gerol seeds

Phytochemical investigation of avocado seed material (Persea americana Mill., Lauraceae) resulted in the isolation of two glucosylated abscisic acid derivates. One of these was not known as a natural product and can be regarded as a potential ‘missing link’ in abscisic acid metabolism in plants. After fractionation by high-speed countercurrent chromatography, and multiple steps of column chromatography, structures were elucidated by 1D-, 2D-NMR, electrospray-MS to be the novel beta-d-glucoside of (1’S,6’R)-8′-hydroxyabscisic acid, and (1’R,3’R,5’R,8’S)-epi-dihydrophaseic acid beta-d-glucoside. Absolute configuration was determined by circulardichroism, optical rotation, and by NOE experiments.

Baldinger, Lisa ; Hagmüller, Werner ; Spanlang, Ulrike ; Matzner, Marlene and Zollitsch, Werner (2012) Sainfoin seeds as protein source for weaned piglets – a new utilization of a long-known forage legume. In: Rahmann, Gerold and Godinho, Denise (Eds.) Tackling the Future Challenges of Organic Animal Husbandry , Johann Heinrich von Thünen-Institut Federal Research Institute for Rural Areas, Forestry and Fisheries, Hamburg, Trenthorst, Germany, pp. 371-374.

Sainfoin (Onobrychis viciifolia) has been used as a forage legume for centuries and is also popular for use as green manure in some Austrian regions, but so far the protein-rich seeds have not been utilized as a feedstuff. As part of the EU Core Organic ll research project ICOPP (Improved contribution of local feed to support 100% organic feed supply to pigs and poultry), sainfoin seeds have recently been tested as a protein source for weaned piglets. The protein-rich components of the control diet were peas and soybean cake, which were substituted by sainfoin seeds in the experimental diets H (10% sainfoin seeds), D 10 and D 16 (10 and 16% dehulled sainfoin seeds, respectively; as fed basis). Neither feed intake and body weight gain nor feed conversion ratio differed between treatments. This leads to the conclusion that sainfoin seeds can be used as a protein source for piglets just as well as peas and soybean cake.

Summary.

Oshunsanya, S. O. ; Fagbenro, J. A. ; Aliku, O. and Oke, O. A. (2015) Nursery Establishment of Moringa Oleifera as Affected by Pre-Sowing Seed Treatments in a Coarse Textured Soil. In: Rahmann, Gerold ; Olabiyi, Timothy Ipoola and Olowe, Victor Idowu (Eds.) Achieving Social and Economic Development Through Ecological and Organic Agricultural Alternatives, Proceedings of the Scientific Track, 3rd African Organic Conference, 5 – 9 October 2015, Lagos, Nigeria , pp. 1-6.

Pre-sowing seed treatments have been reported to have influence on the germination percentage and growth performance, which could affect crop yield when transplanted to the field. Replacing chemically expensive and laborious pre-treatment with organically pre-treated seeds could reduce the cost of producing moringa by resource-poor farmers. Therefore, a screen-house experiment was conducted at the Department of Agronomy, University of Ibadan to examine effects of six pre-sowing seed treatments – dry seed with complete coat (DSCC), dry cracked seed coat (DCS), dry de-hulled seed (DDS), soaked seed with complete coat (SSCC), soaked cracked seed coat (SCC) and soaked de-hulled seed (SDS) on the germination percentage and growth indicators of moringa plant. The treatments were replicated eight times in a completely randomized design. The results indicated that DSCC had significantly higher (p=0.05) seed germination percentage than SCC, SSCC, DCS, DDS and SDS by 12, 43.5, 50, 56 and 75%, respectively, at 1 week after sowing (WAS). The trend for vegetative growth was in the order of DCS > DDS > DSCC > SSCC > SDS > SCC at 10 WAS. However, DDS had significantly higher (p=0.05) total biomass weight than DSCC, DCS, SSCC, SCC and SDS on fresh basis by 1.86, 2.17, 2.40, 4.51 and 3.03 g pot-1. Thus, de-hulling dry moringa seeds before sowing could harness optimal biomass production for quick establishment when transplanted to the field. However, this experiment should be carried on a wide range of soil texture, which could affect seed germination and growth performance.

Summary.