|Table of Contents|

Effects of Calcium Nitrate Stress on Physiological Characteristics of Tomato Seedlings

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2021年23
Page:
52-56
Research Field:
Publishing date:

Info

Title:
Effects of Calcium Nitrate Stress on Physiological Characteristics of Tomato Seedlings
Author(s):
ZHANG Miaojuan1; WU Qiong2; WANG Lixia2
(1.Shanxi Yuncheng Agro-technical College,Yuncheng，Shanxi 044000；2.Jinzhong College,Yuci，Shanxi 030600)
Keywords:
tomato; calcium nitrate; soluble sugar; malondialdehyde
PACS:
-
DOI:
10.11937/bfyy.20211320
Abstract:
Taking tomato as the test material.The methods of petri dish breeding and paper cup seedling were used to study the stress effects of NO-3 and Ca2+ on tomato under different concentrations of calcium nitrate solution treatment.The plant height,root length,stem thickness,dry and fresh weight of the seedlings and the chlorophyll,soluble sugar and malondialdehyde in the leaves were measured,in order to provide a reference for the salt-tolerant cultivation technology of tomato facilities.The results showed that uhanges in malondialdehyde.Under the treatment of 0-100 mmol·L-1Ca(NO3)2 mixture,with the increase of concentration,the growth of tomato seedlings decreased significantly;100 mmol·L-1 was the lethal concentration of tomato seedlings under Ca(NO3)2 stress.Under the condition of Ca(NO3)2 mixed solution (0-75 mmol·L-1),the soluble sugar content,photosynthetic pigment and malondialdehyde content increased significantly.Ca(NO3)2 stress caused the increase of the plasma membrane permeability of tomato seedlings and the destruction of nutrient transport,which severely inhibited the growth of tomato seedlings.

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Last Update: 2022-03-15