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Journal articles on the topic 'Asian pear'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

WOLF, Jan, Kateřina BARÁNKOVÁ, and Tomáš NEČAS. "AFLP Molecular Identification and Genetic Relationship of Chinese and Japanese Pear Cultivars Grown in Middle European Conditions." Notulae Botanicae Horti Agrobotanici Cluj-Napoca 45, no. 2 (2017): 369–74. http://dx.doi.org/10.15835/nbha45210875.

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In this study, 30 genotypes of genus Pyrus (five European cultivars, 16 Asian cultivars, three rootstocks, four interspecific hybrids, one landrace cultivar from Czech Republic (‘Krvavka’), Pyrus betulaefolia Bunge. and one intergeneric hybrid (Cydomalus)) were tested using AFLP markers. Twelve primer combinations generated a number of 1251 fragments of which 1064 were polymorphic with an average polymorphism of 85.3%. The dendrogram, created by using the UPGMA method, revealed a distinct genetic relationship between European and Asian pear groups. The intergeneric hybrid Cydomalus was separat

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2

Walsh, Christopher S., Julia M. Harshman, Anna E. Wallis, Amy Barton Williams, Michael J. Newell, and George R. (G R. ). Welsh. "Asian Pear: A Potential Alternative Fruit Crop for Growers in the Mid-Atlantic Region." HortScience 51, no. 11 (2016): 1325–28. http://dx.doi.org/10.21273/hortsci10526-16.

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Production of european pears (Pyrus communis L.) in the eastern United States is limited by a number of physiological and pathological problems. In an attempt to expand sustainable pear production in that region, a series of long-term field trials of asian pear [Pyrus pyrifolia (Burm. F) Nak. (syn. Pyrus serotina L.)] were established at two sites in Maryland. To compare precocity, productivity, and survival, nine asian pear cultivars and three European cultivars were planted in a replicated trial in 2010 at the Wye Research and Education Center (Wye REC). The asian pears were precocious and p

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3

Mohd Nazri, Mursyida, Leony Tham Yew Seng Yew Seng, and Nurhanan Abdul Rahman. "Physicochemical, antioxidative and sensory properties of pre-treated sliced pear cultivar during frozen storage." Journal of Tropical Resources and Sustainable Science (JTRSS) 10, no. 2 (2022): 35–40. http://dx.doi.org/10.47253/jtrss.v10i2.1005.

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Pear is a typical fruit of temperate zones with high nutritive values and organoleptic properties, but when this fresh fruit being harvested, it will undergo chemical changes which can cause spoilage and product deterioration. Freezing could be as a preservative method to maintain quality attributes (colour, texture) of fresh produce that change over time. The purpose of this study is to determine ascorbic acid content and antioxidant activity of frozen fruit treated with osmotic solution. Pears were pre-treated with blanching, osmotic and both blanching and osmotic solution prior to freezing.

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4

Prokchorchik, Maxim, Kyungho Won, Yoonyoung Lee, Eu Ddeum Choi, Cécile Segonzac, and Kee Hoon Sohn. "High Contiguity Whole Genome Sequence and Gene Annotation Resource for Two Venturia nashicola Isolates." Molecular Plant-Microbe Interactions® 32, no. 9 (2019): 1091–94. http://dx.doi.org/10.1094/mpmi-03-19-0072-a.

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Venturia nashicola is a fungal pathogen that causes Asian pear scab disease. This pathogen is of particular importance in Northeast Asian countries, where Asian pears are grown industrially. Scab disease in Asian pear is currently controlled by fungicide spraying and this situation calls for developing scab resistant cultivars. High-quality genome data are therefore required for in-depth comparative genome analysis of different isolates of V. nashicola and V. pyrina, a closely related species, which only infects European pear plants. Here, we report the high-contiguity whole genome assembly of

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5

BIENIASZ, Monika, Tomas NECAS, Ewa DZIEDZIC, Ivo ONDRASEK, and Bożena PAWŁOWSKA. "Evaluation of Pollen Quality and Self-Fertility in Selected Cultivars of Asian and European Pears." Notulae Botanicae Horti Agrobotanici Cluj-Napoca 45, no. 2 (2017): 375–82. http://dx.doi.org/10.15835/nbha45210877.

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Asian pears have become increasingly popular in the European market, but their cultivation history in Europe is rather short. Pear is a demanding species in terms of pollen – donor cultivar. The self-fertility phenomenon in Asian pear cultivars is not currently known. The study was conducted in a 6-year pear orchard (of 23 Asian and 5 European cultivars) at the Mendel University in Lednice (Czech Republic). The following traits were assessed: number of pollen grains, pollen viability, pollen grain germination, self-fertility and the pollen germination index (PGI). European cultivar – ‘Clapp’s

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6

Park, P., H. Ishii, Y. Adachi, S. Kanematsu, H. Ieki, and S. Umemoto. "Infection Behavior of Venturia nashicola, the Cause of Scab on Asian Pears." Phytopathology® 90, no. 11 (2000): 1209–16. http://dx.doi.org/10.1094/phyto.2000.90.11.1209.

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The infection of Japanese pear by Venturia nashicola, the cause of scab on Asian pears (Japanese pear, Pyrus pylifolia var. culta; Chinese pear, P. ussuriensis), was examined using light and electron microscopy to determine the mechanism of resistance in pears. Early stages of infection were similar on the susceptible cv. Kosui, the resistant cv. Kinchaku, and the nonhost European pear (P. communis) cv. Flemish Beauty. V. nashicola penetrated only the cuticle layer on pear leaves and formed subcuticular hyphae on all three cultivars. Hyphae were localized in the pectin layer of pear leaves and

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7

Peterson, R. M., and J. R. Waples. "‘Gourmet’ Pear." HortScience 23, no. 3 (1988): 633. http://dx.doi.org/10.21273/hortsci.23.3.633.

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Abstract ‘Gourmet’ is a dessert pear (Pyrus sp.) which combines many characteristics of Asian [P. ussuriensis Maxim, P. pyrifolia (Burm.) Nak.] and European (P. communis L.) pears. It is cold hardy and is suggested for planting in areas immediately north of where high quality pear cultivars generally are grown.

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8

Zhang, Maojun, Lihua Ding, Qiang Wang, Meiqi Feng, and Shahrokh Khanizadeh. "‘Hanhong’ Pear." HortScience 42, no. 2 (2007): 397–416. http://dx.doi.org/10.21273/hortsci.42.2.397.

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‘Hanhong’ (Pyrus ussuriensis Maxim × P. bretschneideri Rehd.) is a new high-quality Asian pear with excellent firmness and crispness and a long shelf life. Fruit of ‘Hanhong’ are very attractive and the tree is very winter-hardy. The fruit and leaves are resistant to pear scab (Venturia pirina Aderh) and black spot (Alternaria kikuchiana Tannka) disease.

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9

Johnson, Shakira, Dan Jones, Amali H. Thrimawithana, et al. "Whole Genome Sequence Resource of the Asian Pear Scab Pathogen Venturia nashicola." Molecular Plant-Microbe Interactions® 32, no. 11 (2019): 1463–67. http://dx.doi.org/10.1094/mpmi-03-19-0067-a.

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Venturia nashicola, the cause of scab disease of Asian pears, is a host-specific, biotrophic fungus. It is restricted to Asia and is regarded as a quarantine threat outside this region. European pear displays nonhost resistance (NHR) to V. nashicola and Asian pears are nonhosts of V. pyrina (the cause of European pear scab disease). The host specificity of these two fungi is likely governed by differences in their effector arsenals, with a subset hypothesized to activate NHR. The Pyrus-Venturia pathosystem provides an opportunity to dissect the underlying genetics of nonhost interactions in th

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10

Abe, Kazuyuki, Kazuo Kotobuki, Toshihiro Saito, and Osamu Terai. "Inheritance of Resistance to Pear Scab from European Pears to Asian Pears." Engei Gakkai zasshi 69, no. 1 (2000): 1–8. http://dx.doi.org/10.2503/jjshs.69.1.

