|Table of Contents|

Effects of Different Substrates EC and Alginic Acid Application Concentration on Tomato Seedling Growth

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2020年21
Page:
39-44
Research Field:
Publishing date:

Info

Title:
Effects of Different Substrates EC and Alginic Acid Application Concentration on Tomato Seedling Growth
Author(s):
GONG Binbin; ZHANG Bin; WU Xiaolei; WANG Ning; LI Jingrui; GAO Hongbo
(College of Horticulture,Hebei Agricultural University,Baoding，Hebei 071000)
Keywords:
substrate EC value; alginic acid; tomato seedling; growth index; seedling index
PACS:
-
DOI:
10.11937/bfyy.20194447
Abstract:
Tomato ‘Meiyan 1319’ was used as the test material.Three mixed substrates with significant differences in EC values(0.6,0.8,1.0 mS?cm-1) were selected and adding different contents of alginic acid as seedling substrate using the orthogonal test,which would provid theoretical basis for the cultivation of high-quality tomato seedlings.The results showed that the effect of adding alginic acid to promote the growth of tomato seedlings was closely related to the EC value of the substrate.In the higher EC value substrate (0.8,1.0 mS?cm-1),adding 3-6 g?L-1 alginic acid significantly promoted the growth of tomato seedlings,which showed that the stem diameter,chlorophyll content,root shoot ratio,fresh weight,seedling index of tomato seedlings were significantly higher than those of the control,while adding 9 g?L-1 alginic acid showed inhibition the growth.However,in the lower EC substrate (0.6 mS?cm-1),increasing the amount of alginate significantly increased the growth of tomato seedlings,but the indicators were still significantly lower than those of control.The results proved that the effect of adding alginic acid to promote the growth of tomato seedlings was closely related to the substrate fertilizer and the suitable substrate was 6 g?L-1 alginic acid adding in the substrate with EC value of 0.8-1.0 mS?cm-1.

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Last Update: 2021-01-14