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', Herman
Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam
Mathematics

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APLIKASI MULSA Imperata cylindrica (L.), Mucuna bracteata DC. DAN KOMPOS PELEPAH KELAPA SAWIT (Elaeis guineensis Jacq.), TERHADAP PERKECAMBAHAN DAN PERTUMBUHAN Mikania micrantha H.B.K. Malinda, Sari; Fatonah, Siti; ', Herman
Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Vol 1, No 2 (2014): Wisuda Oktober 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam

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The research on the use of mulch of Imperata cylindrica, Mucuna bracteata, and palm midrib compost on the germination and growth of Mikania micrantha had been conducted at the Laboratory of Biology and Botany Gardens, Department of Biology, Faculty of Mathematics and Natural Sciences, University of Riau from September to November 2013. The purpose of this study was to determine the effect of mulch thickness of I. cylindrica, M. bracteata and palm midrib compost on the germination and growth of M. micrantha, using randomized block design, with seven treatments (M0, M1, M2, M3, M4, M5, and M6). Each treatment had seven replicates with two different thickness of mulch, i.e. 2,5 and 5 cm. The results showed that mulch of I. cylindrica, M. bracteata and palm midrib compost affected the germination and growth of weeds M. micrantha. Mulching with 2,5 cm thickness could inhibit the germination and growth of weed M. micrantha up to 100 %.
KROMOSOM STICKY PADA PADI (Oryza sativa L.) ASAL BENGKALIS TERHADAP CEKAMAN ALUMINIUM (Al) Lestari, Endah Budi; Roslim, Dewi Indriyani; ', Herman
Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Vol 1, No 2 (2014): Wisuda Oktober 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam

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Bengkalis has various soil types, one of them is acid soil. The major problem in acid soil is aluminium toxicity that can harm rice plant roots. The objective of this study was to identify sticky chromosomes in some local rice genotypes from Desa Bantan Air, Bengkalis, Riau Province grown in Al stress medium. Plant materials examined were four local rice genotypes from the Desa Bantan Air, i.e. Amat Candu, Sadani, Solok, and Yamin. All of the rice genotypes were exposed to 12 ppm Al for 72 hours in minimum nutrient culture, pH 4. Each treatment was repeated three times. Randomized Block Design was used in this research. The results showed that sticky choromosomes were only detected at Yamin genotype treated by 12 ppm Al. It concluded that the sticky chromosomes found in the local rice genotypes from Bengkalis was Yamin genotype
Co-Authors Dewi Indriyani Roslim Endah Budi Lestari Sari Malinda Siti Fatonah