Figure 2.

Pollen grains viability of Agave tequilana var. azul. Vp = viable pollen. Nv = non viable pollen. Bar = 0.5 mm

Ruvalcaba-Ruiz and Rodríguez-Garay BMC Plant Biology 2002 2:10   doi:10.1186/1471-2229-2-10
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