|Table of Contents|

Effect of Exogenous Melatonin on Root Growth and Endogenous Melatonin Content of Lettuce

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2019年06
Page:
7-11
Research Field:
Publishing date:

Info

Title:
Effect of Exogenous Melatonin on Root Growth and Endogenous Melatonin Content of Lettuce
Author(s):
XI Linjie1; 2; WANG Chenyu1; 2; YAN Lulu1; 2; YANG Junwei1; 2; ZHANG Jing1; 2; ZOU Zhirong1; 2; PAN Tonghua1; 2
(1．Department of Horticulture,Northwest A&F University，Yangling,Shaanxi 712100;2.Key Laboratory of Protected Horticultural Engineering in Northwest,Agriculture Ministry,Yangling,Shaanxi 712100)
Keywords:
melatonin; lettuce; root growth
PACS:
-
DOI:
10.11937/bfyy.20182428
Abstract:
With ‘Hanyu’ butter lettuce as the test material and clear water and ethanol as the control,six different melatonin concentrations (0.01 μmol?L-1,0.10 μmol?L-1,1.00 μmol?L-1,10.00 μmol?L-1,50.00 μmol?L-1 and 100.00 μmol?L-1) were used to study the effects of different concentrations of melatonin on lateral root development of lettuce seedlings at the germination stage,root morphology,fresh and dry weight and endogenous melatonin content of lettuce seedlings were investigated.In order to provide theoretical basis for root development regulation of melatonin in lettuce seedlings.The results showed that 1.00 μmol?L-1 significantly increased the number of lateral roots in the germination stage of lettuce seeds,the number of lateral roots,the average diameter of roots and the total surface area of roots of lettuce seedlings,while reduced the length of roots,in comparison with CK and ethanol.Meanwhile,it improved the fresh and dry weight，and endogenous melatonin content of lettuce seedlings was 9 times that of CK.

References:

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Last Update: 2019-04-03