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- Title
Waterlogging effect and evaluation method on waterlogging tolerance of germinated sesame.
- Authors
WANG Lin-hai; ZHANG Yan-xin; LI Dong-hua; ZHANG Xiao-yan; LV Hai-xia; WEI Wen-liang; SUN Jian; ZHANG Xiu-rong
- Abstract
Sesame germination was investigated to evaluate waterlogging effect. Sesame seeds were immersed under water for 3h to 24h before germination for 5d. Seeds germination was obviously affected with high electric conductivity, death rate and short root length but low simple vigor index. Abnormal seeding rate increased first and then decreased. The sensitive period of sesame to waterlogging was 6h to 12h when survivor rate and simple vigor index decreased sharply. Subsequently, 3 1 high - generation lines were studied under waterlogging for 7h, 9h and 12h. Coefficient of variation among waterlogging resistance index showed great differences at 9h treatment, and relative survivor rate was a main evaluation index for its strong correlations with other indices. At last, 222 sesame materials were evaluated at 9h waterlogging according to their relative survivor rate. Among them, 70 materials were extremely sensitive to waterlogging stress, 69 were sensitive, 43 were intermediate, 28 were tolerant, and 12 were highly tolerant, including ZZM1501, ZZM2113, ZZM2147, ZZM2208, ZZM3342, ZZM3379, ZZM3410, ZZM4780, ZZM4781, 09 - P65, Liaopinzhi 3 and Luozhi 15.
- Subjects
SESAME; WATERLOGGING (Soils); SEED stratification; PLANT vitality; ELECTRIC conductivity
- Publication
Chinese Journal of Oil Crop Sciences, 2011, Vol 33, Issue 6, p588
- ISSN
1007-9084
- Publication type
Article