Caring wildlings methods for ex situ conservation: red balau (Shorea guiso (Blanco) Blume)

Abstract

Dodo, Wawangningrum H. 2018. Caring wildlings methods for ex situ conservation: red balau (Shorea guiso (Blanco)
Blume). Pros Sem Nas Masy Biodiv Indon 4: 139-143. Shorea guiso (Blanco) Blume of the family Dipterocarpaceae is one of the most
important hardwood species used in general construction of houses. It is native in Cambodia, Vietnam, Thailand, Peninsular Malaysia,
Sumatra, Borneo, and the Philippines, scattered in lowland forest, but Critically Endangered A1cd ver 2.3, so it must be saved. Ex situ
conservation is an effective strategy for saving the plant from extinction. One way is to move the wildlings from in situ to ex situ area
through exploration activities. Problems in displacement of wildlings is very low survival rates, the cause is too long kept. The study
aims to obtain the best method so that wildlings can survive for a long time. Experiments using completely randomized design with
treatments: the type of growing medias (moss, leaf litter, tissue paper, and without media), cutting leaves (50% and 0%), and storing
times (1, 2, 3 weeks). Each experimental unit contains 10 wildlings of S. guiso with three replications. The results showed that the
average of survival rate on two months after planting was 77.08% to which stored one week, 38.33% of the stored two weeks, and
26.67% of the stored three weeks. So, the wildlings should not be stored for too long. The best treatment is reduced by 50% of the leaf,
without media, and covered with a plastic bag.