Significance of genetic resources of cool season annual legumes, I: Crop wild relatives

GENETIC RESOURCES, CHROMOSOME ENGINEERING, AND CROP IMPROVEMENT Grain Legumes

Back into the wild—Apply untapped genetic diversity of wild relatives for crop improvement

Deleterious effects of climate change and human activities, as well as diverse environmental stresses, present critical challenges to food production and the maintenance of natural diversity. These challenges may be met by the development of novel crop varieties with increased biotic or abiotic resistance that enables them to thrive in marginal lands. However, considering the diverse interactio...

Cassava, Manihot esculenta Crantz, genetic resources: origin of the crop, its evolution and relationships with wild relatives.

About 98 species of Manihot are known. All of them are native to the New World and are concentrated in four regions in Brazil and Central America. All the Manihot species so far examined have 2n = 36 chromosomes. Interspecific hybrids between cassava and its wild relatives show relatively normal meiosis, and further generations can be obtained. Electrophoresis shows affinity among wild species ...

Overseeding Unimproved Warm-Season Pasture with Cool- and Warm-Season Legumes to Enhance Forage Productivity

Nematode response to cool season annual graminaceous species and cultivars.

The response of 29 rye, oat, triticale, and wheat cultivars to selected nematode species was determined in the greenhouse. Variability in nematode root galling and final nematode population densities in root and soil in response to cool season annual graminaceous crops occurred for spiral (Helicotylenchus dihystera), stubby root (Paratrichodorus minor), and root-knot (Meloidogyne incognita) nem...