the first occurrence of two parasitoid species belonging to the family pteromalidae (hym.: chalcidoidea) in alfalfa fields of maragheh (azarbaijan sharghi province) are reported: 1- halticopterina moczari erdã¶s, which was collected in 22 june 2003, and 2- trichomalus rufinus (walker) which was collected in 3 august 2003. both species were collected on medicago sativa by the second author.

. in order to study the variation for seed yield and its components, 200 accessions of alfalfa (medicago sativa l.) were sown as drilled plots, using alpha designs/unreplicated with two repeated entries with in all of 10 blocks under dry land farming system in kabodarahang research station, hamadan, iran, during 2010 to 2011. data were analyzed for descriptive statistics, correlation, regressio...

Abundant data on the effect of flavonoids on spore germination, hyphal growth and root colonization by AMF are available. Moreover, the flavonoid pattern in mycorrhizal roots changes, thus flavonoids have been suggested as arbuscular mycorrhizal signalling compounds. In our work we studied the accumulation of flavonoids in roots of Medicago sativa i) after the exposure of uncolonized roots to s...

The novel food ingredient, alfalfa protein concentrate (APC), consists of a complex of protein (45-60 %), minerals (Ca, Fe, Mg), and vitamins (A, D, E, K). APC is extracted from lucerne (Medicago sativa spp. sativa) also known as alfalfa. Alfalfa is processed to first provide a press juice from which the proteins associated with carotenoid and chlorophyll pigments are separated by heat treatmen...

DL-beta-aminobutyric acid (BABA) is a non-protein amino acid that is an effective inducer of resistance against a variety of plant pathogens. However, examples of BABA-induced resistance against insect herbivores have not been reported. We applied BABA as a soil drench to legumes and monitored its effects on the pea aphid Acyrthosiphon pisum (Harris). On tic bean (Vicia faba var. minor), BABA i...

An assessment was made of the relative contributions of a spontaneous mutation to rifampin resistance and a cryptic plasmid, pTA2, to competitive nodulation of Medicago sativa by a strain of Rhizobium meliloti. This was facilitated by use of rifampin-resistant derivatives of this strain in which pTA2 was originally present, cured, or reintroduced. Both curing of pTA2 and spontaneous mutation to...