Accurate water and fertilizer management are essential in modern high intensity orchard systems to enable the manipulation of both reproductive and vegetative development. Studies have been conducted to establish the annual plant fertilization requirements, of several tree crops but there exists little information regarding the requirements of pear trees on rootstocks of differing vigour. Niney...

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...

Temperate fruit species, originate from regions with cold winters and well-defined climatic seasons. These fruits are also produced in subtropical tropical regions. The aim of this study was to determine the bioactive compounds antioxidant activity different cultivars trees temperate climate, such as peach, pear, quince, fig, able be subtropic Analyzes activity, total phenolics ascorbic acid we...

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...

The article presents preliminary results of studies on the assessment VNIISPK breeding common quince use as an intensive type seedling rootstock for pear cultivation in conditions Central Russia. It was established that is suitable to be used Russian midland and has sufficient winter resistance overground root systems, high yield good compatibility with some varieties. Strong fusion active grow...

Abstract Fire blight caused by Erwinia amylovora reached Kazakhstan in 2008. Here, the disease poses a threat not only to agricultural production of apples and pears, but also forests wild Malus sieversii , progenitor most domesticated apple varieties worldwide. In period 2019–2021, spread fire growth area was limited weather conditions. 2022, late spring early summer were characterized increas...