Camellia grijsii Hance is one of the most important woody edible oil tree species in Southern China; however, it often has a low fruit set rate. To elucidate the causes of poor fruit set in C. grijsii, self-pollination (SP) with C. grijsii and cross-pollination (CP) of C. grijsii x C. villosa tests were conducted. Pollen germination and pollen tube growth into pistils, and early ovule development after SP and CP, were examined using a paraffin section and fluorescence microscopy. The fruit set percentage in SP and CP was also investigated. The results showed that pollen germinated normally on ...
