Objective: Analyze the production of polyhydroxyalkanoates (PHA) by Bacillus subtilis sp., in submerged culture using pear residues as a carbon source.
 Design/methodology/approach: The consisted residue flour concentrations 5 and 15 % for 72 h. Reducing sugars, biomass, pH, protein, pHA extraction quantification were analyzed during submerging cultivation subtilis
 Results: results s...

Electroimpedance spectroscopy technology can be used to accelerate the healing of complete trees and estimate plant condition after grafting. This approach will allow sorting out low-vigor plants at early stages their development save time resources. Still, in some cases, use electrical impedance difficult due complexity equipment special measurement conditions. In this paper, we attempt overco...

many characteristics of pear trees such as growth, fruit size and yield, are influenced by the genetic characteristic of the rootstocks. in iran, mainly european pear seedlings (pyrus communis l.) are used as the rootstock in the pear orchards. thus, evaluation of pear seedling rootstocks is an important task. this experiment was conducted in 2009 and 2010 growing seasons in order to explore th...

A cultivation-independent approach based on polymerase chain reaction (PCR)-amplified partial small subunit rRNA genes was used to characterize bacterial populations in the surface soil of a commercial pear orchard consisting of different pear cultivars during two consecutive growing seasons. Pyrus communis L. cvs Blanquilla, Conference, and Williams are among the most widely cultivated cultiva...

Polymerase chain reaction (PCR)-based detection strategies were adopted to examine the etiology and vectorship of pear decline in Taiwan (PDTW). 16S rDNA sequences were amplified from total DNAs prepared from PDTW-affected pear trees Pyrus serotina Rehd. cv. Hengshan and pear psyllid Cacopsylla chinensis using PCR. According to the sequence analyses, C. chinensis carried phytoplasmas of two 16S...

Abstract Studies were conducted in apple, Malus domestica Borkhausen and pear, Pyrus communis L. (Rosales: Rosaceae), orchards to evaluate the attractiveness of grey halobutyl septa loaded with 1 (L2) and 10 (Mega) mg of codlemone, 8E, 10E-dodecadien-1-ol, 3 mg of pear ester, ethyl (E,Z)-2,4-decadienoate (DA2313), and 3 mg of pear ester plus 3 mg of codlemone (Combo) to adult codling moth, Cydi...