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11

Niu, Yingying, Weiquan Zhou, Xiangying Chen, Guoquan Fan, Shikui Zhang, and Kang Liao. "Genome size and chromosome ploidy identification in pear germplasm represented by Asian pears - Local pear varieties." Scientia Horticulturae 265 (April 2020): 109202. http://dx.doi.org/10.1016/j.scienta.2020.109202.

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12

Grijalva-Contreras, Raul Leonel, Victor Avilez-Peraza, Adan Fimbres-Fontes, Ruben Macias-Duarte, and Jose L. Miranda-Blanco. "Evaluation of Different Pear Cultivars in Northwest Mexico." HortScience 32, no. 3 (1997): 474D—474. http://dx.doi.org/10.21273/hortsci.32.3.474d.

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Pear production in Mexico is low; there are about 4500 ha. One of the main problems in this tree fruit is the unknown number of new varieties for each area. The objective of this study was to evaluate 23 common pear cultivars and seven Asian pears. The experiment was carried out at the Experimental Station “El Tasicuri” of Magdalena, Sonora, Mexico. The trees were planted in 1990 on Pyrus calleryana rootstock. The main results were that common pears were not adapted to the area because of the lack of cold weather; however, `Bartlett' was the only cultivar that was adapted. Asian pears showed g

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13

HUDINA, Metka, and Franci ŠTAMPAR. "Free sugar and sorbitol content of pear cultivars (Pyrus communis L. and Pyrus serotina Rehd.)." Acta agriculturae Slovenica 75, no. 1 (2000): 109–14. http://dx.doi.org/10.14720/aas.2000.75.1.15832.

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The fruit free sugar content, sorbitol and soluble solids of seventeen European pear cultivars (Pyrus communis L.) and four Asian pear cultivars (Pyrus serotina Rehd.) grown in Slovenia were determined. Pear fruits contain mostly fructose and sorbitol. The smallest contents of glucose and sucrose are in the cvs. 'Williams Bon Chrétien’, ‘Red Williams’ and ‘Rosired’. Asian pear cultivars contain on average more total sugars, especially glucose, in comparison to the European pear cultivars. Considerable differences of individual sugars contents were determined between various cultivars.

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14

Takeoka, Gary R., Ron G. Buttery, and Robert A. Flath. "Volatile constituents of Asian pear (Pyrus serotina)." Journal of Agricultural and Food Chemistry 40, no. 10 (1992): 1925–29. http://dx.doi.org/10.1021/jf00022a040.

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15

Villalta, O. N., W. S. Washington, G. R. McGregor, S. M. Richards, and S. M. Liu. "RESISTANCE TO PEAR SCAB IN EUROPEAN AND ASIAN PEAR CULTIVARS IN AUSTRALIA." Acta Horticulturae, no. 694 (October 2005): 129–32. http://dx.doi.org/10.17660/actahortic.2005.694.19.

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16

Uddin, W., K. L. Stevenson, R. A. Pardo-Schultheiss, and S. A. Rehner. "Pathogenic and Molecular Characterization of Three Phomopsis Isolates from Peach, Plum, and Asian Pear." Plant Disease 82, no. 7 (1998): 732–37. http://dx.doi.org/10.1094/pdis.1998.82.7.732.

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Three isolates of Phomopsis, causing shoot blight of peach, shoot tissue necrosis of plum, or bud death of Hosui Asian pear, respectively, were evaluated for their pathogenicity on apple, pear, peach, and plum. Current year's shoots of 1-year-old Stayman Winesap apple, Barlett pear, Babygold-7 peach, and Bruce plum trees were inoculated with each isolate by wounding a bud and applying agar blocks bearing young hyphae. The length of cankers on shoots was measured 10, 17, and 24 days after inoculation. Cankers developed on shoots of all hosts inoculated with the peach isolate and on peach shoots

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17

Fallahi, Esmaeil, Bahar Fallahi, Michael J. Kiester, and Shahla Mahdavi. "The Performance and Quality of Three Alternative Fruits in the Intermountain West Region of the United States." HortScience 51, no. 11 (2016): 1320–24. http://dx.doi.org/10.21273/hortsci10567-16.

