公开(公告)号：US20240008437A1

公开(公告)日：2024-01-11

申请号：US18218131

申请日：2023-07-05

Applicant: HENAN INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Qinglian WANG

IPC: A01H6/60 ,  A01H1/02

CPC classification number: A01H6/604 ,  A01H1/02

Abstract: A long-staple cotton variety allowing spinning 150 N to 340 N combed cotton yarns, and a breeding method thereof are provided. In the present disclosure, through a “radiation mutagenesis of Gossypium barbadense (G. barbadense) L.+distant crossing of Chinese G. barbadense L. and Egyptian G. barbadense L. with upland cotton+backcrossing+G. barbadense L. and upland cotton introgression+stepped composite crossing” technology, four excellent parents are subjected to convergent crossing to obtain a long-staple cotton variety. During the selective breeding, through “radiation mutagenesis-screening-distant crossing-backcrossing-selfing-screening-crossing-screening” and “southern breeding+northern breeding”, a large number of excellent genes are combined and aggregated; and through distant crossing of G. barbadense L. and upland cotton, backcrossing, and G. barbadense L. and upland cotton introgression, cell nuclei of G. barbadense L. effectively interact with cytoplasm of upland cotton.

公开(公告)号：US20240008438A1

公开(公告)日：2024-01-11

申请号：US18218611

申请日：2023-07-06

Applicant: HENAN INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Qinglian WANG

IPC: A01H6/60 ,  A01H5/10

CPC classification number: A01H6/604 ,  A01H5/10

Abstract: A superior long-staple cotton variety allowing spinning 360 N ultra-fine and high-grade combed yarns, and a breeding method thereof are provided. The breeding method includes: conducting distant crossing with Gossypium barbadense (G. barbadense) L. BMC 1563 as a female parent and Xinluzhong 14 as a male parent; conducting backcrossing with an F1 hybrid as a female parent and BMC1563 as a male parent for three generations; harvesting hybrid seeds of first-generation backcrossing together; harvesting hybrid seeds of second-generation backcrossing separately, and screening; harvesting hybrid seeds of third-generation backcrossing, and screening to obtain an individual BC3F1; selling the individual BC3F1 for 5 generations to obtain BMC18394; and crossing Xinhai 40 as a female parent with the BMC 18394 as a male parent to obtain a first-generation hybrid, and conducting sealing-flower setting for 6 generations to finally obtain a long-staple cotton variety BMC79.