Lina, Maryam Ade (2017) Adaptasi Aktivitas Vegetatif Semai Spesies Critically Endangered Hopea Sangal Korth Pada Dua Variasi Keteduhan Di Kebun Raya Purwodadi. Sarjana thesis, Universitas Brawijaya.
Abstract
Tujuan dari penelitian ini adalah untuk menganalisis adaptasi pertumbuhan vegetatif semai H. sangal, menentukan interaksi antara faktor iklim mikro dengan pertumbuhan tanaman dan produktivitas tanaman H. sangal pada dua variasi keteduhan habitat di nursery KRP. Percobaan semu ini menggunakan rancangan acak lengkap dengan dua perlakuan dan masing-masing diulang sembilan kali. Sembilan tanaman ditumbuhkan pada habitat dengan keteduhan 88 % dan sembilan tanaman pada keteduhan 94 %. Pengamatan terhadap aktivitas vegetatif tanaman meliputi tinggi dan diameter batang, kelimpahan tunas, cabang, daun muda, dewasa dan daun tua/gugur pada setiap minggunya. Pengukuran iklim mikro meliputi intensitas cahaya, suhu dan kelembapan udara serta pengambilan data curah hujan pada setiap bulan. Analisis data menggunakan Microsoft Excel, analisis biplot dan uji t pada program PAST. Hasil penelitian menunjukkan bahwa semai tanaman H. sangal yang ditumbuhkan pada dua variasi keteduhan habitat dapat tumbuh dan beradaptasi berdasarkan morfologi yang diamati. Keteduhan habitat 88 % lebih cocok digunakan untuk pertumbuhan awal semai H. sangal dibandingkan dengan keteduhan 94 %. Terdapat aktivitas pertumbuhan periodik pada kelimpahan tunas, daun muda dan daun tua/gugur. Intensitas cahaya pada keteduhan 88 % cenderung meningkatkan pertumbuhan aktivitas vegetatif semai H. sangal seperti tinggi dan diameter batang, jumlah cabang, kelimpahan tunas, daun muda, dewasa dan daun tua/gugur. Semai H. sangal yang tumbuh pada habitat dengan keteduhan 88 % (114,11 g.m-2.bulan-1) memiliki produktivitas lebih tinggi dibandingkan keteduhan 94 % (83,63 g.m-2.bulan-1).
English Abstract
Aims of this research were to analyze adaptation of H. sangal seedling vegetative growth, to determine interaction among microclimate, seedling growth and their productivity under two shading areas in the nursery of Purwodadi Botanical Garden (KRP). This quasi experiment was held by using a completely randomized design. There were two treatments and nine replications. Seedlings of H. sangal were planted in 18 polybags and cultivated in two level shading area (88% or 94%). Their vegetative growth including stem height, diameter, number of twigs, buds, young leaves, mature leaves and old leaves were weekly observed. Moreover light intensity, air temperature, relative humidity and rainfall were measured monthly by KRP. Data were descriptively analyzed using Microsoft Excel, biplot analysis and t-test run in PAST program. The results showed that seedlings grew and well adapted in two shading areas shown by their morphology, however they prefered growing under the 88% shading habitat rather than the 94% one. They showed periodic growth on twigs, young leaves and old leaves density. Light intensity in the 88 % shading area increased vegetative growth H. sangal seedlings such as stem height and diameter, number of twigs, buds, as well as young, mature and old leaves. Seedling growth under 88% of shading showed a higher productivity (114.11 g.m-2.month-1) than those in another habitat (83.63 g.m-2.month-1).
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | SKR/FMIPA/2017/253/051705729 |
| Uncontrolled Keywords: | adaptasi, Hopea sangal, keteduhan habitat, KRP, pertumbuhan vegetatif |
| Subjects: | 500 Natural sciences and mathematics > 571 Physiology and related subjects > 571.2 Plants and microorganisms |
| Divisions: | Fakultas Matematika dan Ilmu Pengetahuan Alam > Biologi |
| Depositing User: | Nur Cholis |
| Date Deposited: | 23 Oct 2017 06:59 |
| Last Modified: | 24 Nov 2021 03:19 |
| URI: | http://repository.ub.ac.id/id/eprint/4201 |
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