caa a22 4500 397521758 CHVBK 20180308164634.0 cr unu---uuuuu 161202e199502 xx s 000 0 eng 10.1093/jxb/46.2.263 doi (NATIONALLICENCE)oxford-10.1093/jxb/46.2.263 Papillar integrity as an indicator of stigmatic receptivity in kiwifruit (Actinidia deliciosa) [Elektronische Daten] [M.V. González, M. Coque, M. Herrero] Stigmatic receptivity is a major factor limiting fruit set in kiwifruit (Actinidia deliciosa). The aim of this work was to know what determines the cessation of stigmatic receptivity in this species. Stigmatic receptivity has been analysed in kiwifruit through the capacity of the stigma to sustain pollen germination and has been related to stigmatic development and degeneration.The stigma of kiwifruit flowers has a papillate surface which from anthesis is covered with an abundant exudate. Papillae are unicellular and contain a number of phenolic deposits. During the lifetime of the flower these papillae gradually lose turgidity, while stigmatic secretion increases until 5 d after anthesis when papillae start rupturing and the papillar content is liberated into the germination medium. Stigmatic receptivity is high at anthesis and lasts for the next 4 d. However, it drastically decreases 5 d after anthesis and it is nil 2 d later. The pattern of stigmatic receptivity closely fits that of papillar integrity, indicating that stigmatic receptivity relies on this integrity. Since papillar integrity can easily be evaluated in stigmatic arms, this criterion can be used as a quick method to estimate stigmatic receptivity. © Oxford University Press Research Papers nationallicence Actinidia deliciosa nationallicence kiwifruit nationallicence stigma nationallicence receptivity nationallicence pollen nationallicence González M.V. Departamento de Fruticultura, IEPA Aptdo. 13, E-33300 Villaviciosa, Asturias, Spain aut Coque M. Departamento de Fruticultura, IEPA Aptdo. 13, E-33300 Villaviciosa, Asturias, Spain aut Herrero M. Unidad Fruticultura, SIA-DGA, Campus de Aula Dei Aptdo. 727, E-50080 Zaragoza, Spain aut Journal of Experimental Botany Oxford University Press 46/2(1995-02), 263-269 0022-0957 46:2<263 1995 46 exbotj https://doi.org/10.1093/jxb/46.2.263 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1093/jxb/46.2.263 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- González M.V. Departamento de Fruticultura, IEPA Aptdo. 13, E-33300 Villaviciosa, Asturias, Spain aut NATIONALLICENCE 700 1- Coque M. Departamento de Fruticultura, IEPA Aptdo. 13, E-33300 Villaviciosa, Asturias, Spain aut NATIONALLICENCE 700 1- Herrero M. Unidad Fruticultura, SIA-DGA, Campus de Aula Dei Aptdo. 727, E-50080 Zaragoza, Spain aut NATIONALLICENCE 773 0- Journal of Experimental Botany Oxford University Press 46/2(1995-02), 263-269 0022-0957 46:2<263 1995 46 exbotj Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford