Cotyledon Measure Influence to Growth of Ulin (Eusyderoxylon zwageri T. Et B) Seedling

By Lukman Hakim dan M.Anis Fauzi

(Balai Besar Penelitian Bioteknologi dan Tanaman Hutan)

Ironwood (Eusideroxylon zwageri) has bigger seed than among others tree species. This condition could make some difficulties in seed collecting, making nursery and seed transporting from seed collecting area to nursery. The aim of this research is knowing the correlation between Ulin seed length with stem and root length in nursery. The research used 4 provenances which each provenances have 15 seed sample so total sample seed 60 seed. Regresion analyze showed that seed length variable (X) versus stem length (Y1) has formula Y1= 9,601 + 0,446 X and seed length variable (X) versus root length (Y2) has formula Y1= 5,884 + 0,428 X. From both formula showed that seed length variable (X) are not significant to stemp length and root length variable.

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