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All Journal HAYATI Journal of Biosciences Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Jurnal Ilmu Pertanian Indonesia Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences JURNAL ANATOMI FISIOLOGI Biogenesis: Jurnal Ilmiah Biologi Jurnal Hortikultura Current Biochemistry AGRIVITA, Journal of Agricultural Science BIOTIK: Jurnal Ilmiah Biologi Teknologi dan Kependidikan Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat Jurnal Sumberdaya Hayati Jurnal Biodjati Jurnal Tanah dan Iklim Jurnal Penelitian Kehutanan Wallacea Jurnal Tumbuhan Obat Indonesia

, Triadiati

Departemen Biologi, Fakultas Matematika Dan Ilmu Pengetahuan Alam, Institut Pertanian Bogor (Bogor Agricultural University), Jl. Agathis, Kampus IPB Darmaga, Bogor, 16680, Indonesia

Author-ID : 405402

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Environmental Science Immunology & microbiology Medicine & Pharmacology Public Health

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Nitrogen Resorption and Nitrogen Use Efficiency in Cacao Agroforestry Systems Managed Differently in Central Sulawesi TRIADIATI TRIADIATI; SOEKISMAN TJITROSEMITO; EDI GUHARDJA; SUDARSONO SUDARSONO; IBNUL QAYIM; CHRISTOPH LEUSCHNER
HAYATI Journal of Biosciences Vol. 14 No. 4 (2007): December 2007
Publisher : Bogor Agricultural University, Indonesia

Cacao agroforestry is a traditional form of agriculture practiced by the people of Central Sulawesi. These agroforestry systems vary from a simple system following selective cutting of forest trees, to a more sophisticated planting design. The cacao was planted under remaining forest covers (CF1), under planted trees (CF2), and between shade trees Gliricidia sepium (CP). The objectives of this study were to quantify nitrogen use efficiency (N NUE) and nitrogen resorption in cacao agroforestry systems. The N NUE at the ecosystem scale (N NUEES) for the cacao agroforestry systems were compared with the natural forest. The results showed that CP produced the highest litterfall and cacao foliar nitrogen. CP and CF1 produced litterfall and the nitrogen resorption that not were significantly different. In contrast, CF2 produced the lowest litterfall, hence required lower nitrogen supply. The nitrogen resorption of CF2 was less than that of CF1 and CP. However, N NUE in cacao plant (N NUEC) of CF2 was higher than that of the CP. The N NUEES of either CF1 or CF2 were similar to that of the natural forest, but higher than that of the CP. Using shade trees in cacao plantations increased foliar nitrogen concentration, nitrogen resorption, N NUEC and N NUEES; thus, might be one reason for a higher productivity of cacao in unshaded systems. Key words: cacao agroforestry system, cacao foliar nitrogen, nitrogen resorption, N NUE

Land with low pH soil spread widely in Indonesia can be used for soybean (Glycine max) cultivation, although the production is low. The use of acid tolerant soybean and acid-Al tolerant nitrogen-fixing bacteria was an alternative way to increase soybean productivity on acid soils. This research was conducted to study the influence of acid-Al tolerant Bradyrhizobium japonicum on growth of Slamet cultivar soybean planted on acid soils in greenhouse. Three strains of acid-Al tolerant B. japonicum ANGELIA REZTY FITRIANI SITUMORANG; NISA RACHMANIA MUBARIK; TRIADIATI TRIADIATI
HAYATI Journal of Biosciences Vol. 16 No. 4 (2009): December 2009
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.16.4.157

Land with low pH soil spread widely in Indonesia can be used for soybean (Glycine max) cultivation, although the production is low. The use of acid tolerant soybean and acid-Al tolerant nitrogen-fixing bacteria was an alternative way to increase soybean productivity on acid soils. This research was conducted to study the influence of acid-Al tolerant Bradyrhizobium japonicum on growth of Slamet cultivar soybean planted on acid soils in greenhouse. Three strains of acid-Al tolerant B. japonicum, i.e. BJ 11 (19), BJ 11 (5), and BJ 11 (wt), were used in this experiment. The result showed that inoculation of all acid-Al tolerant B. japonicum strains could increase plant height, shoot and root weight, number of flowers, pods, seeds, seeds dry weight, and shoot and seed nitrogen content. Key words: Bradyhizobium japonicum, acid-aluminium tolerant, soybean, Slamet cultivar

Increasing Hermaphrodite Flowers using Plant Growth Regulators in Andromonoecious Jatropha curcas . DASUMIATI; . MIFTAHUDIN; . TRIADIATI; ALEX HARTANA; DIBYO PRONOWO
HAYATI Journal of Biosciences Vol. 21 No. 3 (2014): September 2014
Publisher : Bogor Agricultural University, Indonesia

