Evaluation of reproductive barriers contributes to the development of novel interspecific hybrids in the Kalanchoë genus

Table 3 Relation between number of pollen tubes and pollen viability, germinability and genetic distance

¹r² value; ²NS, ***, **, *indicate non-significant, significant at P ≤ 0.001, P ≤ 0.01 and P ≤ 0.05, respectively; ³stigma as an explanatory variable; ⁴r² and significance value for linear model with stigma as an explanatory variable.
The analysis of number of pollen tubes was performed 48 h after pollination.

ISSN: 1471-2229