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Weed Seed Germplasm Collection 1964-2014 Of The Weed Biology Laboratory, Jack Dekker Mar 2014

Weed Seed Germplasm Collection 1964-2014 Of The Weed Biology Laboratory, Jack Dekker

Jack Dekker

J. Dekker weed seed germplasm collection; including: Lots 1-3974: 1964-2014; main seed library listed by lot numbers. Lots 649-1457: 1989 all-Iowa Setaria transect study. Lots 1762-1812: 1981; Diane Manthey, North Dakota St. Univ., Setaria collection at Bob Anderson's (USDA, Univ. of Minn) 1960's wild oat study sites. Lots 2389-2595: 1992 north temperate world collection (Japan, Russia, Europe) by J. Dekker. Lots 3270-3685: 1993 Brent Reschly transect study of eastern Iowa conventional and Amish farmers. Lots 3786-3962: 2000 J. Dekker 2000 salt-tolerant Setaria of southern Japan collection. All seed in all these collections belong, and were collected and archived by Jack …


Insect Visitation Of Peduncular And Petiolar Extrafloral Nectar Glands On Castor Bean (Ricinus Communis L.) Plants In Southern California, Victor D. Carmona Dec 2013

Insect Visitation Of Peduncular And Petiolar Extrafloral Nectar Glands On Castor Bean (Ricinus Communis L.) Plants In Southern California, Victor D. Carmona

Victor D. Carmona-Galindo

Castor bean (Ricinus communis L.) is a myrmecophytic plant species with specialized extrafloral nectar (EFN) glands that serve to attract predatory insects, which in return defend plant-tissues against herbivores. The EFN glands on castor bean plants are located along the leaf petioles as well as on the peduncles of its imperfect (unisexual) flowers. This field-project evaluates the richness, diversity, and species assemblage of insects visiting EFN glands located on (female and male) flower peduncles and leaf petioles on castor bean plants growing in a Southern California coastal landscape. We detected that EFN glands on female-flower peduncles were visited by an …