Jatropha curcas (JC) is a crop with potential for use in biodiesel. Production of biodiesel requires plant seed as raw material, so the viability of JC for use in biodiesel will dependent greatly on the plant’s production of flowers. Generally, this plant is monoecious, meaning it has both male and female flowers. However, very rarely JC plants may be andromonoecious. Andromonoecious specimens of JC produce hermaphrodite and male flowers in the same plant. The number of hermaphrodite flowers per inflorescence is generally low compared to the number of male flowers. The aim of this study was to increase the proportion of hermaphrodite flowers by using plant growth regulators (PGRs) in andromonoecious JC. Our experiment was conducted in Randomized Block Design (RBD) with 9 treatments, namely kinetin, GA3, and IAA with concentrations of 0 ppm as a control, 50 and 100 ppm of each PGRs. The treatments were applied to stem cuttings from each plant and repeated 4 times. PGRs were applied by spraying the leaves within the buds of each plant. Applications took place weekly beginning when the plants entered flower initiating phase, until inflorescence produced. Observations were conducted during the treatment period (10 weeks). Results showed that plants treated with IAA, GA3, and kinetin at 50 and 100 ppm produced increased inflorescence per plant. The increases measured were 155.4 and 92.9% of (IAA), 120.4 and 151% (GA3), 96.6 and 51.7% (kinetin) respectively. In addition we found that application and GA3 at concentrations of 50 and 100 ppm, and kinetin at 50 ppm, increased the number of hermaphrodite flowers per inflorescence by 50%, and increased the number of hermaphrodite flowers per plant by 275.6 and 183.1% (IAA), 219.5 and 254.1% (GA3), 162.9 and 103.1% (kinetin) respectively. As would be expected, the number of fruit per plant increased in those specimens treated with IAA, GA3, and kinetin at 50 and 100 ppm. The increases measured were 301.7 and 167.4% (IAA), 211.7 and 257.0% (GA3), 162.5 and 101.4% (kinetin) respectively.

Fine Root Production and Decomposition in Lowland Rainforest and Oil Palm Plantations in Sumatra, Indonesia Violita Violita; Triadiati Triadiati; Iswandi Anas; Miftahudin Miftahudin
HAYATI Journal of Biosciences Vol. 23 No. 1 (2016): January 2016
Publisher : Bogor Agricultural University, Indonesia

Transformation of tropical rainforest into oil palm plantation not only has impacts on biodiversity but also affects ecosystem functions such as production and decomposition of fine roots as a nutrient source for plant. The objective of the research was to evaluate the production and decomposition rate of fine roots in natural forest (NF) at Bukit 12 National Park and oil palm plantation (OP) in Jambi, Sumatra. The soil core and litter bag methods were used to obtain fine root production and decomposition data. The results showed that generally, there was the same pattern in fine root production between NF and OP. The annual fine root productivity was found to be higher in NF than that of OP. Rainfall in NF and air temperature in NF and OP were the most significant climate factors affecting fine root production. The remaining fine root biomass decreased as the incubation time increased. The decomposition rate constant (k value) was significantly higher in NF than in OP. Our data showed that the nutrient turn-over of NF fine roots was faster than of OP fine roots. Nitrogen, carbon content, and C/N ratio were the main factors that influenced fine root decomposition.

Photosynthesis and Transpiration Rates of Rice Cultivated Under the System of Rice Intensification and the Effects on Growth and Yield Nurul Hidayati; . Triadiati; Iswandi Anas
HAYATI Journal of Biosciences Vol. 23 No. 2 (2016): April 2016
Publisher : Bogor Agricultural University, Indonesia

The system of rice intensification (SRI) crop management method has been reported by many authors to significantly increase rice yield with lower inputs, but physiological bases of yielding improvement has not been studied. In this research we assessed some physiological parameters and the mechanism of rice yield improvement of rice plants under SRI cultivation method during both vegetative and generative phases compared to conventional rice cultivation methods. We measured photosynthetic rate, transpiration rate, leaf temperature, chlorophyll content, N and P uptake, plant growth parameters and yield for those comparison. SRI methods significantly increased both vegetative and reproductive (generative) parameters of rice plants compared to conventional cultivation methods. Photosynthetic rate, chlorophyll content, N and P uptake under SRI cultivation were significantly higher compared to those of the conventional rice cultivation, but no differences were found in transpiration rate and leaf temperature. With SRI method, plants in their generative phase (especially in the grain-filling phase) had the highest photosynthetic and the lowest transpiration rates. Grain yield under SRI method was significantly higher (ca. 24%) than that of conventional method.

