Karakter morfologi paku pisik naga (Pyrrosia piloselloides) pada pohon inang berbeda

INDONESIA:

Paku sisik naga (Pyrrosia piloselloides) merupakan salah satu tumbuhan epifit dari famili Polypodiaceae. Paku ini biasanya tumbuh di permukaan batang pohon yang memiliki kondisi lingkungan yang lembab dan paparan sinar matahari yang cukup. Beberapa jenis pohon yang berbeda akan memunculkan karakter morfologi yang berbeda. Oleh karena itu, Penelitian ini bertujuan untuk mengetahui karakter paku sisik naga berdasarkan pohon inang yang berbeda.

Sampel diambil dari 3 jenis pohon inang yang berada di Universitas Brawijaya, diantaranya pohon sawit, palem, dan mahoni. Masing-masing pohon dipilih sebanyak 3 kali ulangan. Pengamatan morfologi terdiri dari organ rhizoma, daun, akar pelekat, dan spora. Pengamatan dilakukan secara langsung di lapangan dan di laboratorium optik untuk sampel akar pelekat, spora, sisik rhizoma, dan bulu daun. Data morfologi yang didapatkan dinalisis menggunakan satuan taksonomi operasional (STO).

Berdasarkan hasil penelitian diperoleh nilai persentase persamaan karakter dari masing-masing organ yaitu rhizoma 90%, daun 67,6%, akar pelekat 75%, dan spora 80%. Perbedaan mencolok dari semua karakter organ yang diamati terletak pada bentuk organ daun tropofil. Adanya perbedaan yang terjadi ini dapat disebabkan oleh faktor genetik maupun lingkungan. Namun, nilai persentase tersebut menunjukkan bahwa faktor genetik lebih mendominasi dibandingkan dengan faktor lingkungan.

ENGLISH:

Dragon scales spikes (Pyrrosia piloselloides) is one of the epiphytic plants which includes to one of the family of Polypodiaceae. These spikes are usually grown on the surface of the tree trunk that has a humid environmental conditions and exposure sufficient sunlight. Several different types of trees will bring different morphological characters. Therefore, this study aimed to determine in the character of dragon scales spikes based on different host trees.

The samples were taken from three species of host trees which exist in Brawijaya University, including oil palm trees, palms, and mahogany. Each tree is selected as many as 3 repetitions. Morphological observation consists of organ rhizomes, leaves, roots adhesive, and spores. Observations were conducted directly in the field and in the laboratory for sample optical adhesive roots, spores, rhizomes scales, feathers and leaves. Morphological data which obtained is analyzed using operational taxonomic units (STO).

Based on the results obtained, percentage value equation character of each organ is rhizoma 90%, 66.67% leaves, roots adhesive 75%, and 80% spores. Striking differences from all the characters organs that observed is exist in the organ of tropofil leaves. These differences can occur due to genetic and environmental factors. Nevertheless, the percentage values ​​indicate that genetic factors are more dominant than the environmental factors.