Variety traits

Self-fertility — Sweet chestnut

Castanea sativa Mill.

The sweet chestnut is a self-incompatible crop requiring cross-pollination for fruit production. Fructification is ensured through biological mechanisms that prevent self-fertilization.

In the reference 15 varieties crop Sweet chestnut, where this is mentioned in the description.

The sweet chestnut is classified as a self-incompatible crop. The primary mechanism preventing self-fertilization is late-acting self-incompatibility, where fruit development is inhibited even if self-pollen reaches the stigma. Dichogamy, the asynchronous flowering of male and female flowers on the same tree, also plays a significant role.

The vast majority of trees of this species are self-sterile, with only rare breeding lines exhibiting signs of partial self-fertility. Consequently, commercial cultivation requires the mandatory planting of several pollinator varieties that coincide in flowering time to ensure effective cross-pollination.

General information about the subject — on the page Self-fertility.

Sources8

Varieties of Sweet chestnut mentioned in the description

Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.