Factors influencing pollen germination in three Explorer™ roses

Abstract

Richer, C., Poulin, M. and Rioux, J.-A. 2007. Factors influencing pollen germination in three Explorer™ roses. Can. J. Plant Sci. 87: 115-119. Pollen germination is useful for the estimation of pollen viability. For three cultivars from the Explorer TM series, Champlain, Nicolas and Frontenac, a liquid medium with a pH of 5.6 and a saccharose concentration of 15% provides optimal germination conditions. Four flower stages were determined and evaluated according to the following scale: flower bud at stage 0 (closed bud), stage 1 (closed petals but open sepals), stage 2 (bud with petals three-quarters open) and stage 3 (fully open flower). Pollen germination was higher when the pollen was collected at stages 0 and 1 for Champlain, at stages 1 and 2 for Frontenac and at stage 2 for Nicolas. Based on the results of the evaluation of pollen drying techniques, it is recommended that pollen be dried for 24 h in darkness before use in crossing.

Farklı Sıcaklık ve Sürelerde Bekletilen Kasımpatı Polenlerinde Polen Kalitesinin Belirlenmesi

“…As a matter of fact, it has been reported by many researchers that pollen germination rates differ depending on genotype, ploidy levels, climatic conditions, pH, sucrose content, etc. of the germination medium, nutritional status of the plant, pollen collection time (season, flowering period, flower development period), storage conditions, and duration (Günes et al, 2005;Mert & Soylu, 2006;Richer et al, 2007;Zlesak, 2007;Sulusoglu & Cavusoglu, 2014;Martins et al, 2017;Fragallah et al, 2019).…”