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Adaptability and feasibility of table grape (Vitis vinifera or Vitis labrusca), asian pear (Pyrus pyrifolia), and quince (Cydonia oblonga) production under the high desert conditions of southwest Idaho in the Intermountain West region of the United States were studied. ‘Alborz’ table grape was harvested between 1 and 15 Sept. and with proper thinning, this cultivar had outstanding clusters and berries and could be a successful table grape for planting at commercial scales in warmer spots under conditions of this study. ‘Kashishi’ and ‘Autumn Royal’ were late-season cultivars and had large berr

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18

Song, Jae-Young, Jinjoo Bae, Young-Yi Lee, et al. "High-Efficiency In Vitro Root Induction in Pear Microshoots (Pyrus spp.)." Plants 13, no. 14 (2024): 1904. http://dx.doi.org/10.3390/plants13141904.

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Extensive research has been conducted on the in vitro mass propagation of pear (Pyrus spp.) trees through vegetative propagation, demonstrating high efficiency in shoot multiplication across various pear species. However, the low in vitro rooting rates remain a significant barrier to the practical application and commercialization of mass propagation. This study aims to determine the favorable conditions for inducing root formation in the in vitro microshoots of Pyrus genotypes. The base of the microshoots was exposed to a high concentration (2 mg L−1) of auxins (a combination of IBA and NAA)

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19

Híc, Pavel, Jarmila Kožíšková, Petra Omastová, Josef Balík, Jan Goliáš, and Miroslav Horák. "Physiochemical Changes of European Pear cv. Conference and Asian Pear cv. Yali during Cold Storage." Horticulturae 9, no. 3 (2023): 378. http://dx.doi.org/10.3390/horticulturae9030378.

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This study evaluated the physiochemical changes of one commercial European pear variety ‘Conference’ and one Asian pear variety ‘Yali’ during 60 days of storage at 1 °C. Content of organic acids, ethylene and formation of CO2 were determined using HPLC/UV-VIS and GC/FID and TCD detectors, respectively. This study presents an evaluation of the influence of the above-mentioned factors and long-term storage on quality parameters, including the antioxidant capacity of an important European and Asian pear cultivar. There was a significant effect of temperature on respiration rate in both varieties.

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20

Lin, Hsin-Shan, and Chien Yi Wang. "667 Off-season Production of Horticultural Crops." HortScience 35, no. 3 (2000): 513D—513. http://dx.doi.org/10.21273/hortsci.35.3.513d.

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Off-season production of several tropical and subtropical fruits has been successfully practiced commercially in Taiwan. By combining pruning, removal of leaves, and application of growth regulators, it is possible to have two to three crops of grapes per year. By grafting the chilled scions of temperate Asian pear onto the water shoots of low-chilling native pear varieties, it is possible to produce high-quality Asian pears (temperate-origin) in a subtropical environment. By using techniques such as root-pruning, flooding, and application of growth inhibitors, it is possible to induce flower

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21

Renquist, A. Richard, Horst W. Caspari, and David J. Chalmers. "ASIAN PEAR (NASHI) TREE WATER RELATIONS IN LYSIMETERS." HortScience 27, no. 6 (1992): 572f—572. http://dx.doi.org/10.21273/hortsci.27.6.572f.

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Nashi pear (Pyrus serotina Rehder, cv. Hosui) trees were planted in 12 computerized 1m-wide drainage lysimeters in September 1987. During the 1990 season tree water use was monitored via lysimeter and neutron probe readings. Diurnal leaf water relations were studied using a pressure chamber for water potential (ψ) and a porometer for leaf conductance (gs). Xylem sap trunk flow velocities were measured with an experimental heat pulse device and converted to xylem flux. Close agreement existed between 24 hr xylem flux and lysimeter water use when comparing trees with different soil water content

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22

Griffiths, Kathleen M., Mohammad H. Behboudian, and Melanie Dingle. "IRRIGATION MANAGEMENT AND FRUIT QUALITY IN ASIAN PEAR." HortScience 27, no. 6 (1992): 627a—627. http://dx.doi.org/10.21273/hortsci.27.6.627a.

