由于光合作用受到限制,节能温室膜降低了季节性和品种依赖性辣椒的产量

IF 3.5 2区 农林科学 Q1 AGRICULTURE, MULTIDISCIPLINARY
Sachin G. Chavan , Xin He , Chelsea Maier , Yagiz Alagoz , Sidra Anwar , Zhong-Hua Chen , Oula Ghannoum , Christopher I. Cazzonelli , David T. Tissue
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引用次数: 0

摘要

玻璃屋薄膜可以通过限制非生产性的发热辐射来降低能源成本,但对温室园艺作物产量的影响仍然未知。设计用于阻挡产生热量的长波长光的节能膜ULR-80(具有80%透光率的超低反射率膜,称为智能玻璃;SG)的效果也降低了光合活性辐射(标准杆数),以及两个水培辣椒(辣椒属)品种(红辣椒和橙辣椒)的产量。在上升[秋季实验(AE)]和下降[夏季实验(SE)]光周期期间,作物在四个高科技温室中生长,两个季节的每日光积分(DLI)相似。在对照玻璃中,红色品种比橙色品种表现出更高的光合速率(光饱和-Asat)和产量,但在SG中,在生长光照和产量下,模拟光合速率和产量的下降幅度更大,而光合能力没有变化。叶绿素a/b和类胡萝卜素的叶片色素比率:叶绿素在两个季节都不受SG的影响,这表明SG和对照之间的叶绿体稳态相似。光合色素和叶黄素去环氧化状态(DPS)的季节差异表明,在AE期间,品种能够感知SG改变的光环境,但不能感知SE。SE与较低的日光照水平相关,红色和橙色品种的产量分别大幅下降29%和13%。因此,SG在SE期间引起的产量下降更高,这表明SG可能对AE期间种植的辣椒作物更有利。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
An energy-saving glasshouse film reduces seasonal, and cultivar dependent Capsicum yield due to light limited photosynthesis

Glasshouse films can be used to reduce energy costs by limiting non-productive heat-generating radiation, but the impact on yield of greenhouse horticultural crops remains unknown. The effects of energy-saving film ULR-80 (ultra-low-reflectivity film with 80 % light transmission referred to as Smart Glass; SG) designed to block long wavelength light that generates heat also reduced photosynthetically active radiation (PAR) consequently affecting crop morphology, photosynthesis, leaf pigments, and yield of two hydroponically grown capsicum (Capsicum annuum L.) cultivars (Red and Orange). The crops were grown in four high-tech glasshouse bays over two seasons of similar daily light integrals (DLI) during ascending [Autumn Experiment (AE)] and descending [Summer Experiment (SE)] photoperiods. The Red cultivar exhibited higher photosynthetic rates (light saturated - Asat) and yield than the Orange cultivar in control glass but displayed stronger reductions in modelled photosynthetic rates at growth light and yield in SG without changes in photosynthetic capacity. Foliar pigment ratios of chlorophyll a/b and carotenoid:chlorophyll remained unaffected by the SG during both seasons indicating that chloroplast homeostasis was similar between SG and control. The seasonal differences in photosynthetic pigments and xanthophyll de-epoxidation state (DPS) revealed that cultivars were able to sense the SG-altered light environment during the AE, but not SE. The SE correlated with a lower daily light level and a substantial yield reduction of 29 % and 13 % in Red and Orange cultivars, respectively. Thus, SG-induced higher reductions in yield during the SE indicate that SG may be more beneficial for capsicum crops planted during AE.

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来源期刊
Annals of Agricultural Science
Annals of Agricultural Science AGRICULTURE, MULTIDISCIPLINARY-
CiteScore
12.60
自引率
0.00%
发文量
18
审稿时长
33 days
期刊介绍: Annals of Agricultural Sciences (AOAS) is the official journal of Faculty of Agriculture, Ain Shams University. AOAS is an open access peer-reviewed journal publishing original research articles and review articles on experimental and modelling research at laboratory, field, farm, landscape, and industrial levels. AOAS aims to maximize the quality of the agricultural sector across the globe with emphasis on the Arabian countries by focusing on publishing the high-quality applicable researches, in addition to the new methods and frontiers leading to maximizing the quality and quantity of both plant and animal yield and final products.
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