中国农学通报2025，Vol.41Issue(16)：1-8,8.
低温胁迫后甘蔗新品种的光合变化及其抗寒性分析
Photosynthetic Variation and Cold Resistance in New Sugarcane Varieties Exposed to Chilling Stress
摘要
Abstract
To evaluate the cold resistance of newly released'Zhongzhe'(ZZ)cultivars('ZZ 9','ZZ 14','ZG 1'and'ZZFN 14-1854'),measurements were taken on sugarcane,and the physiological indices of leaves were analyzed following exposure to low temperatures.The results indicated that significant differences existed in the photosynthetic physiological indices of the four sugarcane varieties after low-temperature chilling.'ZZ 14'exhibited relatively higher values in multiple parameters,namely Fv/Fm,Fv/Fo,net photosynthetic rate,photosynthetic pigment content,SPAD values(chlorophyll content),anthocyanin content,and superoxide dismutase(SOD)activity.In contrast,'ZG 1'manifested lower values across these indicators,implying weaker cold tolerance.The other two cultivars demonstrated intermediate performance.It is indicated that'ZZ 14'improves its cold resistance by increasing anthocyanin levels and SOD activity,thereby exhibiting superior cold tolerance.Conversely,'ZG 1'presents relatively inferior cold resistance.The ranking of the cold resistance of the varieties from highest to lowest was'ZZ 14'>'ZZ 9'>'ZZFN 14-1854'>'ZG 1'.关键词
甘蔗/抗寒性/光合作用/荧光参数/叶绿素/花青素/SOD活性/主成分分析Key words
sugarcane/cold resistance/photosynthesis/fluorescence parameter/chlorophyll/anthocyanin/SOD activity/principal component analysis分类
农业科技引用本文复制引用
李火建,许誉芝,陈珺,张池,伍玉玲,魏乙斌,姜春秀,曾力方,张木清..低温胁迫后甘蔗新品种的光合变化及其抗寒性分析[J].中国农学通报,2025,41(16):1-8,8.基金项目
财政部和农业农村部项目"国家糖料产业技术体系甘蔗抗病品种选育岗位"(CARS170109) （CARS170109）
广西科技重点项目"甘蔗抗病亲本评价与品种选育"(Guike AA22117001). （Guike AA22117001）
