| |
Web URL(s): | http://www.actahort.org/books/783/783_52.htm Last checked: 06/11/2008 Access conditions: Item is within a limited access website |
Publication Type:
| Report |
Author(s): | Hale, T. C.;
White, R. H.;
Reinert, J. A.;
Snook, M. E. |
Title: | Zoysiagrass (Zoysia spp.) resistance to fall armyworm (Spodoptera frugiperda): Polyphenols and flavonoids ¿ components of resistance |
Meeting Info.: | Proceedings of the II International Conference on Turfgrass Science and Management for Sports Fields: Beijing, China, June 24-29, 2007. |
Source: | Acta Horticulturae. Vol. 783, February 2008, p. 507-517. |
Publishing Information: | Leuven, Belgium: International Society for Horticultural Science |
# of Pages: | 11 |
Keywords: | TIC Keywords: Spodoptera frugiperda; Insect control; Insect resistance; Fertilization rates; Nitrogen fertilization; Zoysia; Polyphenols; Flavonoids
|
Abstract/Contents: | "Leaf tissue collected from six zoysiagrass (Zoysia spp.) cultivars was analyzed for polyphenols and flavonoids by high performance liquid chromatography (HPLC). The experiment investigated the effects of sampling date and N fertilization rate on green leaf chemistry of zoysiagrass and their relationship to fall armyworm (FAW) [Spodoptera frugiperda (J. E. Smith)] resistance. Six zoysiagrasses cultivars {Crowne= (Z. japonica Steud.), Palisades= (Z. japonica Steud.), El Toro= (Z. japonica Steud.), Meyer= (Z. japonica Steud.), Cavalier= [Z. matrella (L.) Merr.], and 'Emerald' (Z. japonica Stued. × Z. tenuifolia Willd. ex Trin.)} were planted in a randomized split-plot design with 4 replicates using cultivars as the main plot and 12.2 and 48.9 kg of N ha-1 month-1 [(NH4)2SO4] as the split plots. Flavonoid concentration decreased as the amount of applied N increased. Flavonoid concentration was greatest in June and steadily declined throughout July and August. Two unidentified flavonoids (luteolin-glycosides) were consistently associated with FAW mortality when analyzed by stepwise regression techniques. Unidentified luteolin 3 had an inverse relationship with mortality, while unidentified luteolin 9 was positively correlated with mortality. Additional research is needed to determine if the concentration of luteolins found in resistant zoysiagrasses are sufficient to cause biocidal activity in FAW." |
Language: | English |
References: | 0 |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Hale, T. C., R. H. White, J. A. Reinert, and M. E. Snook. 2008. Zoysiagrass (Zoysia spp.) resistance to fall armyworm (Spodoptera frugiperda): Polyphenols and flavonoids ¿ components of resistance. Acta Horticulturae. 783:p. 507-517. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=136452 |
| If there are problems with this record, send us feedback about record 136452. |
| Choices for finding the above item: |
| Web URL(s): http://www.actahort.org/books/783/783_52.htm Last checked: 06/11/2008 Access conditions: Item is within a limited access website |
| MSU catalog number: SB 13 .A25 no. 783 |
| Find from within TIC: Digitally in TIC by record number. |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |