|Table of Contents|

Effects of Organic Liquid Fertilizer on Physiological and Photosynthetic Characteristics of Canola at Seedling Stage Under Saline-alkali Stress

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2022年08
Page:
1-8
Research Field:
Publishing date:

Info

Title:
Effects of Organic Liquid Fertilizer on Physiological and Photosynthetic Characteristics of Canola at Seedling Stage Under Saline-alkali Stress
Author(s):
SUN LupengYANG YangWANG YajuanYIN FatingZHANG Fenghua
(College of Agriculture,Shihezi University/Key Laboratory of Oasis Ecological Agriculture,Xinjiang Corps,Shihezi,Xinjiang 832003)
Keywords:
saline-alkali stressorganic liquid fertilizercanola seedling stagephysiological characteristicsphotosynthetic characteristics
PACS:
-
DOI:
10.11937/bfyy.20214206
Abstract:
Taking canola ‘Huayouza 62’ as the test material,a pot experiment was conducted,the saline-alkali gradient was low,morderate and high,then the organic liquid fertilizer for facilities was 2,4 mL·kg-1 and 6 mL·kg-1 under each saline-alkali gradient,respectively.The effects of different amounts of organic liquid fertilizer on the physiological and photosynthetic characteristics of canola at seedling stage under saline-alkali mixed stress were investigated,in order to provide reference for the planting technology of canola in saline-alkali land of Xinjiang.The results showed that the soluble sugar and soluble protein contents,net photosynthetic rate,transpiration rate,intercellular CO2 concentration and stomatal conductance of canola seedlings were increased after the application of organic liquid fertilizer under different saline-alkali stress,while the activities of peroxidase,catalase and superoxide dismutase increased significantly (P<0.05).When the concentration of organic liquid fertilizer was 4 mL·kg-1 and 6 mL·kg-1,the physiological and photosynthetic parameters of canola seedlings under moderate saline-alkali stress were better than those under mildium and severe saline-alkali stress.The effect of applying organic fertilizer in the early stage was better than that in the late stage.In conclusion,the application of 4 mL·kg-1 of organic liquid fertiliser under moderate saline-alkali stress significantly improved the physiological characteristics and photosynthetic parameters of oilseed canola seedlings and adapted them to the saline-alkali environment,more significantly in the early seedling stage than in the late seedling stage.

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Last Update: 2022-07-02