花生学报Issue(2)：18-23,6.DOI:10.14001/j.issn.1002-4093.2015.02.004
高温胁迫对不同花生品种生理指标的影响
Effects of High Temperature Stress on Physiological Indexes of Different Peanut Varieties
摘要
Abstract
To study the toleration of different peanut cultivars to high temperature stress, Yu-hua971 9 (sensitive to high temperature) and Jihua4 (tolerant to high temperature) were used as trial material.After the treatment of 45℃ for 1 6 days in seedling stage, the metabolism related indicators such as biomass, photosynthesis and reactive oxygen species (ROS) were measured.The results showed that: (1) By comparing with control group, high temperature treatment made the plant height and dry weight of both cultivars decreased, the plant height of Yuhua9719 and Jihua4 reduced by 37.95%and 37.04%, the dry weight of Jihua4 reduced 21.17% while Yuhua971 9 unchanged .(2) By compa-ring with the control, Fv /Fm of Jihua4 reduced 1.71% and Yuhua971 9 unaffected.The high temper-ature made the water content and chlorophyll of Yuhua971 9 increased 0.78% and 33.89% respective-ly.The carotenoids content of the two varieties decreased by 1 1.14% and 13.06% respectively, and the soluble protein content of the two varieties increased by 54.04% and 70.25% respectively.(3) After the high temperature treatment, MDA content of Yuhua971 9 and Jihua4 increased by 39.30%and 36.30% respectively, SOD activities increased by 28.82% and 30.84% respectively, but the CAT activities unchanged.Free proline content of Yuhua971 9 increased 81 1.23%.It showed that, the in-crease of free proline content in Yuhua971 9 effectively maintained the water content in leaf tissues and reduced the damage to PSII.This might be the Yuhua971 9's beneficial physiological responses to the high temperature.关键词
高温胁迫/花生/生理指标Key words
high temperature stress/peanut/physiological index分类
农业科技引用本文复制引用
张晓晶,鹿捷,郑永美,罗盛,吴正锋,王才斌,张文会..高温胁迫对不同花生品种生理指标的影响[J].花生学报,2015,(2):18-23,6.基金项目
青岛市民生计划(13-1-3-82-nsh) （13-1-3-82-nsh）
山东省自然基金(ZR2014CL009,2009ZRB01762) （ZR2014CL009,2009ZRB01762）
大学生科技创新项目(SF2013289) （SF2013289）
山东省现代农业产业技术体系项目(SDAIT-05-021-04) （SDAIT-05-021-04）
山东省重大应用技术创新(不同类型花生田耕地质量提升关键技术研究与示范)和山东省农业科学院科技创新重点项目(2014CXZ06-2 （不同类型花生田耕地质量提升关键技术研究与示范）
2014CXZ11-2) （）
