|Table of Contents|

Effects of Different Concentrations of Potassium Nutrition on  Growth of Zinnia elegans Seedlings

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2018年11
Page:
81-84
Research Field:
Publishing date:

Info

Title:
Effects of Different Concentrations of Potassium Nutrition on  Growth of Zinnia elegans Seedlings
Author(s):
ZHU YanlinZHU YihaoLI Haiyun
(College of Agriculture,Liaocheng University,Liaocheng,Shandong 252059)
Keywords:
Zinnia eleganspotassium nutritionseedling growth
PACS:
-
DOI:
10.11937/bfyy.20174042
Abstract:
Zinnia elegans was used as experimental materials,potassium deficiency nutrient solution was used as control (CK),effects of different concentration (4,8,12,16 mmol?L-1) of potassium sulfate on the index of seedling growth and root morphology were studied.The results showed that the index of Zinnia elegans seedling growth increased firstly and then declined with the increasing K+ concentration,the indicators reached the highest when K+ concentration was 12 mmol?L-1.The plant height of Zinnia elegans seedlings treated with K+ were significantly higher than that of control,and when K+ concentration was 12 mmol?L-1,it was the highest,with an increase of 80.52% compared with the control.K+ treatment increased the root length,root surface area and root volume,and all these indicators were the highest under 12 mmol?L-1 K+ treatment.The suitable concentration of K+(12 mmol?L-1) had promotive effect on the growth of Zinnia elegans seedlings,the promoting effect on underground growth was greater than that of overground,higher concentration of K+ had negative effects on growth of Zinnia elegans.

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Last Update: 2018-06-29