Effects of 60Co-γ Radiation on Seeds Germination of Orychophragmus violaeeus under NaCl Stress

doi:10.14088/j.cnki.issn0439-8114.2018.15.018

Abstract

Abstract: The effects of ⁶⁰Co-γ ray on the seed germination and early seedling growth ofOrychophragmus violaeeuswere studied using the method of indoor petri dish germination method,and the germination indexes in water and 0.5% NaCl were measured. The results showed that ⁶⁰Co-γ radiation increased the germination rate ofOrychophragmus violaeeusseeds,and decreased the germination potential of seeds in the dose range of 0~300 Gy. Under the condition of water treatment,⁶⁰Co-γ radiation had different effects on the plant height,root length and fresh weight ofOrychophragmus violaeeusseedlings. Under the condition of 0.5% NaCl treatment,⁶⁰Co-γ radiation promoted the plant height and fresh weight ofOrychophragmus violaeeusseedlings,but the growth of root length was promoted at low concentration ⁶⁰Co-γ radiation and inhibted at high concentration ⁶⁰Co-γ radiation.

Key words: Orychophragmus violaeeus, ⁶⁰Co-γ ray, seed germination, growth index

CLC Number:

S681.9

DONG Ya-ru, ZHAO Dong-xiao, CHEN Chuan-jie, SUN Jing-shi, DU Jian-xun. Effects of ⁶⁰Co-γ Radiation on Seeds Germination of Orychophragmus violaeeus under NaCl Stress[J]. HUBEI AGRICULTURAL SCIENCES, 2018, 57(15): 71-73.

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Effects of ⁶⁰Co-γ Radiation on Seeds Germination of Orychophragmus violaeeus under NaCl Stress

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