Strong pollen limitation in genetically uniform hybrid chestnut orchards despite proximity to chestnut forests

Table 1 Information about the sampled chestnut production orchards

Orchard name	Location	Area (ha)	Cultivars of sampled mother trees	# Genotypes^a	Chestnut forests^b
A	Prigonrieux	1.4	Marigoule	1	No
B	Siorac de Ribérac	9.2	Marigoule	3	Yes
C	Saint Pierre d’Eyraud	8.3	Marigoule, Bouche de Bétizac	18	No
D	Saint Felix de Villadeix	6	Marigoule, Bouche de Bétizac	10	Yes
E	Douville	18 (0.8^c)	Marigoule, Bouche de Bétizac	68	Yes

^aNumber of different genotypes detected in the orchard (mother trees studied and all other detected flowering genotypes)
^bPresence of chestnut forests around orchards
^cStudied plot is a small part of the experimental orchards

ISSN: 1297-966X