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

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

  Stigma Style Ovary
Simple [%] Multiple [%] Simple [%] Multiple [%] Simple [%] Multiple [%]
Viability 23.41 **2   NS2 18.1 *2   NS 4.27 NS   NS
  +stigma3      (91.2) (***)       
Germinability 36.5 *** 51.0 ** 28.3 ** 40.5 * 14.3 * 31.9 *
  +stigma      (91.3)4 (***)4    (66.6) (***)   
Genetic distance 22.4 **   * 18.4 *   * 13.8 *   *
  +stigma      (91.1) (***)    (64.5) (***)   
  1. 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.
  2. The analysis of number of pollen tubes was performed 48 h after pollination.