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Keywords = Ipomoea hederacea Jacq.

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15 pages, 1598 KiB  
Article
Populations of Ipomoea hederacea var. integriuscula in Field Margins Are Maintained by Seed Production of Individuals from a Specific cohort
by Nozomi Ihara and Hiroyuki Kobayashi
Agronomy 2022, 12(10), 2392; https://doi.org/10.3390/agronomy12102392 - 3 Oct 2022
Cited by 1 | Viewed by 2144
Abstract
Entireleaf morning glory (Ipomoea hederacea Jacq. var. integriuscula A. Gray) is a difficult-to-control weed that causes severe yield loss in soybean (Glycine max L.). It invades fields from the field margins and contributes to maintenance of the populations in the fields. [...] Read more.
Entireleaf morning glory (Ipomoea hederacea Jacq. var. integriuscula A. Gray) is a difficult-to-control weed that causes severe yield loss in soybean (Glycine max L.). It invades fields from the field margins and contributes to maintenance of the populations in the fields. This study aimed to determine the optimal period to control the populations in field margins effectively. We identified the naturally emerging plants in field margins and adjacent fields. We recorded the number of invading vines and the timing of flowering and fruiting of several cohorts (each cohort comprised a group of individuals that emerged within a certain time frame). The main seed-producing cohort on the field margins was a cohort that emerged from early August to mid-September and flowered and fruited after mid-September. The weed formed seed banks in the field margins, maintained by repeated depletion and accumulation during the emergence and seed production stages. The weed control rate by weed management practices was higher in field margins (100%) than in the fields (76%). In conclusion, the entireleaf morning glory populations were maintained by specific cohorts in field margins and weed management practices from early August to mid-September can effectively reduce its population size in the field margins. Full article
(This article belongs to the Section Weed Science and Weed Management)
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16 pages, 220 KiB  
Article
Compositional Study and Antioxidant Potential of Ipomoea hederacea Jacq. and Lepidium sativum L. Seeds
by Muhammad Zia-Ul-Haq, Shakeel Ahmad, Luca Calani, Teresa Mazzeo, Daniele Del Rio, Nicoletta Pellegrini and Vincenzo De Feo
Molecules 2012, 17(9), 10306-10321; https://doi.org/10.3390/molecules170910306 - 29 Aug 2012
Cited by 102 | Viewed by 8355
Abstract
The present investigation has been carried out to determine the proximate composition, amino acids, metal contents, oil composition as well as the antioxidant capacity of the seeds of Ipomoea hederacea Jacq. and Lepidium sativum L. Proximate composition indicated a great difference in oil [...] Read more.
The present investigation has been carried out to determine the proximate composition, amino acids, metal contents, oil composition as well as the antioxidant capacity of the seeds of Ipomoea hederacea Jacq. and Lepidium sativum L. Proximate composition indicated a great difference in oil (14.09 ± 0.66, 28.03 ± 1.05) and fibre (16.55 ± 0.31, 6.75 ± 1.20) contents for I. hederacea and L. sativum, respectively. Fatty acid profile indicated that oleic acid (19.50 ± 0.37, 30.50 ± 0.16) and linoleic acid (52.09 ± 0.48, 8.60 ± 0.38) are the major fatty acids. γ-Tocopherol and d-tocopherol (28.70 ± 0.14, 111.56 ± 0.37) were the most abundant in the seed oil of I. hederacea and L. sativum, respectively. Results of TEAC, FRAP and TRAP antioxidant assays indicated that L. sativum has much greater antioxidant potential than I. hederacea. Full article
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