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Asian pear (Pyrus serotina Rehder) is endemic to southern China, Korea and Japan where it is an important fruit. Recent introduction into New Zealand has necessitated research to achieve high fruit quality. In this experiment three irrigation treatments were imposed on the cultivar Nijisseiki and the effect on fruit quality and storage life assessed. They were: a control for which soil water was maintained at 85% of field capacity (FC), “field” receiving only rainfall, and regulated deficit irrigation (RDI) in which soil water was depleted to 50% FC until rapid fruit growth started and then tr

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23

Kimura, Tetsuya, Yong Zhong Shi, Moriyuki Shoda, et al. "Identification of Asian Pear Varieties by SSR Analysis." Breeding Science 52, no. 2 (2002): 115–21. http://dx.doi.org/10.1270/jsbbs.52.115.

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24

Cengiz, Nurten, and Leyla Ercan. "Antioxidant Capacity and Bioactive Ingredients of Asian Pear." Osmaniye Korkut Ata Üniversitesi Fen Bilimleri Enstitüsü Dergisi 7, no. 4 (2024): 1795–812. http://dx.doi.org/10.47495/okufbed.1450397.

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The combinations of soluble sugars, organic acids, and volatile organic compounds (VOCs) are crucial for how food is perceived and accepted. In order to evaluate the volatile organic compounds (VOCs) in Asian pears (Pyrus pyrifolia), headspace solid-phase microextraction (HS-SPME) was combined with gas chromatography-mass spectrometry (GC-MS) in this study. Among the 19 aroma compounds identified in the study conducted with a PDMS fiber, acetaldehyde and ethanol were found to be the most abundant. In addition, two more significant organic acids found in Asian pears were found to be malic acid

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25

Barbosa, W., I. M. Murata, A. F. C. Tombolato, L. M. M. Meletti, and R. F. A. Veiga. "ASIAN PEAR BREEDING FOR SUBTROPICAL AREAS OF BRAZIL." Acta Horticulturae, no. 864 (June 2010): 81–86. http://dx.doi.org/10.17660/actahortic.2010.864.10.

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26

Moriguchi, Takaya, Kazuyuki Abe, Tetsuro Sanada, and Shohei Yamaki. "Levels and Role of Sucrose Synthase, Sucrose-phosphate Synthase, and Acid Invertase in Sucrose Accumulation in Fruit of Asian Pear." Journal of the American Society for Horticultural Science 117, no. 2 (1992): 274–78. http://dx.doi.org/10.21273/jashs.117.2.274.

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Soluble sugar content and activities of the sucrose-metabolizing enzymes sucrose synthase (SS) (EC 2.4.1.13), sucrose-phosphate synthase (SPS) (EC 2.4.1.14), and acid invertase (EC 2.4.1.26) were analyzed in the pericarp of fruit from pear cultivars that differed in their potential to accumulate sucrose to identify key enzymes involved in sucrose accumulation in Asian pears. The Japanese pear `Chojuro' [Pyrus pyrifolia (Burro. f.) Nakai] was characterized as a high-sucrose-accumulating type based on the analysis of mature fruit, while the Chinese pear `Yali' (P. bretschneideri Rehd.) was a low

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27

Walsh, C. S., A. J. Barton, M. Newell, and G. R. Welsh. "Long-term Performance of Asian Pear Trees in Maryland." HortScience 33, no. 3 (1998): 548b—548. http://dx.doi.org/10.21273/hortsci.33.3.548b.

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Three Asian pear plantings were set during the past decade. Plantings included an initial cultivar planting on OH × F rootstock, the SE Zonal planting, and a rootstock by cultivar factorial. Fireblight susceptibility and survival were assessed in the first two plantings following a summer hailstorm. Trees were compared to Magness, a blight-tolerant buttery pear. Shin Li, Daisu Li, Shinsui, and Olympic were more resistant than Magness, while Chojuro and Niitaka were nearly as tolerant. Eleven other cultivars showed greater field-susceptibility. The most-susceptible cultivars were Ya Li and Ts'e

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28

Ghosh, Ashok K., Lewis N. Lukens, David M. Hunter, and Judith N. Strommer. "European and Asian Pears: Simple Sequence Repeat–Polyacrylamide Gel Electrophoresis-based Analysis of Commercially Important North American Cultivars." HortScience 41, no. 2 (2006): 304–9. http://dx.doi.org/10.21273/hortsci.41.2.304.

