نتایج جستجو برای: european pear seedling

تعداد نتایج: 204426  

Journal: :Phytopathology 2007
Todd N Temple Virginia O Stockwell P Lawrence Pusey Kenneth B Johnson

ABSTRACT Phytosanitary concerns about fire blight prohibit export of U.S.-grown pears to some countries without this disease. To examine these concerns, we evaluated the potential for co-occurrence of Erwinia amylovora with mature, symptomless winter pear fruit by inoculation experiments and by survey of commercial orchards. Immature pear and apple fruit were inoculated in orchards with E. amyl...

Journal: :Agriculture 2021

Reducing levels of fruit set is often desirable in many European pear (Pyrus communis L.) cultivars. With a negative linear relationship between crop load and size, management early the season minimises wastage tree carbohydrate resources provides maximum benefits terms size quality. There are several tools available for managing including hand thinning, chemical photosynthetic inhibition throu...

2014
Jiajie Zhang Kassian Kobert Tomás Flouri Alexandros Stamatakis

MOTIVATION The Illumina paired-end sequencing technology can generate reads from both ends of target DNA fragments, which can subsequently be merged to increase the overall read length. There already exist tools for merging these paired-end reads when the target fragments are equally long. However, when fragment lengths vary and, in particular, when either the fragment size is shorter than a si...

2016
Yunpeng Cao Yahui Han Dandan Meng Dahui Li Qing Jin Yi Lin Yongping Cai

Peroxidases (PRXs) are widely existed in various organisms and could be divided into different types according to their structures and functions. Specifically, the Class III Peroxidase, a plant-specific multi-gene family, involves in many physiological processes, such as the metabolism of auxin, the extension and thickening of cell wall, as well as the formation of lignin. By searching the pear...

Journal: :Tree physiology 2016
Akiko Ito Takanori Saito Daisuke Sakamoto Toshihiko Sugiura Songling Bai Takaya Moriguchi

The regulatory mechanisms underlying bud breaking (scale leaf elongation) and flowering in the lateral flower buds of Japanese pear (Pyrus pyrifolia Nakai 'Kosui') are unknown. To more fully characterize these processes, we treated pear trees with different amounts of chilling initiated at different times. Chilling for ∼900 h at 6 °C always induced bud breaking (scale elongation in ≥70% lateral...

اسلام مجیدی, , حشمت الله رحیمیان, , عباس داودی, , مصطفی ولیزاده, ,

The fire blight with the bacterial causal agent, Erwinia amylovora (Burrill) winslow etal. is one of the most important diseases of the pome fruits that causes the economical losses to quince, pear and apple productions, respectively, in some parts of country. To determine the infection severity of the 43 raturally infected pear cultivars in collection of karaj horticulture research division an...

2017
Xi Cheng Manli Li Dahui Li Jinyun Zhang Qing Jin Lingling Sheng Yongping Cai Yi Lin

The content of stone cells has significant effects on the flavour and quality of pear fruit. Previous research suggested that lignin deposition is closely related to stone cell formation. In the lignin biosynthetic pathway, cinnamoyl-CoA reductase (CCR) and cinnamyl alcohol dehydrogenase (CAD), dehydrogenase/reductase family members, catalyse the last two steps in monolignol synthesis. However,...

Journal: :Environmental entomology 2015
A L Knight E Basoalto J Katalin A M El-Sayed

Field studies were conducted in the United States, Hungary, and New Zealand to evaluate the effectiveness of septa lures loaded with ethyl (E,Z)-2,4-decadienoate (pear ester) and (E)-4,8-dimethyl-1,3,7-nonatriene (nonatriene) alone and in combination with an acetic acid co-lure for both sexes of codling moth, Cydia pomonella (L.). Additional studies were conducted to evaluate these host plant v...

2018
Xin Qiao Hao Yin Leiting Li Runze Wang Juyou Wu Jun Wu Shaoling Zhang

Pear is an important fruit crop of the Rosaceae family and has experienced two rounds of ancient whole-genome duplications (WGDs). However, whether different types of gene duplications evolved differently after duplication remains unclear in the pear genome. In this study, we identified the different modes of gene duplication in pear. Duplicate genes derived from WGD, tandem, proximal, retrotra...

2014
Jin Rhyu Min Sook Kim Mi-Kyoung You Mi-Ae Bang Hyeon-A Kim

Obesity occurs when a person's calorie intake exceeds the amount of energy burns, which may lead to pathologic growth of adipocytes and the accumulation of fat in the tissues. In this study, the effect and mechanism of pear pomace extracts on 3T3-L1 adipocyte differentiation and apoptosis of mature adipocytes were investigated. The effects of pear pomace extract on cell viability and the anti-a...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید