Peningkatan indeks kualitas semai akibat inokulasi mikorisa pada semai Vitex cofassus Reinw = The Increasing of Seedling Quality Index Resulted by
| Main Author: | Perpustakaan UGM, i-lib |
|---|---|
| Format: | Article NonPeerReviewed |
| Terbitan: |
[Yogyakarta] : Universitas Gadjah Mada
, 2002
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| Subjects: | |
| Online Access: |
https://repository.ugm.ac.id/17400/ http://i-lib.ugm.ac.id/jurnal/download.php?dataId=152 |
Daftar Isi:
- The research was aimed to determine different effect of vesicular arbuscular mycorrhiza (VAM) inoculation, rock-phosphate and charcoal dust on the increase of seedling quality index of V. cofassus. The research was conducted in the Greenhouse and the Laboratory of Biotechnology at Faculty of Forestry, Gadjah Mada University. The experiment was employed with factorial experiments in randomized complitely design, with 3 factors, i.e. : 1) mycorrhiza inoculation (3 kinds). 2) rock-phosphate (4 levels). 3) charcoal dust (4 levels). Total of number treatment combination were 48 with 6 replication and there were 288 units observation. After 4 month experiment, the effects of VA mycorrhiza from mycofer (12) showed better response than natural VA mycorrhiza (Ii). P concentration in leaf was 72.07 mg/100g in the V. cofassus seedling treated by mycofer (I2), whereas the V. cofassus seedling given natural mycorrhiza (I) 60.85 mg /100g. The P absorption was higher when treatment combination of different mycorrhiza, rock-phosphate levels and charcoal dust was applied. The best combination was I1P3A2 (184.0 mg/100 g). The best seedling quality index was 0.63 resulted by I2P2A1. By addition of rock-phosphate treatment was increased the quality index of V. cofassus seedling. The best effect on seedling quality index was obtained in application of 9 g /bag (P3). The I2P2A1 increased the highest seedling quality index. The charcoal dust treatment (A) on latosol soil increased seedling quality index of V. cofassus. The best level of charcoal dust resulting in increase of seedling quality index was 30 % (A3). Keywords: inoculation � phosphate � charcoal � growth quality