ANALISIS MULTIVARIAT KARAKTER BUNGA DAN DAUN PADA POPULASI TIGA SPESIES BENGKUANG (Pachyrizus spp.)
Noladhi Wicaksana dan Agung Karuniawan Staf Pengajar Jurusan Budidaya Pertanian
Fakultas Pertanian Universitas Padjadjaran Bandung, 40600
ABSTRAK
Penelitian ini bertujuan untuk menguji penampilan karakter morfologi daun dan bunga dari tiga spesies bengkuang (P. erosus, P. Ehipa, dan P. tuberosus) di Jatinangor Jawa Barat. Dua belas genotip P. erosus, enam genotip P. ahipa dan empat P. tuberosus ditanam dalam rancangan acak kelompok dengan dua ulangan. Analisis multivariat meliputi analisis komponen utama dan kluster yang dilakukan berdasarkan 18 karakter morfologi daun dan bunga. Hasil penelitian menunjukkan, bahwa analisis komponen utama dan analisis kluster mampu mengelompokkan secara jelas tiga spesies bengkuang yang berbeda. Morfologi bunga adalah karakter utama dibandingkan morfologi daun sebagai diskriminan diantara tiga spesies bengkuang.
Kata Kunci: Analisis multivariat, bengkuang, Pachyrizus spp
MULTIVARIATE ANALYSIS ON FLOWERS AND LEAVES CHARACTERS OF THREE YAM BEAN SPECIES (Pachyrizus spp.)
POPULATION
ABSTRACT
The objective of this study was to analyse flowers and leaves morfological characters of three yam bean species (P. erosus, P. ahipa, and P. tuberosus) in Jatinangor West Java. Twelve P. erosus genotypes, six P. ahipa genotypes, and four P. tuberosus genotypes were planted on randomized block design with two replications. Multivariate analysis i.e., principal component and cluster analysis was used to grouping the three species of yam bean based on 18 characters of flowers and leaves performances. Both principal component and cluster analysis clearly separated the three species. The analysis showed identification of floral variables as the main characters to discriminate between species.
