کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2415921 1552143 2007 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of temperature increase under low radiation conditions on phytochemicals and ascorbic acid in greenhouse grown broccoli
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم زراعت و اصلاح نباتات
پیش نمایش صفحه اول مقاله
Effect of temperature increase under low radiation conditions on phytochemicals and ascorbic acid in greenhouse grown broccoli
چکیده انگلیسی

Due to the prognosticated warming in late autumn in northern and central Europe, the objective of this investigation was to establish whether temperature increase under low radiation conditions affect the content of phytochemicals such as carotenoids, chlorophylls and glucosinolates, and the also antioxidative effective ascorbic acid in broccoli. Greenhouse grown broccoli, cv. Marathon, was cultivated after head induction at three different daily mean temperatures (in the range from 7.2 to 19.7 °C) under two different daily mean radiation levels (in the range from 1.9 to 13.4 mol m−2 day−1). Contents of ascorbic acid, lutein and alkyl glucosinolates (especially glucoraphanin) increased at daily mean temperatures between 7–13 °C combined with a moderate daily mean radiation of 10–13 mol m−2 day−1. The alkyl glucosinolates glucoraphanin and glucoiberin increased 8-fold and ascorbic acid 0.5-fold, whereas the main indole glucosinolate glucobrassicin was reduced. The data provided here have implications for quality-oriented production and crop management strategies in warmed up autumn periods aiming to optimize health-promoting substance content in broccoli under low radiation conditions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Agriculture, Ecosystems & Environment - Volume 119, Issues 1–2, February 2007, Pages 103–111
نویسندگان
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