Open AccessTINGKAT PLOIDI DAN TIPE REPRODUKSI Dryopteris sparsa DI HUTAN WISATA CANGAR KOTATIF BATU JAWA TIMUR
Author(s) -
Siti Zubaidah
Publication year - 2006
Publication title -
berkala penelitian hayati (journal of biological researchers)/berkala penelitian hayati
Language(s) - English
Resource type - Journals
eISSN - 2337-389X
pISSN - 0852-6834
DOI - 10.23869/bphjbr.11.2.20063
Subject(s) - biology , ploidy , botany , dryopteris , spore , horticulture , fern , biochemistry , gene
Study of ploidy level and reproduction type of the fern species Dryopteris sparsa growing in Hutan Wisata Cangar (HWC) Kotatif Batu Jawa Timur and their relationship to the variation of leaf form and size was carried out. Ploidy level was determined based on somatic chromosome number counts by using standard squash methods. Reproduction type was examined by a spore count methods. The morphological characters that examined were the blade length, ratio of basal pinna length to blade length, ratio of stipe length to leaf length and ratio of basal basiscopic pinnule length to basal pinna length. We found that D. sparsa have two forms of ploidy levelreproduction type, there were sexual diploid (2n = 58) and sexual tetraploid (2n = 164). They could be differentiated by the variation of leaf form and size.