NaCl处理对半高丛蓝莓的生长发育及光合特性的影响

doi:10.19303/j.issn.1008-0384.2019.05.005

福建农业学报 ›› 2019, Vol. 34 ›› Issue (5): 534-543.doi: 10.19303/j.issn.1008-0384.2019.05.005

• 园艺科学 • 上一篇

NaCl处理对半高丛蓝莓的生长发育及光合特性的影响

张晓婷^1,2, 韦建辰^1,2, 徐振彪^3,4, 王颖^1,2, 吴林^1,4

1. 吉林农业大学园艺学院, 吉林长春 130118;
2. 吉林省蓝莓研究中心, 吉林长春 130021;
3. 山东理工大学生命科学学院, 山东淄博 255049;
4. 淄博普蓝农业科技有限公司, 山东淄博 256300

收稿日期:2019-03-12 修回日期:2019-04-30 发布日期:2019-08-01
通讯作者: 吴林(1970-),男,硕士,教授,研究方向:蓝莓等小浆果品种选育、栽培生理和产业经济等全产业链技术(E-mail:310710966@qq.com) E-mail:310710966@qq.com
作者简介:张晓婷(1993-),女,硕士研究生,研究方向:果树生理生态及栽培技术(E-mail:937571500@qq.com)
基金资助:
吉林省教育科学“十三五”规划（GH170250）；淄博市科学技术发展计划项目（2017kj080008）；淄博市校城融合发展计划项目（2018ZBXC040）

Effects of NaCl on Growth and Photosynthesis of Semi-dwarf Blueberry Bushes

ZHANG Xiao-ting^1,2, WEI Jian-chen^1,2, XU Zhen-biao^3,4, WANG Ying^1,2, WU Lin^1,4

1. College of Horticulture, Jilin Agricultural University, Changchun, Jilin 130118, China;
2. Jilin Blueberry Research Center, Changchun, Jilin 130021, China;
3. College of Life Sciences, Shandong University of Technology, Zibo, Shandong 255049, China;
4. Zibo Pulan Agricultural Technology Co. Ltd., Zibo, Shandong 256300, China

Received:2019-03-12 Revised:2019-04-30 Published:2019-08-01

摘要/Abstract

摘要： [目的]鉴定半高丛蓝莓的耐盐性和耐盐范围，为盐碱地区的蓝莓引种、栽培提供理论依据。[方法]采用盆栽加盐的方式进行人工模拟盐胁迫环境，研究不同浓度[0（CK）、30、60、90、120、150、180、210 mmol·L^-1]NaCl处理50 d对2年生半高丛蓝莓品种北陆（Northland）的生物学特性、生理生化指标、光合作用以及其净光合速率（Pn）、蒸腾速率（Tr）、胞间二氧化碳浓度（Ci）和气孔导度（Gs）等光响应的影响。[结果]（1）30、60、90 mmol·L^-1NaCl处理对蓝莓生长发育有促进作用；120 mmol·L^-1NaCl处理下蓝莓促进作用解除，生长势与CK相近；150、180 mmol·L^-1NaCl处理下蓝莓促进作用解除；210 mmol·L^-1NaCl为半高丛蓝莓的耐盐存活临界浓度，导致植株死亡；（2）在NaCl浓度≤90 mmol·L^-1时，蓝莓植株生长状况优于CK，株高、冠幅增加，地上部、地下部干鲜重增加；蓝莓叶片可溶性糖含量增加，脯氨酸（Pro）含量增加，超氧化物歧化酶（SOD）活性增加，细胞膜相对透性增大，丙二醛（MDA）含量升高；（3）各处理下蓝莓植株Pn、Tr、Gs的日变化曲线呈上升趋势，Ci呈下降趋势，Pn、Tr、Ci的光响应曲线呈上升趋势，Gs呈下降趋势，以60 mmol·L^-1NaCl处理最为显著。[结论]半高丛蓝莓具有一定的耐盐性，耐NaCl范围为0～180 mmol·L^-1；盐碱地区土壤含盐量低于90 mmol·L^-1时，可以考虑选择蓝莓品种北陆种植。

关键词: 蓝莓, NaCl处理, 生物学特性, 生理生化指标, 光合特性

Abstract: [Objective] Salt tolerance of blueberry plants were studied for possible cultivation in saline-alkali lands.[Method] A pot experiment was conducted using varied salt additions[0(CK), 30, 60, 90, 120, 150, 180, and 210 mmol·L^-1)] NaCl in a medium to artificially simulate the environmental stress. Two-year-old seedlings of semi-dwarf Vaccinium Northland blueberry were treated under the stress for 50d. Effects on the physiological and biochemical properties, as well as the photosynthesis, net photosynthetic rate (Pn), transpiration rate (Tr), intercellular CO₂concentration (Ci), and stomatal conductance (Gs), were determined.[Result](1) A salt concentration at 30, 60 or 90 mmol·L^-1 promoted the seedling growth, but the enhancing effect disappeared when it reached 120 mmol·L^-1, where the result became similar to CK. Further increase to 150 or 180 mmol·L^-1 inhibited the seedling growth. At 210 mmol·L^-1, a threshold that caused plant death was observed. (2) When the salt concentration was less or equal to 90 mmol·L^-1, the blueberry seedlings grew better than CK with increased plant height, crown width, dry and fresh weights of shoots, and soluble sugar content in leaves. The biochemical indices, such as Pro, superoxide dismutase (SOD) activity, relative permeability of cell membrane, and malondialdehyde (MDA) content, were elevated as well. (3) The daily variations on Pn, Tr and Gs of the treated plants were on an upward trend, but Ci downward. The responses of Pn, Tr and Ci to light exposure showed an upward trend, while that of Gs downward. These effects were most significant under 60 mmol·L^-1 NaCl.[Conclusion]The semi-dwarf blueberry bushes exhibited a significant salt tolerance within 0-180 mmol·L^-1. Northland blueberry was conceivably a variety that could be cultivated on soil that has a salt content below 90 mmol·L^-1.

Key words: blueberry, NaCl tolerance, botanical property, physiological and biochemical indices, photosynthesis

中图分类号:

S663

张晓婷, 韦建辰, 徐振彪, 王颖, 吴林. NaCl处理对半高丛蓝莓的生长发育及光合特性的影响[J]. 福建农业学报, 2019, 34(5): 534-543.

ZHANG Xiao-ting, WEI Jian-chen, XU Zhen-biao, WANG Ying, WU Lin. Effects of NaCl on Growth and Photosynthesis of Semi-dwarf Blueberry Bushes[J]. Fujian Journal of Agricultural Sciences, 2019, 34(5): 534-543.

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NaCl处理对半高丛蓝莓的生长发育及光合特性的影响

Effects of NaCl on Growth and Photosynthesis of Semi-dwarf Blueberry Bushes

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