|Table of Contents|

Effect of Salt Stress on Physiological Characteristics of Organic Tomato of Germination and Seedling(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2015年11
Page:
23-27
Research Field:
Publishing date:

Info

Title:
Effect of Salt Stress on Physiological Characteristics of Organic Tomato of Germination and Seedling
Author(s):
LIU Dan; HU Bao-zhong; XU Yong-qing; LI Feng-lan; LI Fei; ZHOU Jing; CAI Zhen-xue; WANG Ming-jing; WANG Xu
Life Science College，Northeast Agricultural University，Harbin，Heilongjiang 150030
Keywords:
organic tomato; NaCl stress; germination stage; seedling stage
PACS:
S 641.2
DOI:
10.11937/bfyy.201511006
Abstract:
Taking organic tomato variety‘Miaohong’ and control variety of ‘Jiaren’ as materials，germination of NaCl solution set to 0，30，60，90，120 mmol/L and seeding of NaCl solution set to 0，50，100，150，200 mmol/L，the effect of different concentrations of NaCl solution on the physiological characteristics of germination and seedling stages of ‘Miaohong’ and ‘Jiaren’ were studied.The results showed that，at the seed germination stage，germination rate and overground fresh weight ‘Miaohong’ was not significantly different with control under the concentration of NaCl solution of 30 mmol/L，under the concentration of NaCl solution of 30-120 mmol/L，‘Miaohong’ and ‘Jiaren’ of the germination percentage,germination energy，overground fresh weight and underground fresh weight were significantly lower(P＜0.05).In seedling stage，‘Miaohong’ and ‘Jiaren’ of superoxide dismutase(SOD)activity，peroxidase (POD)activity，catalase(CAT)activity，malondialdehyde(MDA)content were positively correlated with the concentration of the salt concentration.Under the concentration of NaCl solution of 50-200 mmol/L，SOD，POD，CAT activity and soluble protein content of ‘Miaohong’ were significantly higher than ‘Jiaren’ ，while the MDA content was significantly lower than ‘Jiaren’ .Changes of physiological parameters were measured on two tomato varieties under different salt concentration showed ‘Miaohong’ salt resistance was stronger than the ‘Jiaren’ ，this provided a reference and promotion material for breeding salt and organic cultivation.

References:

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Last Update: 2015-08-06