Effect of Chicken Manure, Tryptophan, Seaweed Extract and Vitamin B1 on Volatile Oils and Some Chemicals Constitute of Carum carvi Plants | ||
| Minia Journal of Agricultural Research and Development | ||
| Volume 45, Issue 4, December 2025, Pages 725-742 PDF (666.94 K) | ||
| DOI: 10.21608/mjard.2025.457951 | ||
| Abstract | ||
| Carum carvi L., a biennial herbaceous plant, has been grown and used for its fragrant seeds and medicinal benefits. To enhance the yield and quality of aromatic plants, sustainable nutrient management is essential. Accordingly, in randomized complete design experiment caraway plants were treated with chicken manure (CM) at rates of 0.0, 2.5, 5.0, and 7.5 tons per feddan (main factor), along with of tryptophan (0, 200, and 300 ppm), seaweed extract (200 and 300 ppm), and vitamin B1 (100 and 200 ppm) (secondary factor). Both factors significantly improved the seed as well as volatile oil production. Moreover, there were significant interactions between the two factors for both factors. That effect was combined with similar effect on photosynthetic pigments and NPK content. Untreated plats had the lowest % (2.012 and 2.212) and yield (0.155 and 0.150 ml/plant) in both seasons respectively. Whereas the highest percentages (2.703 and 2.723) were for plants treated with (5.0 to/feddan of CM in addition to seaweed at 300 ppm) and (7.5 to/feddan of CM in addition to vitamin B1 at 200 ppm) respectively. This last treatment resulted in the highest volatile oil yield in both seasons 0.374 and 0.403 ml/plant. nevertheless, some other treatments had similar yield. Therefore, the previous study suggested that C. carvi volatile oil production could be significantly improved under the same experiment condition by application of CM at 5 ton/feddan in addition to tryptophan at 300 ppm, seaweed extract at 300 ppm or thiamin at 200ppm. | ||
| Keywords | ||
| Caraway; Chicken manure; tryptophan; seaweed extract and thiamine | ||
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