Breeding and propagation method of sterile line novel variety of flue-cured tobacco

• Main Authors: WANG JUN, WEN MINGXIA, ZHU ZHONGBIN, JIANG WEI, ZHANG CHANGHUA
• Format: Patent
• Language: English
• Published: 16.12.2015
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; FISHING; FORESTRY; HUMAN NECESSITIES; HUNTING; NEW PLANTS OR PROCESSES FOR OBTAINING THEM; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES; TRAPPING

The invention discloses a breeding and propagation method of a sterile line novel variety of flue-cured tobacco. The method comprises the steps that a cytoplasmic male sterile line MSG28 of the flue-cured tobacco serves as a source of cytoplasm sterile genes, MSG28 serves as a female parent, a variety, Zun-tobacco No. 6, serves as a recurrent parent, after hybridization is conducted, backcross is continuously conducted for six generations and a novel cytoplasmic male sterile line MSZun-tobacco No. 6 is obtained through cultivation; the sterile line MSZun-tobacco No. 6 serves as a female parent, a maintainer line Zun-tobacco No. 6 serves as a male parent, outbreeding is conducted, and the sterile line MSZun-tobacco No. 6 is preserved. The flue-cured tobacco sterile line MSZun-tobacco No. 6 bred through the method has the advantages of being stable in sterility, excellent in agronomic trait, high in yield and output value, high in comprehensive resistance, good in appearance and internal quality of tobacco leaves, coordinated in chemical composition and the like, and novel excellent sterile line germplasm is provided for heterosis utilization research work of the flue-cured tobacco.