Collocating Main Cultivated Varieties of Camellia oleifera in Hilly Areas of Eastern Guizhou
Camellia oleifera is one of the most important oil tree species in southern China.In this study,a system-atic investigation was carried out to collocate the pollen amount,hybrid fruit setting rate and seed traits of Camellia oleifera.10 varieties of Camellia oleifera were taken from the eastern Guizhou Province of China.Different allocations were also evaluated to determine the optimal combination.The results showed that:(1)Qianyu No.2 presented the largest pollen amount,and Xianglin No.210 was the smallest.The pollen amount in the local varieties Qianyu and Qianbi was significantly higher than that of introduced certified varieties,such as Changlin ones;(2)68 of the 88 combinations were represented by the fertile.Furthermore,there were 19 combinations with the fruit setting rate of more than 60%,of which 16 were composed of different varieties.(3)The hybrid fruit setting rate was significantly positively correlated with the single fruit weight,seed number and seed weigh.The fresh seed rate was significantly negatively correlated with the fruit shape index and pericarp thickness;(4)Compared with Chang-lin 53,Guizhou local Qianyu and Qianbi varieties performed best as parent sample.The finding can also provide a strong reference to accurately allocate Camellia oleifera.
Camellia oleiferapollen amountvarieties collocationfruit setting rateseed and fruit traits