Genetic variability is essential for gains in breeding programs. The cyclic process of progeny recombination a strategy to raise the chances selecting better genotype combinations. objective this study was identify superior progenies between common bean genes groups first recurrent selection cycle root system traits. Parents Andean and Middle American gene were hybridized complete diallel schem...

Background: Radon, an invisible, odorless, heaviest (nine times heavier than air) and radioactive gas is an aberration (the only gas in the long decay chain of heavy metal elements). It is ubiquitously present in dwellings and in the environment. Humans receive the greatest radiation dose in their homes. That's where they spend most time - typically 70%, more for small children. Recent worldwid...

The use of open-pollinated seeds from seed orchards is a common strategy for the deployment genetically improved eucalypts, including Eucalyptus globulus, an important pulpwood tree in many temperate climate areas. However, quality can be affected by rate selfing and to lesser extent contamination pollen outside orchard. Inbreeding between related parents especially self-crosses known cause dim...

We assessed the narrow-sense heredity and genetic gains of multiple traits obtained using indirect selection method for progeny Cryptomeria japonica D. Don by artificial crossing. Using stress wave velocity Pilodyn penetration depth as indicative parameters, wood properties could be improved in future generations C. plus trees forest breeding programs will become more efficient. To advance popu...

inhibitory effects of lavandula angustifolia and zataria multiflora essential oils were evaluated on reproduction and f1 progeny production of callosobruchus maculatus. insect’s culture and bioassays were conducted at 29 ±1ºc, 60±5% rh and dark condition. essential oils were taken by hydrodistilation. the results indicated that there was a negative and significant linear relationship between re...

apple is the most important fruits in the world and development of vegetative rootstocks is the priority of our country. to obtain apple rootstocks compatible with soil conditions in iran, many crosses were carried out among native-dwarf genotype (azayesh and morabaee) as female parents and commercial rootstocks (b9, m9, m27) as male parents from 2005 to 2007. primary evaluation of progenies wa...

Vertical transmission of yellow fever virus from orally infected females to their progeny was experimentally demonstrated in 2 Aedes aegypti colonies from the Dakar and Koungheul regions in Senegal. A total of 10,530 F1 adult mosquito progeny were tested. The overall vertical transmission rate was 0.97%, with no significant difference between the Dakar and Koungheul colonies. The infection rate...