|Table of Contents|

Effects of Different NaCl Concentrations on Seed Germination and Young Seedling Growth of Four Varieties of Tomato

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2019年24
Page:
1-6
Research Field:
Publishing date:

Info

Title:
Effects of Different NaCl Concentrations on Seed Germination and Young Seedling Growth of Four Varieties of Tomato
Author(s):
LI Li1; ZHANG Ke1; HE Mingcai2; LIANG Xia2; JIANG Li1
(1.State Key Laboratory of Desert and Oasis Ecology,Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences,Urumqi,Xinjiang 830011；2.Xinjiang Tunhe Co.Ltd.,Changji,Xinjiang 831100)
Keywords:
tomato; salt stress; salt tolerant varieties; seed germination
PACS:
-
DOI:
10.11937/bfyy.20191839
Abstract:
Four kinds of processed tomatoes suitable for cultivation in Xinjiang were used as test materials,the effects of salt stress on seed germination and seedling growth of four kinds of processed tomatoes were studied,and the critical concentration of salt stress on seed germination of processed tomato materials was established.The results showed that with the increase of NaCl,the germination rate,germination index and radicle length of tomato seeds showed a decreasing trend,and different tomato varieties showed different salt-tolerant responses to salt stress.Compared with the control treatment,the germination rate,germination index and radicle length of TH5501 and TH8501 were significantly decreased at 25 mmol?L-1 treatment,radicle length of TH8 was significantly increased.When treated with 50 mmol?L-1 NaCl,the germination rate,germination index and radicle length of TH8 still did not significantly decrease,but the germination rate,germination index and radicle length of TH306 significantly decreased.Only with 100 mmol?L-1 NaCl treatment,the germination rate,germination index and radicle length of TH8 decreased significantly.By simulating the regression curve,the critical and limit values of salinity at the germination stage of TH5501,TH8,TH8501 and TH306 were analyzed as 47 mmol?L-1 and 109 mmol?L-1,94 mmol?L-1 and 184 mmol?L-1,25 mmol?L-1 and 108 mmol?L-1,53 mmol?L-1 and 173 mmol?L-1,respectively.In addition,the degree of inhibition of salt on root length of germination seedlings of four tomato varieties was ranked as TH8501

References:

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Last Update: 2019-12-30