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The genus Pyrus (pear) includes species and cultivars of great diversity. We have tested the feasibility of a polyacrylamide gel eletrophoresis (PAGE)-based +/– simple sequence repeat (SSR) screen as a means of defining relationships amongst pears of commercial importance in North America. The screen included 28 pear accessions, including economically important cultivars, numbered selections from breeding programs and interspecific hybrids. It relied on 18 SSR primer pairs, each of which produced polymorphic banding patterns in all the genotypes examined. Fragments were scored for presence or

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29

Finn, Chad E., and John R. Clark. "Register of New Fruit and Nut Cultivars List 44." HortScience 43, no. 5 (2008): 1321–43. http://dx.doi.org/10.21273/hortsci.43.5.1321.

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Crop Listingsz: Almond, Almond Rootstock, Apple, Apricot, Apricot Rootstock, Blackberry, Blueberry, Cherry Rootstock, Cherry—Sweet, Currant, Grape, Hazelnut, Nectarine, Pawpaw, Peach, Peach Rootstock, Pear—Asian, Pear—European, Pecan, Persian Walnut, Plum and Plum Hybrids, Plum Rootstock, Raspberry, Strawberry

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Faoro, I. D. "New Asian pear cultivar developed in Brazil: ‘SCS421 Carolina’." Acta Horticulturae, no. 1303 (January 2021): 121–26. http://dx.doi.org/10.17660/actahortic.2021.1303.18.

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31

Lin, H., C. Lee, and C. Lin. "PRODUCTION OF HIGH CHILLING ASIAN PEAR IN TAIWAN'S LOWLAND." Acta Horticulturae, no. 199 (August 1987): 101–8. http://dx.doi.org/10.17660/actahortic.1987.199.25.

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32

Thibault, B., A. Masseron, A. Belouin, and E. Dalle. "FIRST INFORMATION ABOUT TWO ASIAN PEAR COLLECTIONS IN FRANCE." Acta Horticulturae, no. 256 (October 1989): 23–34. http://dx.doi.org/10.17660/actahortic.1989.256.1.

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33

Reighard, G. L., D. R. Ouellette, and K. H. Brock. "FIELD PERFORMANCE OF ASIAN PEAR CULTIVARS IN SOUTH CAROLINA." Acta Horticulturae, no. 800 (October 2008): 315–18. http://dx.doi.org/10.17660/actahortic.2008.800.38.

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Barbosa, W., R. F. A. Veiga, C. V. Pommer, R. Pio, and E. A. Chagas. "ASIAN PEAR BREEDING IN BRAZIL: CHARACTERIZATION OF NEW SELECTIONS." Acta Horticulturae, no. 800 (October 2008): 503–6. http://dx.doi.org/10.17660/actahortic.2008.800.64.

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35

Barbosa, Wilson, Celso Valdevino Pommer, Antonio Fernando Caetano Tombolato, et al. "Asian pear tree breeding for subtropical areas of Brazil." Fruits 62, no. 1 (2007): 21–26. http://dx.doi.org/10.1051/fruits:2006045.

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36

Molenda, E., E. Pitera, and A. Mikuła. "SUSCEPTIBILITY OF ASIAN PEAR CULTIVARS AND 'CONFERENCE' PEAR TO APPLE BLOSSOM WEEVIL (ANTHONOMUS POMORUM L.)." Acta Horticulturae, no. 814 (March 2009): 831–34. http://dx.doi.org/10.17660/actahortic.2009.814.141.

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37

Pacumbaba, Rodulfo O., and Caula A. Beyl. "Mortality of First-year Plantings of Selected Asian Pear in Northern Alabama." HortScience 31, no. 4 (1996): 700a—700. http://dx.doi.org/10.21273/hortsci.31.4.700a.

