In the years 1943-1948 garden types of common bean were collected in backyard gardens by F.F. Nijdam. Mostly each grower obtained the seeds from his or her parents and passed them on to their children. Nijdam studied his collection and classified the accessions into six groups. These groups have been described. The present paper was…

Het areaal gebruikt voor nutstuinen of “boerentuinen“ is vele malen groter dan die van kastelen- en, kloostertuinen. Toch wordt vooral de geschiedenis van de laatste afgebeeld en bestudeerd, terwijl die van de “boerentuinen” weinig aandacht krijgt. Uitwisseling van kennis en plantmateriaal tussen de gebruikers van verschillende typen tuinen moet, net als nu, hebben plaats gevonden….

Landraces of crops are difficult to describe. Since 1890 attempts have been made. Maybe the following definition is the best: an autochthonous landrace is a variety with a high capacity to tolerate biotic and abiotic stress resulting in a high yield stability, and an intermediate yield level under a low input agicultural system. Lees of…

Strandwallen ontstonden 1000den jaren geleden. Tussen de duinen en de jongste strandwal en tussen strandwallen ontstonden beekjes die het water afvoerden. Zij liggen op de laagste plekken tussen de strandwallen. Deze beekjes zijn later gekanaliseerd om het water af te voeren en ze bevaarbaar te maken. Deze kanalisatie moet in de Middeleeuwen hebben plaats gevonden….

Near the at-that-time hamlet Nung Udoh in Ibibio-land (now Akwa-Ibom State), south of Uyo,  South-East-Nigeria I observed in the period 1959-1964 celtic fields (in Dutch prehistoric raatakkers). I have described the origin of the Nung-Udoh raatakkers as they could have originated in the same way in prehistoric Netherlands. An important factor in Nigeria was and…

The spread of bread wheat in the Old World (Europe, Asia, Africa) since the Neolithicum as shown by the distribution of two necrosis genes and their alleles was studied. As basic material 1130 bread wheat landraces were investigated. Based on this distribution the routes by which bread wheat migrated are shown. The original spread was…

The history of the medieval vegetable gardens of the common man and woman: the poorness of descriptions and pictures In search of depictions of medieval vegetables, a study of medieval vegetable gardens of the common men and women was made. These gardens commonly occurred, but as they were probably too vulgar they were not described…