[1]吴宏琪,谢天悦,杨永森,等.低温弱光对茄子幼苗抗逆性指标的影响[J].福建农林大学学报(自然科学版),2021,50(05):601-610.[doi:10.13323/j.cnki.j.fafu(nat.sci.).2021.05.004]
 WU Hongqi,XIE Tianyue,YANG Yongsen,et al.Effect of low temperature and low light on stress resistance of eggplant seedling[J].,2021,50(05):601-610.[doi:10.13323/j.cnki.j.fafu(nat.sci.).2021.05.004]
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低温弱光对茄子幼苗抗逆性指标的影响()
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福建农林大学学报(自然科学版)[ISSN:1671-5470/CN:35-1255/S]

卷:
50卷
期数:
2021年05期
页码:
601-610
栏目:
出版日期:
2021-09-25

文章信息/Info

Title:
Effect of low temperature and low light on stress resistance of eggplant seedling
文章编号:
1671-5470(2021)05-0601-10
作者:
吴宏琪 谢天悦 杨永森 林碧英 申宝营 陈玲玲 雄伟任
(福建农林大学园艺学院,福建 福州 350002)
Author(s):
WU Hongqi XIE Tianyue YANG Yongsen LIN Biying SHEN Baoying CHEN Lingling XIONG Weiren
(College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China)
关键词:
茄子 低温 弱光 低温弱光 抗逆性指标
Keywords:
eggplant low temperature low light low temperature and low light resistance index
分类号:
S641.1
DOI:
10.13323/j.cnki.j.fafu(nat.sci.).2021.05.004
文献标志码:
A
摘要:
以茄子幼苗为试材,研究低温、弱光、低温弱光胁迫对茄子幼苗抗逆性指标的影响.结果表明:在低温、弱光、低温弱光胁迫处理后,茄子幼苗的根长、根表面积、光下最大荧光产量、光实际化学量子效率、光化学淬灭系数、叶绿素含量与CK相比呈下降趋势; 叶表面积、可溶性糖含量、可溶性蛋白含量、丙二醛含量、电导率与CK相比呈上升趋势.隶属函数综合评价表明,除昼夜温度为15 ℃/10 ℃,光照强度为120 μmol·m-2·s-1的低温弱光胁迫外,其他低温弱光互作对茄子幼苗的胁迫程度均小于各单因素胁迫处理,其中以低温单因素胁迫对幼苗的伤害最大.综上,在低温、弱光、低温弱光胁迫下,茄子幼苗的生长、光合和生理特性均受到影响,表明在设施栽培中,出现低温天气时可通过降低光照强度来缓解伤害.开放科学(资源服务)
Abstract:
Eggplant seedlings were subject to low temperature, low light intensity and composite low temperature and low light stresses, and physiological changes, including photosynthetic characteristics were monitored to evaluate the stress resistance of eggplant seedlings. The results showed that root length, root surface area, maximum fluorescence under light, actual chemical quantum efficiency of light, photochemical quenching coefficient and chlorophyll content of eggplant seedlings showed various downward trends compared with CK after low temperature and low light conditions. While leaf surface area, soluble sugar content, soluble protein content, malondialdehyde content and electrical conductivity maintained different uprising trends compared with CK. According to comprehensive evaluation of membership function, except for composite low temperature(15 ℃ day/10 ℃ night)and low light(120 μmol·m-2·s-1)stress, the adverse impacts of the composite stress were less severe than that of either single stress. And eggplant seedlings were worst hit under single low temperature condition. Therefore, the growth, photosynthesis and physiological characteristics were all impaired under single and composite low light and low temperature stress. Under low temperature condition, light intensity is recommended to be reduced to alleviate the damage arisen from low temperature.

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备注/Memo

备注/Memo:
收稿日期:2020-10-28 修回日期:2021-02-03 基金项目:福建省科技厅重大专项(2018NZ0002-2); 福建省教育厅中青年教师教育科研项目(JAT170161); 福建农林大学科技创新项目(CXZX2017534、CXZX2016123). 作者简介:吴宏琪(1994-),女.研究方向:蔬菜栽培与生理.Email:651586910@qq.com.通信作者林碧英(1963-),女,教授.研究方向:蔬菜种质创新、蔬菜栽培与生理、设施园艺.Email:546340436@qq.com.
更新日期/Last Update: 1900-01-01