摘要
After 1/3 of spike and whole spike being removed at flowering stage, some physiological and biochemical indices of rice leaf senescence and membrane lipid peroxidation were determined. The results indicated that: Removing both 1/3 of spike and whole spike significantly delayed rice leaf senescence as indicated by higher chlorophyll and protein levels just after manipulative treatments, however, the membrane lipid peroxidation level decreased as indicated by lower malondialdehyde (MDA) content only after 7 days from manipulative treatments,the activity of superoxide dismutase (SOD) changed very little after treatments. The above results indicated that the membrane lipid peroxidation was not the primary cause of leaf senescence in rice at the grain development stage.
After 1/3 of spike and whole spike being removed at flowering stage, some physiological and biochemical indices of rice leaf senescence and membrane lipid peroxidation were determined. The results indicated that: Removing both 1/3 of spike and whole spike significantly delayed rice leaf senescence as indicated by higher chlorophyll and protein levels just after manipulative treatments, however, the membrane lipid peroxidation level decreased as indicated by lower malondialdehyde (MDA) content only after 7 days from manipulative treatments,the activity of superoxide dismutase (SOD) changed very little after treatments. The above results indicated that the membrane lipid peroxidation was not the primary cause of leaf senescence in rice at the grain development stage.
出处
《中国水稻科学》
CAS
CSCD
北大核心
1997年第3期190-192,共3页
Chinese Journal of Rice Science
