不同灌溉制度和种植时间对玫瑰茄(Hibiscus sabdariffa L.)的花萼质量、数量、含油量和水分利用效率的影响

IF 1 4区 农林科学 Q4 CHEMISTRY, APPLIED Grasas y Aceites Pub Date : 2022-09-08 DOI:10.3989/gya.0564211
A. Zand-Silakhoor, H. Madani, H. Heidari Sharifabad, M. Mahmoudi, G. Nourmohammadi
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引用次数: 0

摘要

研究了灌溉制度和种植日期对玫瑰茄(Hibiscus sabdariffa L.)生理特性、提取液质量和含油量的影响。从播种到收获花萼的生长期随着播种时间的推迟而缩短。干旱胁迫或晚种降低了茎径和株高,但轻度干旱条件下提高了产量、总酚含量、总花青素含量、维生素C含量和花萼水分利用效率。此外,晚种显著提高了植物的抗氧化活性和肾盏水分利用效率。有人认为,延迟种植时收获指数的增加可能是由于库容量的增加,光合作用活性更好,同化物利用效率更高。由于干旱胁迫和播种期推迟,种子含油量显著下降。这些发现表明,轻度干旱胁迫可以提高花萼的质量和数量以及水分利用效率。
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Influence of different irrigation regimes and planting times on the quality and quantity of calyx, seed oil content and water use efficiency of roselle (Hibiscus sabdariffa L.)
This study was carried out to examine the physiological traits, quality of calyx extract and seed oil content of roselle (Hibiscus sabdariffa L.) as affected by irrigation regimes and planting dates. The growth period from seed sowing to calyx harvesting was shortened as planting time was delayed. Stem diameter and plant height were decreased by drought stress or late planting, but calyx yield, total phenolic content, total anthocyanin content, vitamin C, and calyx water use efficiency increased under mild drought condition. In addition, antioxidant activity and calyx water use efficiency were significantly increased by late planting. It was suggested that an increase in calyx harvest index in delay in planting would be due to better photosynthesis activity and higher assimilate use efficiency because of the increase in sink capacity. Seed oil content decreased considerably due to drought stress and delay in planting date. These findings suggest that mild drought stress improves the quality and quantity of calyx and water use efficiency.
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来源期刊
Grasas y Aceites
Grasas y Aceites 工程技术-食品科技
CiteScore
2.50
自引率
0.00%
发文量
50
审稿时长
3 months
期刊介绍: Grasas y Aceites is a peer-reviewed journal devoted to the publication of original articles concerning the broad field of lipids, especially edible fats and oils from different origins, including non acyl lipids from microbial origin relevant to the food industry. It publishes full research articles, research notes, reviews as well as information on references, patents, and books. Grasas y Aceites publishes original articles on basic or practical research, as well as review articles on lipid related topics in food science and technology, biology, (bio)chemistry, medical science, nutrition, (bio)technology, processing and engineering. Topics at the interface of basic research and applications are encouraged. Manuscripts related to by-products from the oil industry and the handling and treatment of the wastewaters are also welcomed. Topics of special interest to Grasas y Aceites are: -Lipid analysis, including sensory analysis -Oleochemistry, including lipase modified lipids -Biochemistry and molecular biology of lipids, including genetically modified oil crops and micro-organisms -Lipids in health and disease, including functional foods and clinical studies -Technical aspects of oil extraction and refining -Processing and storage of oleaginous fruit, especially olive pickling -Agricultural practices in oil crops, when affecting oil yield or quality
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