|Table of Contents|

Effects of Chitooligosaccharide on Growth and Quality of Brassica chinensis L. Seedlings Under NaCl Stress

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2020年15
Page:
32-37
Research Field:
Publishing date:

Info

Title:
Effects of Chitooligosaccharide on Growth and Quality of Brassica chinensis L. Seedlings Under NaCl Stress
Author(s):
ZHAO Xiaoqiong1LIANG Taishuai2ZHANG Henghui1
(1.Department of Environmental and Safety Engineering,Taiyuan Institute of Technology,Taiyuan,Shanxi 030008;2.College of Pharmacy,Shanxi Medical University,Taiyuan,Shanxi 030001)
Keywords:
Brassica chinensis L.chitooligosaccharideNaCl stressgrowth physiologyphotosynthesisquality
PACS:
-
DOI:
10.11937/bfyy.20194521
Abstract:
Taking ‘Qibaoqing’ Brassica chinensis L.as experimental materials,a greenhouse potting experiment was performed to explore the effects of foliar-spraying 100 mg?L-1 chitooligosaccharide solution (COS) on the growth,physiological characteristics and quality of Brassica chinensis L.seedlings under different levels of salt stress (0.3%,0.6% and 1.2% of soil NaCl contents).The results showed that compared with 0.3% NaCl and 0.6% NaCl stress,100 mg?L-1 COS solution had a better alleviation effect on 1.2% NaCl stress,which could significantly enhance the antioxidant capacity and alleviate the inhibition of NaCl stress on growth,photosynthesis and quality of Brassica chinensis L.seedlings,with the plant height,root length,shoot and root dry weight,Pn,Gs,Tr,contents of chlorophyll a,chlorophyll a+b and carotenoid,activities of SOD,POD and CAT,and contents of soluble protein,soluble sugar,vitamin C and free amino acid increased obviously,and with the salt injury index,Ci,contents of O?[TX-*4]2,MDA and nitrate decreased significantly.

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Last Update: 2020-10-28