Comparison of photosynthetic efficiency and growth characteristics of paprika in semi-closed vs. conventional greenhouses

IF 2.4 3区 农林科学 Q1 Agricultural and Biological Sciences
Eun ji Kim, Beom Seon Lee, Yong Hwan Jeon, Se Hun Ju, Yoon Go, Jin Sub Park, Joonwoo Lee, Huijun Yang, Haeyoung Na
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引用次数: 0

Abstract

This study investigated the differences in light intensity, photosynthetic efficiency, and growth characteristics of paprika plants cultivated in a semi-closed greenhouse covered with low-iron diffuse glass (SG-LDG) and a conventional greenhouse covered with low-iron regular glass (CG-LRG). There was no significant difference in light intensity between the SG-LDG and CG-LRG from the apical meristem to below 100 cm. However, below 150 cm, the SG-LDG showed higher light intensity than the CG-LRG. The light response curve and atmospheric CO2 response(A-Ca) curve, which represent photosynthetic efficiency, were not significantly affected by crop canopy differences between the two greenhouses during the early cultivation stage. However, after 12 weeks of planting, SG-LDG showed higher photosynthetic efficiency. The Jmax and Vcmax values showed no differences between the plants in the two greenhouses until 4 weeks after planting. 12 weeks after planting, plants in SG-LDG showed higher Jmax and Vcmax values than those in CG-LRG. All the growth characteristics of plants cultivated in SG-LDG were superior to those of plants cultivated in CG-LRG. Therefore, the improvement in light intensity and photosynthetic efficiency at the lower positions of plants in SG-LDG is considered to have a positive impact on crop quantity and quality.

Abstract Image

半封闭与常规温室中辣椒光合效率及生长特性的比较
研究了低铁漫射玻璃(SG-LDG)半封闭温室与低铁常规玻璃(CG-LRG)温室栽培辣椒植株的光强、光合效率和生长特性的差异。SG-LDG和CG-LRG从顶端分生组织到100 cm以下的光照强度无显著差异。但在150 cm以下,SG-LDG的光强高于CG-LRG。在栽培前期,代表光合效率的光响应曲线和大气CO2响应(A-Ca)曲线不受作物冠层差异的显著影响。种植12周后,SG-LDG表现出更高的光合效率。种植后4周,两大棚植株的Jmax和Vcmax均无显著差异。种植12周后,SG-LDG组植株的Jmax和Vcmax值均高于CG-LRG组。SG-LDG栽培植株的各项生长特性均优于CG-LRG栽培植株。因此,SG-LDG中植物下部光强和光合效率的提高被认为对作物数量和品质有积极影响。
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来源期刊
Horticulture Environment and Biotechnology
Horticulture Environment and Biotechnology Agricultural and Biological Sciences-Horticulture
CiteScore
4.30
自引率
4.20%
发文量
0
审稿时长
6 months
期刊介绍: Horticulture, Environment, and Biotechnology (HEB) is the official journal of the Korean Society for Horticultural Science, was launched in 1965 as the "Journal of Korean Society for Horticultural Science". HEB is an international journal, published in English, bimonthly on the last day of even number months, and indexed in Biosys Preview, SCIE, and CABI. The journal is devoted for the publication of original research papers and review articles related to vegetables, fruits, ornamental and herbal plants, and covers all aspects of physiology, molecular biology, biotechnology, protected cultivation, postharvest technology, and research in plants related to environment.
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