All

What are you looking for?

All
Projects
Results
Organizations

Quick search

  • Projects supported by TA ČR
  • Excellent projects
  • Projects with the highest public support
  • Current projects

Smart search

  • That is how I find a specific +word
  • That is how I leave the -word out of the results
  • “That is how I can find the whole phrase”

Evaluation of pollen quality and self-fertility in selected cultivars of Asian and European pears

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43510%2F17%3A43911780" target="_blank" >RIV/62156489:43510/17:43911780 - isvavai.cz</a>

  • Result on the web

    <a href="http://dx.doi.org/10.15835/nbha45210877" target="_blank" >http://dx.doi.org/10.15835/nbha45210877</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.15835/nbha45210877" target="_blank" >10.15835/nbha45210877</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Evaluation of pollen quality and self-fertility in selected cultivars of Asian and European pears

  • Original language description

    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 - &apos;Clapp&apos;s Favourite&apos; and Asian cultivars - &apos;Zao Su Li&apos;, and &apos;Shinko&apos; were characterized by the highest number of pollen grains (over 50,000 grains). Asian cultivar &apos;Dangshansu Li&apos; had the lowest number of pollen grains (less than 10,000 grains). The pollen viability of Asian pears ranged between 90 and 100%. Among European pears, &apos;Williams Bon Chrétien&apos; and &apos;Clapp&apos;s Favourite&apos; exhibited the highest pollen viability (90%), while the lowest viability was observed for the pollen of cultivars &apos;Beurré Bosc&apos; and &apos;Alexander Lucas&apos; pear (60-70%). Additionally, it was found that the germination capacity of the latter two cultivars was very weak (40-70%). After open- pollination all investigated cultivars exhibited greater pollen germination index (PGI) comparing to selfpollination. After the cross-pollination the percentage of pollen tubes below the 20% value at half the length of the pistil suggested a strong incompatibility between the crossed cultivars. The results clearly showed that none of the Asian cultivars are self-fertile, and they require a pollen - donor to produce fruits.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    40105 - Horticulture, viticulture

Result continuities

  • Project

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2017

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Notulae Botanicae Horti Agrobotanici Cluj-Napoca

  • ISSN

    0255-965X

  • e-ISSN

  • Volume of the periodical

    45

  • Issue of the periodical within the volume

    2

  • Country of publishing house

    RO - ROMANIA

  • Number of pages

    8

  • Pages from-to

    375-382

  • UT code for WoS article

    000411504400009

  • EID of the result in the Scopus database

    2-s2.0-85029404828