Faculty Profiles - EHARA Hiroshi

Waterlogged Conditions Influence the Nitrogen, Phosphorus, Potassium, and Sugar Distribution in Sago Palm (Metroxylon sagu Rottb.) at Seedling Stages. Reviewed International journal

Aidil Azhar, Koki Asano, Daisuke Sugiura, Mana Kano-Nakata, Hiroshi Ehara

Plants (Basel, Switzerland) Vol. 11 ( 5 ) 2022.3

Authorship：Last author,　Corresponding author Language：English Publishing type：Research paper (scientific journal)

Sago palm (Metroxylon sagu Rottb.) grows in well-drained mineral soil and in peatland with high groundwater levels until complete submersion. However, the published information on nutrient uptake and carbohydrate content in sago palms growing under waterlogging remains unreported. This experiment observed sago palm growth performance under normal soil conditions (non-submerged conditions) as a control plot and extended waterlogged conditions. Several parameters were analyzed: Plant morphological growth traits, nitrogen, phosphorus, potassium, and sugar concentration in the plant organ, including sucrose, glucose, starch, and non-structural carbohydrate. The analysis found that sago palm morphological growth traits were not significantly affected by extended waterlogging. However, waterlogging reduced carbohydrate levels in the upper part of the sago palm, especially the petiole, and increased sugar levels, especially glucose, in roots. Waterlogging also reduced N concentration in roots and leaflets and P in petioles. The K level was independent of waterlogging as the sago palm maintained a sufficient level in all of the plant organs. Long duration waterlogging may reduce the plant's economic value as the starch level in the trunk decreases, although sago palm can grow while waterlogged.

DOI： 10.3390/plants11050710

Identification of differentially expressed transcripts for trunk formation in sago palm using annealing control primer GeneFishing technique Reviewed

PubMed

Hussain Hasnain, Edward-Atit Anastasia Shera, Julaihi Norzainizul, Tommy Rina, Nisar Mehvish, Hamdan Nurhazlina, Ehara Hiroshi

Journal of Applied Biology and Biotechnology Vol. 10 ( 2 ) page： 21 - 34 2022.2

Effect of chicken manure and chemical fertilizer on the yield and qualities of white mugwort at dissimilar harvesting times Reviewed

Ornprapa Thepsilvisut, Preuk Chutimanukul, Sudathip Sae-Tan, Hiroshi Ehara

PLOS ONE Vol. 17 ( 4 ) page： e0266190 - e0266190 2022

Authorship：Last author Language：English Publishing type：Research paper (scientific journal) Publisher：Public Library of Science (PLoS)

One of the key components that affects soil productiveness, plant growth, and crop quality is fertilization. The effect of fertilizer, both organic and chemical, on the extremely acidic (pH 4.10) sandy loam soil chemical properties, yield, and quality of white mugwort grown were evaluated in this study. The field experiment arranged in a randomized complete block design, with four replications was conducted in Prachin Buri province, Thailand. There were six treatments, no fertilization (control), chemical fertilizer (25-7-7 + 46-0-0) applied at 187.50 (66.56 N:6.77 P2O5:6.77 K2O kg ha-1) kg ha-1 and applied at 375.00 (133.12 N:13.13 P2O5:13.13 K2O kg ha-1) kg ha-1, chicken manure applied at 3.36, 6.72, and 10.08 t ha-1. After harvesting, application of chicken manure tended to increase soil organic matter compared to the control, however, the application of chemical fertilizer did not show the same effect. The fresh weight of white mugwort increased with the rise in both fertilizer levels. Chicken manure application at 10.08 t ha-1 produced the highest fresh weight at all times. The level of accumulated nitrate was significantly greater when fertilizer rates increased. In addition, the total phenolic content of the white mugwort fertilized with chicken manure was higher than that fertilized with chemical fertilizer. However, there was no association between the DPPH radical scavenging capacity at harvesting times and different fertilization. Based on the results, chicken manure applied at 10.08 t ha-1 gave the best yield and higher total phenolic content of white mugwort, which was probably due to the improved soil organic matter.

