|Table of Contents|

Effects of Salicylic Acid on Plant Growth Development and Qualities in Flowering Chinese Cabbage

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2020年22
Page:
53-59
Research Field:
Publishing date:

Info

Title:
Effects of Salicylic Acid on Plant Growth Development and Qualities in Flowering Chinese Cabbage
Author(s):
ZHU Yunna1; 2; YANG Qingqing2; KOU Erfeng2; SONG Shiwei2; CHEN Riyuan2; HAO Yanwei2
(1.Henry Fok College of Biology and Agriculture,Shaoguan University,Shaoguan,Guangdong 512005;2.College of Agriculture,South China Agricultural University,Guangzhou,Guangdong 510642)
Keywords:
flowering Chinese cabbage; salicylic acid; growth development; quality
PACS:
-
DOI:
10.11937/bfyy.20200707
Abstract:
Flowering Chinese cabbage variety of ‘Youqing NO.33’ was used as experimental materials,with the potting experiment in greenhouse,the differences among different levels of salicylic acid treatment were investigated at 0,50 μmol?L-1and 100 μmol?L-1.The effects of salicylic acid on plant growth development and qualities were studied by measuring budding rate,flowering rate,plant height,stem width,chorophyll content,and nutritional qualities.Compared with the ones of control,the rates of budding and flowering,and plant height in flowering Chinese cabbage were increased significantly by 18.06% and 17.42% under 50 μmol?L-1and 100 μmol?L-1 salicylic acid,but stem width was decreased.Salicylic acid had a tendency to increase chlorophyll content and decrease Chl a/Chl b,but had no effect on carotenoid content.Compared with control,the contents of nutritional qualities were increased by salicylic acid.As for soluble sugar and vitamin C,the ones of 50 μmol?L-1 salicylic acid were higher than those of 100 μmol? L-1,but as for soluble protein and free amino acid,the two treatments showed opposite results.Based on the results of correlation analysis,the concentration of salicylic acid had significant positive correlation with plant height,budding rate,soluble protein content,and free amino acid content,but significant negative correlation with the width of stem.In conclusion,spraying appropriate concentration of salicylic acid on the leaves was beneficial to increase the growth and improve the qualities of flowering Chinese cabbage,and 50 μmol?L-1 salicylic acid had the optimal effects.

References:

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Last Update: 2021-02-02