The objectives of this research were to determine the effect of chemical and biological fertilizers on the growth of red Jabon (Anthocephalus macrophyllus (Roxb.) Havil) seedlings in the nursery. This research was conducted at the Tembal Lestari nursery, South Halmahera Regency, North Maluku Province. The results of this research showed that giving a combination of biological and chemical fertilizers has a significant effect on the increase in height, diameter, and number of leaves of red jabon seedlings
The development of nutmeg (Myristica fragrans Houtt) community forests needs to be supported by high-quality seed procurement, both physical, physiological, and genetic quality. Physically it can be done by morphological analysis in the form of length, diameter, and weight of seeds. Meanwhile, to determine the physiological quality, one of which is by observing germination. This research aimed to identify the morphology of seeds and germination of nutmeg (M. fragrans Houtt.) from different seed sources in the development of nutmeg community forests in Bacan, South Halmahera. The results showed that the morphology of nutmeg seeds in the shape, color, and skin surface variables at the three locations (Amasing, Papaloang, and Babang) obtained the same results, namely oval, brownish-black and shiny. Whereas in seed length, nutmeg from Papaloang has a longer seed size than seeds from Amasing and Babang. In the germination parameter values, seeds from Papaloang were found to have the highest value, namely the percentage of germination (K = 35%), peak value (PV = 0.56), average daily germination (MDG = 0.56), germination value (NK = 0.31 ).
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