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Mekanisme Adaptasi Genotipe Baru Kedelai dalam Mendapatkan Hara Fosfor dari Tanah Mineral Masam Bertham, Rr. Yudhy Harini; Nusantara, Abimanyu Dipo
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 39, No 1 (2011): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

Phosphate deficiency  is one of the main constraints to increase soybean yield in acid mineral soil. An experiment was conducted with an objective to discover scientific base of fertilizer selection based on soybean adaptation mechanism to mitigate P deficiency in acid mineral soils in Bengkulu Province. A factorial experiment was arranged in a randomized complete block design with four replications. The first factor was soybean genotypes, i.e.  Slamet and three new soybean genotypes (NSGs) i.e. 19BE, 25EC and 13ED, and second factor was P fertilization dosages (0 and 400 mg P2O5 kg-1 soil). Soybean was grown in a greenhouse using double pot system. Research results showed that the NSGs had different mechanism in P uptake from soil with high P absorbing capacity compared to Slamet genotype.  NSGs translocated more carbon to root, and decreasing of shoot-root ratio, about 66-70%. NSGs 25EC produce more oxalic and malic acid, and 13ED produce more citric acid to obtain same amount of P absorbed by Slamet variety. Under low P, NSGs developed symbioses with mycorrhizal arbuscular fungus, however, only 19BE which increase microbe population in rhizosfer. Phosphosrus fertilization supressed arbuscular ycorrhizal fungus development (15-100%), alkaline phosphatase activity (20-88%), and microbial C biomass (40-71%) in rhizosphere of new soybean genotypes.   Keywords: acid soil, adaptation mechanism, P acquisition, soybean genotypes
Mekanisme Adaptasi Genotipe Baru Kedelai dalam Mendapatkan Hara Fosfor dari Tanah Mineral Masam Bertham, Rr. Yudhy Harini; Nusantara, Abimanyu Dipo
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 39, No 1 (2011): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (272.129 KB) | DOI: 10.24831/jai.v39i1.13184

Abstract

Phosphate defi ciency is one of the main constraints to increase soybean yield in acid mineral soil. An experiment was conducted with an objective to discover scientifi c base of fertilizer selection based on soybean adaptation mechanism to mitigate P defi ciency in acid mineral soils in Bengkulu Province. A factorial experiment was arranged in a randomized complete block design with four replications. The fi rst factor was soybean genotypes, i.e. Slamet and three new soybean genotypes (NSGs) i.e. 19BE, 25EC and 13ED, and second factor was P fertilization dosages (0 and 400 mg P2O5 kg-1 soil). Soybean was grown in a greenhouse using double pot system. Research results showed that the NSGs had different mechanism in P uptake from soil with high P absorbing capacity compared to Slamet genotype. NSGs translocated more carbon to root, and decreasing of shoot-root ratio, about 66-70%. NSGs 25EC produce more oxalic and malic acid, and 13ED produce more citric acid to obtain same amount of P absorbed by Slamet variety. Under low P, NSGs developed symbioses with mycorrhizal arbuscular fungus, however, only 19BE which increase microbe population in rhizosfer. Phosphosrus fertilization supressed arbuscular mycorrhizal fungus development (15-100%), alkaline phosphatase activity (20-88%), and microbial C biomass (40-71%) in rhizosphere of new soybean genotypes
Uji Coba Empat Varietas Kedelai di Kawasan Pesisir Berbasis Biokompos Bertham, Yudhi Harini; Aini, Nur; Murcitro, Bambang Gonggo; Nusantara, Abimanyu Dipo
Biogenesis: Jurnal Ilmiah Biologi Vol 6, No 1 (2018)
Publisher : Jurusan Biologi UIN Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (463.221 KB) | DOI: 10.24252/bio.v6i1.4144

Abstract

This study aims to obtain soybean varieties that are able to grow well and produce high in biocomposite coastal areas. This study was compiled using Randomized Block Design (RAKL) with single factor consisting of four varieties of soybeans namely Wilis, Grobogan, Detam I and Detam II. The results showed that the varieties of Wilis produce the highest plant height 63,13 cm, the highest percentage of pods per plant is 91,12%, the highest number of seeds per plant is 249,56 pieces, the heaviest seed weight per plant is 30,92 gram, while the Grobogan which produce the heaviest dry weight is 7,92 g, the highest K absorption is 0,22 g and the highest 100 seed weight is 18,00 g. Thus, the varieties of Wilis and Grobogan have higher adaptation rates than the Detam 1 and Detam II varieties, which has the potential to be developed in coastal areas.
Biomass and Artemisinin Production of Artemisia annua L. on Several Altitudes Nusantara, Abimanyu Dipo; Bertham, Yudhy Harini; Siswanto, Usman; Andani, Apri
International Journal on Advanced Science, Engineering and Information Technology Vol 9, No 2 (2019)
Publisher : International Journal on Advanced Science, Engineering and Information Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18517/ijaseit.9.2.2023

