Abstract Ditylenchus dipsaci is an economically important plant-parasitic nematode affecting European sugar beets. To date, no beet cultivars carrying resistance against D. are available to farmers. find potentially resistant lines restricting reproduction and penetration of , three consecutive in vivo bioassays were carried out. The first experiment determined the rate 79 breeding 14 pre-breed...

grasspea (lathyrus sativus) is a protein-rich forage legume that contains a neurotoxin (beta-odap) that causes severe malformation of the body’s extremities when eaten in large quantities. various low-toxin lines of grasspea have been developed to reduce the toxin’s concentration in the grain, i.e. to below the 0.2% critical value, but there are indications that zinc (zn) can also reduce the to...

since crosses of lines with suitable genetic distance produce excellent hybrids, the identification of genetic diversity between zea mays l. inbred lines in hybrid maize breeding programs has a high priority. a total of 27 inbred lines plus b73 and mo17 (sc704 parents) were evaluated by 15 inter-simple sequence repeat (issr) primers. inbreds were selected randomly from inbred lines from the agr...

Fennel, or Foeniculum vulgare Mill., is an important horticultural crop belonging to the Apiaceae family that cultivated worldwide and used in agri-food sector for pharmaceutical preparations. Breeding strategies this species usually involve three parental lines, including two maternal lines (one cytoplasmic male-sterile line ideotype representative maintainer line) are crossed obtain of one pa...

Methods We used the breeding birds of the grassland to test the relationship between species declines and a suite of traits associated with decline (such as size, specialization and rarity, as well as distance to edge of a discontinuity, and edge of geographic range) in a stepwise regression with AICc values and bootstrapping via model averaging, followed by a refit procedure to obtain model-av...

Early blight (EB) is one of the dreadful diseases of tomato caused by several species of Alternaria including Alternaria linariae (which includes A. solani and A. tomatophila), as well as A. alternata. In some instances, annual economic yield losses due to EB have been estimated at 79%. Alternaria are known only to reproduce asexually, but a highly-virulent isolate has the potential to overcome...

High temperature reduces the pollen viability and silk receptivity of corn resulting in poor seed set and reduced yield. Continuously increasing temperature and less frequency and distribution of rainfall coupled with usual canal–closure particularly in Pakistan have significantly been decreasing the grain yield. This problem could be overcome by developing heat tolerant maize hybrids. For this...

Two hundred thirty-five cultivated varieties, breeding lines and plant introductions of Arachis hypogaea and 12 accessions of wild Arachis spp. were tested for resistance to Meloidogyne hapla. Eight of the cultivated peanut lines were only moderately susceptible and four of the wild peanuts exhibited resistance. No resistance-breaking M. hapla populations were found among 10 geographical isolat...