Germination characteristics associated with nicosulfuron resistance in Amaranthus retroflexus L.
文献类型： 外文期刊
作者： Zhang, Yingying 1 ; Xu, Xian 1 ; Zhao, Bochui 1 ; Li, Binghua 1 ; Qi, Zhizun 1 ; Wang, Yu 3 ; Wang, Guiqi 1 ; Li, Yaofa 4 ; Huang, Zhaofeng 5 ; Liu, Xiaomin 1 ;
作者机构： 1.Hebei Acad Agr & Forestry Sci, Inst Cereal & Oil Crops, Key Lab Crop Cultivat Physiol & Green Prod Hebei P, Shijiazhuang, Peoples R China
2.Hebei Univ, Coll Life Sci, Baoding, Peoples R China
3.Heilongjiang Acad Agr Sci, Inst plant protect, Harbin, Peoples R China
4.Hebei Acad Agr & Forestry Sci, Plant Protect Inst, Baoding, Peoples R China
5.Chinese Acad Agr Sci, Inst Plant Protect, State Key Lab Biol Plant Dis & Insect Pests, Beijing, Peoples R China
期刊名称：PLOS ONE （ 影响因子：2.6； 五年影响因子：3.2 ）
ISSN： 1932-6203
年卷期： 2024 年 19 卷 8 期
页码：
收录情况： SCI
摘要： Nicosulfuron-resistant biotype (R) and -sensitive biotype (S) Amaranthus retroflexus L. seeds were subjected to different temperature, light, salt, osmotic potential, pH value and burial depth treatments. The difference in germination response of two populations to the above abiotic environmental factors was used to study the fitness cost of nicosulfuron-resistance evolution in A. retroflexus. The aim is to find a powerful tool for weed control in the presence of evolutionary resistance selection. The results of this experiment showed that the germination rate and germination index in S population were generally higher than that in R population. When the salt stress was 80 mM, the water potential was -0.1 Mpa similar to -0.4 Mpa, and under strong acid and alkali conditions, the germination index in S population was prominently higher than that in R population (p<0.05). The delayed seed germination in R population indicated that its nicosulfuron resistance may be linked to seed biochemical compositions that altered seed germination dynamics. The resistant and sensitive biotype of A. retroflexus had differently favourable adaptability in diverse environments. Salt, osmotic potential and pH value are not the major constraints for A. retroflexus germination, however, A. retroflexus are strongly responsive to temperature, light and burial depth. Considering that seeds of A. retroflexus are unable to reach the soil surface beyond the depth of 6 cm, deep inversion tillage before sowing may be an effective and economical weed management tool for the control of nicosulfuron resistant A. retroflexus.
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