Abstract

Increasing supply of artemisinin as a multipurpose medicinal compound, especially to cope with malaria, is a global problem that should be solved immediately. The aim of this research was to obtain high artemisinin production from Artemisia annua L. cultivated at the suitable altitude at Bengkulu Province of Indonesia. Experimental design used was a Split Plot in Randomized Complete Block Design with three replications, altitude (1000, 1100 and 1200 m above sea level altitudes each located at Sukasari, Bandung Baru, and Tangsi Duren, Kepahyang District Province Bengkulu of Indonesia) as main plot and bio-fertilizer application (control, arbuscular mycorrhizal fungi, and phosphate solubilizer fungi) as subplot. Each experimental unit received 10 ton ha-1 of cow-dung. Research result shows that altitude significantly affects artemisinin, essential oil, mycorrhizal and phosphate solubilizer fungus population, but not affect biomass production. Overall, Artemisia annua L. was successfully planted at the 1000 – 1200 m above sea level. Biomass and artemisinin production was higher compared to other experiment, i.e 350 g per plant with 0.21 – 0.43% of artemisinin content.
The Improvement of Yield and Quality of Soybeans in A Costal Area Using Low Input Technology Based on Biofertilizers Bertham, Yudhy Harini; Arifin, Zainal; Nusantara, Abimanyu Dipo
International Journal on Advanced Science, Engineering and Information Technology Vol 9, No 2 (2019)
Publisher : International Journal on Advanced Science, Engineering and Information Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18517/ijaseit.9.2.6247

Abstract

Indonesia is an archipelagic country, having vast coastal areas which have not been utilized optimally for crop cultivation because their poor soil properties become a limiting factor for plant growth. It is, therefore, necessary to use cultivation technology, such as the use of soil microbes in order to overcome this limiting factor. The objective of this study was to determine the appropriate soil microbes for improving the quality of  soybean grains, the rhizosphere environment, and the soybean yield in a coastal area. The study was conducted in Bengkulu, Indonesia, using Randomized Complete Block Design, with a single factor, namely organic fertilizers. Six treatments were applied, namely addition of arbuscular mycorrhizal fungi(AMF), phosphate-dissolving fungi (PDF), Rhizobium (R), AMF+PDF, R+AMF, and R+PDF. The results of analyses showed that the dual inoculation of arbuscular mycorrhizal fungi and phosphate-dissolving fungi (AMF+PDF) resulted in the largest populations ofphospate-dissolving fungi and arbuscular mycorrhizal fungi, the highest percentage of arbuscular mycorrhizal fungi (AMF) infection, protein content in grain, tissue P content, grain weight and yield. The inoculation of phosphate-dissolving fungi (PDF) produced the highest fat content. 
PEMANFAATAN MIKROBA UNTUK MENINGKATKAN PERTUMBUHAN DAN HASIL KEDELAI DI TANAH PESISIR Nusantara, Abimanyu Dipo; Bertham, Yudhy Harini; Junedi, Ahmad; Pujiwati, Hesti; Hartal, Hartal
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 21, No 1 (2019)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.21.1.37-43

Abstract

[UTILIZATION OF MICROBE TO INCREASE GROWTH AND YIELDS OF SOYBEAN IN COASTAL LAND]. This study aims to obtain the precise combination of variety and biofertilizer to increase soybean productivity in Bengkulu coastal land. The research was conducted from March to July 2017, located at Beringin Raya Village, Muara Bangkahulu Sub-District, Bengkulu. The study was conducted using a split-plot design which was repeated three times. The main plot was two soybean varieties (Grobogan and Wilis). The subplots were two types of biofertilizers, arbuscular mycorrhizal fungi and phosphate solubilizing fungi. The result showed that the seed weight of the Grobogan variety (equivalent to 3.38 tons/ha) was significantly higher than the Wilis variety (equivalent to 2.72 tons/ha). However, the increment of the Wilis variety (equivalent to 1.12 tons/ha) was higher than the Grobogan variety (equivalent to 0.61 tons/ha) according to the description of each variety. The combination of arbuscular mycorrhizal fungi and phosphate solubilizing fungi showed superior performance than arbuscular mycorrhizal fungi or phosphate solubilizing fungi alone. The interaction of Grobogan varieties with a combination of arbuscular mycorrhizal fungi and phosphate solubilizing fungi produced the highest seed weight (equivalent to 3.52 tons/ha) which was statistically similar to the interaction of Grobogan varieties and arbuscular mycorrhizal fungi (equivalent to 3.45 tons/ha). In terms of economics of resources, the use of arbuscular mycorrhizal fungi is not required to be combined with phosphate solubilizing fungi.