Physiological Character of Merremia peltata (L.) Merrill from Bukit Barisan Selatan National Park Lampung Yuke Mardiati; Triadiati Triadiati; Soekisman Tjitrosoedirdjo
HAYATI Journal of Biosciences Vol. 25 No. 1 (2018): January 2018
Publisher : Bogor Agricultural University, Indonesia

Merremia peltata invaded the vegetation of Bukit Barisan Selatan National Park (BBSNP) in Lampung Province, Indonesia. In this site, the invasion has reached more than 7000 hectares. Therefore, it is necessary to asses the physiological characters of M. peltata as an invasive plant species under different shading level in BBSNP. The experiment design of this study was split block design with factorial. The first factor (main plot) was shading treatment that consisted of 0, 55, and 90% shades. The second factor (sub plot) was 3 species of plant that consisted of M. peltata, Mikania micrantha, and Ipomoea batatas. Each experimental unit was replicated 3 times. The result showed that the physiological characters such as carbon fixation rate (CFR), relative growth rate (RGR), leaf area ratio (LAR), photosynthetics nitrogen use efficiency (PNUE) of M. peltata higher than the other two species and interconnected. Physiological characters associated with RGR can be supporting the invasiveness of M. peltata, especially in BBSNP. Supporting invasiveness with resources allocation to leaves biosynthesis and relatively efficient nitrogen were used for photosynthesis.

Rooting System of Rice Cultivated under System of Rice Intensification (SRI) Method which Improving Rice Yield Nurul Hidayati; Triadiati Triadiati; Iswandi Anas
HAYATI Journal of Biosciences Vol. 25 No. 2 (2018): April 2018
Publisher : Bogor Agricultural University, Indonesia

The development of plant roots is known to play a very important role in the uptake of water and nutrients by rice plants. However, there are few studies on what changes, if any, are induced in the rooting systems of rice plants under System of Rice Intensification (SRI) management. This research evaluated changes of rice roots with SRI method compared to conventional method of irrigated rice cultivation and assessed influences that could improve rice yield. Under SRI management, plant roots were significantly longer and heavier than with conventional method. SRI method also increased the number of root hairs by 60%, and root hairs were healthier and more vigorous compared with conventional method. However, root respiration was not different in the two methods. There was less formation of aerenchyma (air pockets) in rice roots with SRI method, as both the number and size of root aerenchyma were lower with SRI than with conventional method. The SRI method was able to improve the root length, root dry weight compared to the conventional method. The SRI method was also able to increase the number of root hairs by 60% compared with the conventional method. Eh measurements in the soil with SRI method were higher than with conventional method. However, there was no significant different in root respiration. The aerenchyma formation of rice roots in SRI method was lower than conventional method.

Androgynomonoecious Jatropha curcas: Chromosomes, Isozymes, and Flowers Gender Triadiati Triadiati; Kurniati Kurniati; Utut Widyastuti; Dasumiati Dasumiati
HAYATI Journal of Biosciences Vol. 26 No. 3 (2019): July 2019
Publisher : Bogor Agricultural University, Indonesia

Jatropha curcas (J. curcas) is usually monoecious plants, which have male and female flowers on the same inflorescence. However, J. curcas can be found as an androgynomonoecious plant (have male, female, and hermaphrodite flowers), even though very rare. Androgynomonoecious J. curcas can be identified after six months of planting when it had started flowering. Therefore, it is important to identify the characteristics of androgynomonoecious J. curcas that can differentiate between androgynomonoecious and monoecious plants in earlier stages of growth. The objectives of the research were to observe isozymes, chromosome and flowers gender of androgynomonoecious and monoecious J. curcas Banten and Lampung accessions. Seeds from five genotypes of J. curcas were used in the research. The observation was carried out on the chromosome and isozymes (Peroxidase and Esterase isozymes) could be used as markers to differentiate androgynomonoecious and monoecious plants. Observations about the flower gender from offsprings derived from different seeds were important to know the inheritance of flower gender. The androgynomonoecious and monoecious J. curcas were diploid with number of chromosomes 2n=2x=22. The chromosomes of androgynomonoecious have longer than that of monoecious J. curcas. The isozymes of androgynomonoecious J. curcas had four alleles and monoecious J. curcas (Banten female monoecious) had three alleles. The flower inflorescence and gender derived from androgynomonoecious plants were unstable, due to androgynomonoecious is intermediate state.

