Managing irrigation and sowing date can improve oil content and fatty acid composition of Camelina sativa L

IF 2.3 4区农林科学 Q1 AGRONOMY

Archives of Agronomy and Soil Science Pub Date : 2023-02-20 DOI:10.1080/03650340.2023.2177989

Saba Shiranirad, H. Eyni-Nargeseh, A. Shirani Rad, M. Malmir

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引用次数: 2

Abstract

ABSTRACT A two-year experiment was arranged as a factorial in a randomized complete block design with three replicates to investigate the response of camelina oil yield and its oil composition to irrigation regimes at different sowing dates in Karaj, Iran. The experiment factors were irrigation regimes including (i) full irrigation (well-watered), (ii) restricted irrigation from silicle formation (late-stress), (iii) restricted irrigation from flowering (mild-stress) and (IV) restricted irrigation from maximum stem length (early-stress) and planting dates consisting of (i) 27-Sep, (ii) 12-Oct and (iii) 25-Oct. The highest oil content (30.04%) was obtained from the first sowing date and was 2% and 5.4% higher than 12-Oct and 25-Oct, respectively. Obtained grains from well-watered irrigation regime had significantly more oil content (31.02%) than the other irrigation regimes. Delaying in sowing date and water-deficit stress raised saturated fatty acids (palmitic, stearic and arachidic acids). While delayed sowing date (12 and 25-Oct) and water-deficit stress (low, mild and severe stresses) increased the content of palmitic, eicosenoic and erucic fatty acids, the oleic, linoleic and linolenic acids were reduced in such conditions. It seems that postponing the sowing date to 12-Oct and restricting irrigation from silicle formation would be reasonable as it can decline water consumption.

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灌溉和播种期的管理可以提高Camelina sativa L的含油量和脂肪酸组成

摘要在伊朗卡拉杰，采用三个重复的随机完全区组设计，以两年为因子，研究了不同播种期骆驼蓬油产量及其油成分对灌溉制度的响应。实验因素是灌溉制度，包括（i）充分灌溉（充分灌溉），（ii）角果形成限制灌溉（后期胁迫），（iii）开花限制灌溉（轻度胁迫）和（IV）最大茎长限制灌溉（早期胁迫）和种植日期（i）9月27日、（ii）10月12日和（iii）10月25日。从第一个播种日开始，含油量最高（30.04%），分别比10月12日和10月25日高2%和5.4%。与其他灌溉制度相比，灌溉制度下获得的谷物含油量显著增加（31.02%）。推迟播种日期和缺水胁迫会增加饱和脂肪酸（棕榈酸、硬脂酸和花生酸）。虽然推迟播种日期（10月12日和25日）和缺水胁迫（低、轻度和重度胁迫）增加了棕榈酸、二十碳酸和芥酸的含量，但油酸、亚油酸和亚麻酸在这种条件下减少。看来，将播种日期推迟到10月12日，并限制从角果形成开始的灌溉是合理的，因为这可以降低耗水量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Archives of Agronomy and Soil Science AGRONOMY-SOIL SCIENCE

CiteScore

5.50

自引率

4.20%

发文量

107

期刊介绍： rchives of Agronomy and Soil Science is a well-established journal that has been in publication for over fifty years. The Journal publishes papers over the entire range of agronomy and soil science. Manuscripts involved in developing and testing hypotheses to understand casual relationships in the following areas: plant nutrition fertilizers manure soil tillage soil biotechnology and ecophysiology amelioration irrigation and drainage plant production on arable and grass land agroclimatology landscape formation and environmental management in rural regions management of natural and created wetland ecosystems bio-geochemical processes soil-plant-microbe interactions and rhizosphere processes soil morphology, classification, monitoring, heterogeneity and scales reuse of waste waters and biosolids of agri-industrial origin in soil are especially encouraged. As well as original contributions, the Journal also publishes current reviews.