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The growing popularity of Asian pears in the open market has generated a need for more information about their fireblight resistance and stress tolerance. In 1994, Alabama A&M Univ. established a large research planting of 10 cultivars of Asian pear on three different rootstocks. The cultivars included Kosui, Korean Giant, 20th Century, Hosui, Shinko, Ichiban Nashi, Shinseiki, Chojuro, Okusankichi, and Shinsui. The three rootstocks used were Pyrus betulaefolia, Pyrus calleryana, and Old Home × Farmingdale 333. The planting was arranged as a randomized complete block replicated 10 times wit

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38

Jiang, Shuang, Xiaoqing Wang, Chunhui Shi, and Jun Luo. "Genome-Wide Identification and Analysis of High-Copy-Number LTR Retrotransposons in Asian Pears." Genes 10, no. 2 (2019): 156. http://dx.doi.org/10.3390/genes10020156.

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A large proportion of the genome of ‘Suli’ pear (Pyrus pyrifolia) contains long terminal repeat retrotransposons (LTR-RTs), which suggests that LTR-RTs have played important roles in the evolution of Pyrus. Further analysis of retrotransposons, particularly of high-copy-number LTR-RTs in different species, will provide new insights into the evolutionary history of Pyrus. A total of 4912 putative LTR-RTs classified into 198 subfamilies were identified in the ‘Suli’ pear genome. Six Asian pear accessions, including cultivars and wild species, were resequenced. The comparison of copy number for e

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39

Nečas, Tomáš, Jan Wolf, Tomáš Kiss, Martina Gottingerová, Ondrášek Ivo, and Monika Bieniasz. "Evaluation of certain pomological and phenological traits of selected asian pear varieties growing in Middle European conditions." Horticultural Science 47, No. 2 (2020): 81–92. http://dx.doi.org/10.17221/83/2019-hortsci.

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The cultivation and breeding of new pear tree varieties have great potential, especially with the changing climate. The introduction of genetic resources and varieties from regions with a high genetic diversity can have a positive effect on the cultivation of pear trees in our region. In this experiment, a total of 23 Asian pear varieties originating from Japan and China were assessed. Based on the values obtained, the varieties were sorted, and suitable varieties for the conditions of the Czech Republic were selected. The early-maturing varieties that proved to be promising were ‘Shinseiki’ a

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40

Bell, Richard L., and L. Claire Stuart. "MORTALITY AND DEVELOPMENT OF PEAR PSYLLA NYMPHS ON EAST EUROPEAN PEAR GERMPLASM." HortScience 25, no. 9 (1990): 1131d—1131. http://dx.doi.org/10.21273/hortsci.25.9.1131d.

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Four genotypes of pear (Pyrus spp.) of East European origin, a susceptible control, `Bartlett' (P. communis L.), and a moderately resistant control, NY 10352 (P. ussuriensis Maxim. × P. communis B C1 hybrid), were artificially infested with pear psylla (Cacopsyll a pyricol a Foerster) nymphs in the laboratory. Ten neonate first instars were placed on each of the two youngest leaves of four small trees per genotype. On PI 506381 and PI 506382, wild seedlings of P. nivalis Jacq., all nymphs died within 5 days. Mortality and development of nymphs on PI 502173, a wild P. communis seedling, was sim

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Reginato, G., and A. Rojas. "SURVEY OF CHEMICAL FRUIT THINNERS FOR ASIAN PEAR CV. HOSUI." Acta Horticulturae, no. 475 (September 1998): 265–74. http://dx.doi.org/10.17660/actahortic.1998.475.32.

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Kim, W. S., S. Jock, K. Geider, et al. "CHARACTERIZATION OF A NEW ERWINIA SPECIES AFFECTING ASIAN PEAR TREES." Acta Horticulturae, no. 489 (July 1999): 201–8. http://dx.doi.org/10.17660/actahortic.1999.489.31.

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Teng, Y., P. Yu, S. Bai, and S. Jiang. "The origin of Asian pear cultivars inferred from DNA markers." Acta Horticulturae, no. 1308 (April 2021): 1–6. http://dx.doi.org/10.17660/actahortic.2021.1308.1.