Morpho-Physiology of Mulberry (Morus sp.) Plant on Salinity Stress Tolerance Yasinta Ratna Esti Wulandari; Yohana Caecilia Sulistyaningsih; Agik Suprayogi; Min Rahminiwati; Triadiati Triadiati
HAYATI Journal of Biosciences Vol. 30 No. 4 (2023): July 2023
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.30.4.682-691

The accession of mulberry (Morus sp.) with salinity tolerance unavailable in Indonesia is needed to overcome the problem of marginal land, especially in the saline areas of the country. Therefore, this research aims to determine the accession of salinity tolerance of mulberry from 6 origins in Indonesia based on growth and physiological parameters. The method used was a factorial randomized block design with the first treatment of stem cutting-derived mulberry accession being M1, M2, M3, M4, M5, M6, and M7, while the second was the concentration of NaCl at 0 mM, 40 mM, 60 mM, and 80 mM. The results showed that M2 accession from Bogor was categorized as tolerance to high salt stress, and M1 was classified as sensitive accession. Increasing salt concentration causes a decrease in growth parameters. It also decreased physiological parameters such as leaf and media relative water content while increasing dissolved sugars. Genotypic scores indicate salinity tolerance and the potential number of leaves, while Na+ content and leaf necrosis percentage showed sodium toxicity in the leaf. Therefore, genotypic score, Na+/K+ ratio, and leaf necrosis percentage are the best parameters to select and identify mulberry accession with high salt stress tolerance.

Xylem Vessels Traits of Oil Palm Roots Influenced by Root Diameter and Soil Hydrological Regime Amanatun Nisa; Triadiati Triadiati; Sulistijorini Sulistijorini; Martyna M Kotowska
HAYATI Journal of Biosciences Vol. 31 No. 1 (2024): January 2024
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.31.1.171-181

Oil palm has been widely studied regarding growth and development, water use, productivity, and other economically relevant functions. However, not much is known about the hydraulic conductivity of oil palm root systems and how xylem vessels perform their function to transport water from roots to shoots so far. This information is needed to describe oil palm strategies to maintain water status, especially in oil palms that grow under various soil hydrological regimes. To investigate the root hydraulic performance, we measured mean xylem vessel diameter (D), vessel density (VD), vessel lumen area (Alumen), and potential hydraulic conductivity (Kp) for oil palm root samples in seasonally flooded riparian and well-drained sites at Harapan Jambi Forest. The result showed that D, Alumen, and Kp increased with increasing root diameter at both plantation types. On the contrary, VD significantly decreased with increasing root diameter. Potential hydraulic conductivity (Kp) in riparian sites was smaller than in well-drained sites and significantly different in root diameter >2-5 and >5-10 mm and related to both plantation types. The low potential hydraulic conductivity of root xylem vessels and the narrowing of xylem vessel lumen that occurs in oil palm roots in the seasonally flooded riparian sites were presumed as adaptation mechanisms to maintain water supply from the roots to the shoot in oil palm plants in these sites.

Co-Authors Agik Suprayogi Akbar Adjie Pratama ALEX HARTANA Amanatun Nisa Anastastia Raditya Hidayanti Andesmora, Evan Vria ANGELIA REZTY FITRIANI SITUMORANG Angio, Melisnawati H. Ani Sulistiyani Arie Aryanto Christoph Leuschner Damayanti, Frisca Dasumiati Dasumiati Delfi Trisnawati DIANA AGUSTIN CAROLINA DIBYO PRONOWO Dyah Iswantini Edi Guhardja Hadi Susilo Hamim Hamim Hamim Hidayanti, Anastastia Raditya IBNUL QAYIM Iswandi Anas Kartiko, Wilda Ulinnuha Kurniati Kurniati Kusumaningtyas Pitaloka, Mutiara Lady Diana Tetelepta, Lady Diana Laksmi Puspitasari Martyna M Kotowska Melisnawati H. Angio Meriem, Selis Miftahudin . Muliyah, Evi MUTTAQIN, MAFRIKHUL Nampiah Sukarno Nelly Saidah Amalia Ning Tyas, Kartika NISA RACHMANIA MUBARIK Nurul Hidayati Nurul Hidayati Putri Maulida, Azkia Rahminiwati, Min Rani Apriyani Raharja Resti Wahyuni Resti Wahyuni RIKA RAFFIUDIN Rismayanti Rismona, Nurwani Sagala, Zuraida Samhita, Sasya Sarlan Abdulrachman Slamet Arif Susanto SOEKISMAN TJITROSEMITO Soekisman Tjitrosoedirdjo Sonya Tobing Subaryanti Subaryanti Subaryanti Subaryanti Subaryanti Sudarsono Sugiyanta Sulistijorini Sulistyaningsih, Yohana Caecilia Sulitijorini, Sulitijorini SUSILAWATI, SUSI Syamsul Falah Tata, Made Hesti Lestari Tonra, Melda Syam Utut Widyastuti Violita Violita Yasinta Ratna Esti Wulandari Yoan Ramasita Yohana C. Sulistyaningsih Yohana Caecilia Sulistyaningsih Yuke Mardiati, Yuke

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