossypium hirsutum L. · Upland cotton
Valentina Dimitrova, Spasimira Nqdyalkova
Gossypium hirsutum L. · Upland cotton
DELTA&PINE LAND HOLDING
Gossypium hirsutum L. · Upland cotton
CALIFORNIA PLANTING COTTON SEED DISTRIBUTORS
Gossypium hirsutum L. · Upland cotton
Ana Stoilova Saldzhieva, Ivan Hristov Saldzhiev
Gossypium hirsutum L. · Upland cotton
GERMAIN'S COTTON SEEDS
Gossypium hirsutum L. · Upland cotton
HAO-DEMETER Cotton and Industrial Crops Institute
Gossypium hirsutum L. · Upland cotton
HAO-DEMETER Cotton and Industrial Crops Institute
Gossypium hirsutum L. · Upland cotton
EUROSEMILLAS
Gossypium hirsutum L. · Upland cotton
THE STATE OF ISRAEL-MINISTRY OF AGRICULTURE AND RURAL DEVELOPMENT-AGRICULTURAL RESEARCH ORGANIZATION( ARO)
Gossypium hirsutum L. · Upland cotton
INIA-OTRI
Gossypium hirsutum L. · Upland cotton
HAO-DEMETER Cotton and Industrial Crops Institute
Gossypium hirsutum L. · Upland cotton
DPL TECHNOLOGY HOLDING CO
Gossypium hirsutum L. · Upland cotton
Geoponiko Spiti - Lokas SMLLC (GR)
Gossypium hirsutum L. · Upland cotton
ALFA SEEDS ABEE
Gossypium hirsutum L. · Upland cotton
BIOS AGROSYSTEMS ABEE
Gossypium hirsutum L. · Upland cotton
STONEVILLE PED. SEED CO.
Gossypium hirsutum L. · Upland cotton
SEMILLAS SOSTENIBLES IBERICA, S.L.