Journal of Northern Agriculture ›› 2021, Vol. 49 ›› Issue (6): 15-21.doi: 10.12190/j.issn.2096-1197.2021.06.02

• Crop genetic breeding·Germplasm resources • Previous Articles     Next Articles

Optimization and analysis of ethyl methane sulfonate mutagensis system in sunflower seeds

GUO Shuchun1,2, MIAO Hongmei1, ZHANG Yanfang3, YU Haifeng2, NIE Hui2, SHAO Ying2, QIAO Huilei2, MU Yingnan2, LIANG Chen2, LI Suping2   

  1. 1. Sesame Research Center,Henan Academy of Agricultural Sciences,Zhengzhou 450002,China;
    2. Institute of Crop Science,Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences,Hohhot 010031,China;
    3. College of Horticulture and Plant Protection,Inner Mongolia Agricultural University,Hohhot 010011,China
  • Received:2021-08-12 Online:2021-12-20 Published:2022-02-09

Abstract: 【Objective】To determine the optimal ethyl methane sulfonate(EMS)mutagensis concentration and treatment time frame in sunflower seeds.【Methods】Using oil-seed sunflower JK103,S18 and edible sunflower Bakui 138 and Keyang No.7 as test materials,the germination potential,germination rate,and relative germination rate of sunflower seeds were analyzed under EMS treatment with gradient concentration(0,0.1%,0.5%,1.0%,1.5%,2.0%)and three treatment time span(6,12,24 h)to determine the optimal conditions.【Results】The germination potential and germination rate of sunflower seeds were affected by the EMS solution concentration and mutagenic time. Sunflower seeds,especially oil-seed was quite tolerant to EMS. In the later stages of mutagensis,edible seeds became more sensitive to EMS as the treatment duration increases. The optimal mutagenic conditions of sunflower EMS treatment varied depending on the variety.【Conclusion】According to the principle of semi-lethal condition,the optimal concentration and treatment time are,for oil-seed,48 h after germination treated with 1.0%-1.5% EMS solution for 12-24 h,for edible-seed,48-72 h after germination treated with 1.0%-1.5% EMS solution for 6-12 h.

Key words: Sunflower, Seed, EMS mutagensis, Germination potential, Germination rate

CLC Number: 

  • Q9