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Arzani, K. "INTRODUCTION OF SOME ASIAN PEAR CULTIVARS (PYRUS PYRIFOLIA) TO IRAN." Acta Horticulturae, no. 596 (December 2002): 287–90. http://dx.doi.org/10.17660/actahortic.2002.596.45.

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Jiang, Gui-Hun, Sun-Hee Yim, and Jong-Bang Eun. "Physicochemical characteristics and antioxidant activities of new Asian pear cultivars." Journal of Applied Biological Chemistry 59, no. 4 (2016): 337–43. http://dx.doi.org/10.3839/jabc.2016.057.

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Arzani, K. "PROGRESS IN THE NATIONAL ASIAN PEAR PROJECT: A STUDY ON THE ADAPTATION OF SOME ASIAN PEAR (PYRUS SEROTINA REHD) CULTIVARS TO IRANIAN ENVIRONMENTAL CONDITIONS." Acta Horticulturae, no. 671 (April 2005): 209–12. http://dx.doi.org/10.17660/actahortic.2005.671.27.

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Singh, Rishan. "Pointers on Harvesting Pears (Pyruscommunis L. and Pyruspyrifolia) in Moderate to Cold Climates." Bulletin of Pure & Applied Sciences- Botany 42, no. 2 (2024): 99–101. http://dx.doi.org/10.48165/bpas.2023.42b.2.5.

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Pyruscommunis is a fruit that has its origins in China and Asia. It is a plant that is characterised by delicious, soft, fruits that are edible throughout the world. It is a known fact that this fruit grows well in temperate regions. In the USA, Pyruspyrifolia is another variety that's grown successfully. Some Asian pear varieties include Chinese Sand pear, Apple pear, Patharnakh and Gola pear, and these differ from each other in shape and colour. The purpose of this paper is to address pointers on harvesting Pyruscommunis L and P. pyrifolia in moderate to cold climates.

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Brewer, L., P. Alspach, and V. Bus. "FRUIT AND LEAF INCIDENCE OF PEAR SCAB (VENTURIA PIRINA ADERH.) IN MIXED EUROPEAN AND ASIAN PEAR PROGENIES." Acta Horticulturae, no. 671 (April 2005): 595–600. http://dx.doi.org/10.17660/actahortic.2005.671.83.

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Jones, T., J. Strang, G. Brown, and P. Wolfe. "SITE EFFECTS ON SUSCEPTIBILITY OF ASIAN PEARS TO FIRE BLIGHT." HortScience 27, no. 11 (1992): 1169a—1169. http://dx.doi.org/10.21273/hortsci.27.11.1169a.

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Kentucky is one of seven states in the southeast evaluating 13 Asian pear cultivars for suitability to the region. The cultivars were planted on a (20′ × 10′) spacing in 1989 at three separate locations. Data on time of bloom, tree growth, fire blight susceptibility and fruit quality and yield were collected. This study demonstrates the variability seen in Asian pear cultivars in response to site. There was a significant site by cultivar interaction for fire blight. The Princeton site had significantly more fire blight than either Lexington or Quicksand. Four cultivars, Niitaka, Shin Li, Shink

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De Belie, Nele, Ian C. Hallett, F. Roger Harker, and Josse De Baerdemaeker. "Influence of Ripening and Turgor on the Tensile Properties of Pears: A Microscopic Study of Cellular and Tissue Changes." Journal of the American Society for Horticultural Science 125, no. 3 (2000): 350–56. http://dx.doi.org/10.21273/jashs.125.3.350.

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The tensile properties of european pear (Pyrus communis L. `Beurre Bosc') and asian pear (Pyrus pyrifolia Nakai `Choguro') were examined using a microscope-mounted apparatus that allowed direct observation and recording of cell and tissue changes during testing. To manipulate turgor potential, tissue slices from fruit of different firmness (ripeness) were incubated in sucrose solutions of differing water potential. Solution water potentials were adjusted for individual fruit, and varied between -2.5 and 1 MPa from the water potential of the expressed juice. Fruit firmness declined from 100 to

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