Effect of Sweet Pepper (Capsicum annuum L.) Seedling Age and Cultivation Method on Seedling Quality, Photosynthetic Parameters and Productivity

IF 3.3 2区 农林科学 Q1 AGRONOMY Agronomy-Basel Pub Date : 2023-08-28 DOI:10.3390/agronomy13092255
J. Jankauskienė, K. Laužikė
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Abstract

The age of seedlings affects not only the quality of the seedlings but also the yield. The age of seedlings of sweet peppers grown in a greenhouse and their cultivation method has been little studied. Therefore, the aim of this research was to determine the effect of agrotechnological tools (direct seeding or transplanting) on sweet pepper (Capsicum annuum L.) seedling quality and crop yield. The research was carried out in a greenhouse covered with double polymeric film at the Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry. Two factors were investigated: seedling establishment method (direct seeding and transplanting) and their different age (60, 50, and 40 days). The 60-day-old seedlings (both sown directly and grown by transplanting) were taller, and had more leaves, a larger leaf area, and a thicker stem, than the 50- and 40-day-old seedlings. The highest content of dry matter was found in the leaves of 60-day-old seedlings that were grown by transplanting. The chlorophyll index was also highest in the leaves of these seedlings. The highest photosynthetic parameters (photosynthetic rate, stomatal conductance, intercellular CO2, transpiration rate) were found in the leaves of 40-day-old seedlings (both sown directly and grown by transplanting). Higher yields were demonstrated in sweet peppers whose seedlings were planted in the greenhouse at the age of 60 days and which were sown directly in cups.
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甜椒(Capsicum annuum L.)苗龄和栽培方法对幼苗质量、光合参数和生产力的影响
幼苗的年龄不仅影响幼苗的质量,而且影响产量。温室栽培甜椒苗龄及其栽培方法研究较少。因此,本研究的目的是确定农业技术工具(直播或移植)对甜椒幼苗质量和作物产量的影响。这项研究是在立陶宛农业和林业研究中心园艺研究所的一个覆盖着双层聚合物膜的温室中进行的。研究了两个因素:成苗方法(直播和移栽)及其不同年龄(60、50和40天)。与50天和40天的幼苗相比,60天的幼苗(直接播种和移植生长)更高,叶片更多,叶面积更大,茎更厚。通过移植生长的60天龄幼苗的叶片中干物质含量最高。叶绿素指数在这些幼苗的叶片中也最高。40日龄幼苗(直接播种和移栽)的叶片光合参数(光合速率、气孔导度、细胞间CO2、蒸腾速率)最高。甜椒的产量更高,其幼苗在60天大时种植在温室中,并直接用杯子播种。
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来源期刊
Agronomy-Basel
Agronomy-Basel Agricultural and Biological Sciences-Agronomy and Crop Science
CiteScore
6.20
自引率
13.50%
发文量
2665
审稿时长
20.32 days
期刊介绍: Agronomy (ISSN 2073-4395) is an international and cross-disciplinary scholarly journal on agronomy and agroecology. It publishes reviews, regular research papers, communications and short notes, and there is no restriction on the length of the papers. Our aim is to encourage scientists to publish their experimental and theoretical research in as much detail as possible. Full experimental and/or methodical details must be provided for research articles.
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