KARAKTERISASI ANATOMI STOMATA DAUN SAGU (Metroxylon sagu Rottb.) PADA TAHAP ANAKAN DAN NYORONG

Abstract

The stomata density of sago increases along with sago growth. The highest starch production is found at nyorong stage. The spiny sago has higher starch production than unspiny sago, therefore it is necessary to characterize the leaf stomata at seedling and nyorong stage. Leaf samples of spiny and unspiny sago were taken from the base of the midrib of three different trees. The stomata observation of upper and lower epidermis of the young leaf was carried out at three different parts i.e. at the base, in the middle and at the tip of the leaf by making paradermal incisions. The result showed that the stomata density of seedling increased at the nyorong stage on both types of sago, however the highest stomata density was only found in the spiny sago. The stomata density showed a reduction from the base to the leaflet tip as well as leaf thickness.