2020年小坑林场高州油茶等种质资源林调查初报

Preliminary Report on the Investigation of Camellia gauchowensis and Other Germplasm Resources Forests in Xiaokeng Forest Farm in 2020

对2015年营建于广东省韶关市曲江区国有小坑林场的广东油茶Camellia oleifera种质资源林开展生长、开花结实调查。结果表明:5种油茶中,树体大小(树高×冠幅)依次为:香花油茶C.osmantha>高州油茶C.gauchowensis>香花糙果C.suaveolens>普通油茶C.oleifera>小果油茶C.meiocarpa,平均结果量大小依次为:香花油茶>普通油茶>高州油茶>小果油茶>香花糙果;平均花芽量大小依次为:小果油茶>高州油茶>普通油茶>香花油茶>香花糙果;平均花期从早到晚依次为:香花糙果>小果油茶>普通油茶>高州油茶>香花油茶。在高州油茶的162个无性系中,结果量较大(果实数量>100个)的无性系共有30个,树形基本以中间型为主,花期以偏晚到偏早之间为主,盛花期在12月。

A survey of the growth,flowering and fruiting of the Camellia oleifera germplasm resource forest in Guangdong established in the state-owned Xiaokeng Forest Farm in Qujiang district,Shaoguan City,Guangdong province in 2015 was carried out.The results showed that among the 5 oil-tea tree species,the tree body size(tree height*crown width)was as follows:C.osmantha>C.gauchowensis>C.suaveolens>C.oleifera>C.meiocarpa,and the order of average results was as follows:C.osmantha>C.oleifera>C.gauchowensis>C.meiocarpa>C.suaveolens;the order of the average flower bud size was:C.meiocarpa>C.gauchowensis>C.oleifera>C.osmantha>C.suaveolens;the average flowering period from morning to night was:C.suaveolens>C.meiocarpa>C.oleifera>C.gauchowensis>C.osmantha.Among the 162 clones of C.gauchowensis,there were 30 clones with a larger amount of fruit(the number of fruits>100).The tree shape was basically intermediate,the flowering period was mainly late to early,and the full flowering period was in December.