|Table of Contents|

Effects of Combined Application of Delayed Supplementary Lighting and Bio-fungicides on Celery Seedling Raising

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2026年3
Page:
15-23
Research Field:
Publishing date:

Info

Title:
Effects of Combined Application of Delayed Supplementary Lighting and Bio-fungicides on Celery Seedling Raising
Author(s):
LI Weiming1; CHEN Lili1; WANG Hong2; MIN Mengyue1; SHEN Xin3; WANG Dongsheng1
(1.Nanjing Institute of Vegetable Science，Nanjing,Jiangsu 210042；2.Huai′an District Agricultural Technology Extension Center in Huai′an，Huai′an,Jiangsu 223232；3.College of Resources and Environment,Nanjing Agricultural University，Nanjing,Jiangsu 210095)
Keywords:
supplementary light; Trichoderma harzianum; celery; seedling cultivation
PACS:
S636.3
DOI:
10.11937/bfyy.20252445
Abstract:
Taking facility celery as the test material,a two-factor supplementary light seedling raising experiment was conducted in a glass greenhouse with six light qualities (R,W,B,R1B1,R1B2,R1B3) and four concentrations of Trichoderma harzianum (0,105,106,107 CFU · g-1) to study the effects of different light conditions and different concentrations of Trichoderma harzianum on seedling raising,in order to provide a reference for the production monitoring of celery seedlings.The results showed that,R light significantly increased the plant height，crown width，and aboveground fresh weight of celery seedlings，with the highest seedling index；under W light，B light，and red-blue composite lights，the plant height，crown width，and aboveground fresh weight first increased and then decreased with the increase of fungal agent concentration，reaching the optimal at 106 CFU·g-1；under R light，the aboveground fresh weight increased with the increase of fungal agent concentration；red-blue composite lights had a greater impact on the root system，with the longest total root length observed at the H concentration，and the number of root tips first increased and then decreased with the increase of fungal agent concentration.Principal component analysis (PCA) indicated that R light was beneficial to the improvement of growth indicators such as plant height and seedling index，while the 106 CFU·g-1 fungal agent significantly promoted the number of root tips，seedling index，and other indicators.In conclusion，monochromatic red light significantly improved the plant height，crown width，and seedling index of celery seedlings；red-blue composite lights had a greater impact on the root system；and the 106 CFU·g-1 Trichoderma harzianum showed the best promotion effect.

References:

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Last Update: 2026-02-24