DOI： 10.1371/journal.pone.0266190

PubMed

Detection of Suitable Wetlands for Paddy Field Harvesting of Taro (Colocasia esculenta) to Minimize Damage Caused by Taro Beetles (Papuana uniondis) on Gau Island, Fiji

MIYAMOTO Kana, ITAYA Akemi, NAKASHIMA Chiharu, MISHIMA Takashi, TOKUDA Hiromi, YOSHIMATSU Takao, EHARA Hiroshi

Tropical Agriculture and Development Vol. 66 ( 2 ) page： 64 - 72 2022

Language：English Publishing type：Research paper (scientific journal) Publisher：Japanese Society for Tropical Agriculture

Taro beetle damage has recently been reported on Gau Island, Fiji, causing economic loss for the taro business. This significantly reduced farmers’ incomes and the cultural value of taro. Swamp taro cultivation is expected to be a solution to taro beetle damage. Even though studies investigating the mitigation of taro beetle damage in paddy fields are not common, taro beetles do not have the ability to go beyond a certain depth in muddy condition. This study investigated suitable wetlands for taro cultivation by using the topographic wetness index (TWI). The calculation also considered protection forest zones and accessibility as analyzed by RapidEye satellite images, normalized difference vegetation index (NDVI), and buffer function. Results showed that 26.03% of the island’s mass has potential for the development of paddy fields. Although the result was larger than predicted, there are differences between potential areas for each village. However, these areas were more than double size of the existing farmland of each village. Estimated yields corresponding to the potential areas were also presented in the study; these indicated that more than half of villages might be able to yield more than 0.50 t of taro production.

DOI： 10.11248/jsta.66.64

Comparison of growth and ion absorption with compatible solute accumulation of three wild Vigna species under salt stress Reviewed

Yoshida, J., Tomooka, N., Mishima, T., Matsuda, Y. and Ehara, H.

Tropical Agriculture and Development Vol. 65 ( 4 ) page： 194 - 205 2021.12

Arbuscular mycorrhizal communities in the roots of sago palm in mineral and shallow peat soils Reviewed International coauthorship International journal

Asano, K., Kagong, W. V. A., Mohammad, S. M. B., Sakazaki, K., Talip, M. S. B. H. A., Sahmat, S. S., Yok, M. C. K., Isoi, T., Nakata-Kano, M. and Ehara, H.

Agriculture Vol. 11 ( 11 ) 2021.12

Response and resilience of Asian agrifood systems to COVID-19: An assessment across twenty-five countries and four regional farming and food systems Reviewed International coauthorship International journal

John M. Dixon, Jeevika Weerahewa, Jon Hellin, Maria Fay Rola-Rubzen, Jikun Huang, Shalander Kumar, Anup Das, Muhammad Ejaz Qureshi, Timothy J. Krupnik, Kamil Shideed, Mangi L. Jat, P.V. Vara Prasad, Sudhir Yadav, Aamer Irshad, Abdybek Asanaliev, Aigul Abugalieva, Aziz Karimov, Basundhara Bhattarai, Carol Q. Balgos, Fred Benu, Hiroshi Ehara, Jharendu Pant, Jon M.P. Sarmiento, Jonathan C. Newby, Jules Pretty, Hiromi Tokuda, Horst Weyerhaeuser, Larry N. Digal, Lingling Li, Md. Abdur Rouf Sarkar, Md. Zihadul Abedin, Pepijn Schreinemachers, Quentin Grafton, Ram C. Sharma, Saidjamol Saidzoda, Santiago Lopez-Ridaura, Shuan Coffey, Suan Pheng Kam, Su Su Win, Suwanna Praneetvatakul, Tek Maraseni, Van Touch, Wei-li Liang, Yashpal Singh Saharawat, Jagadish Timsina

Agricultural Systems Vol. 193 page： 103168 - 103168 2021.10

Traditional knowledge of medicinal plants on Gau Island, Fiji: differences between sixteen villages with unique characteristics of cultural value Reviewed International coauthorship International journal

Kana Miyamoto, Hiroshi Ehara, Randolph Thaman, Joeli Veitayaki, Takehito Yoshida, Hikaru Kobayashi

Journal of Ethnobiology and Ethnomedicine page： 17 - 58 2021.10

Commercialization of sago starch in Indonesia: Production, consumption and international trading Reviewed International coauthorship International journal

Marlisa Ayu Trisia, Hiroshi Ehara

Sago Palm Vol. 29 ( 1 ) page： 39 - 47 2021.8

Sago palm (Metroxylon sagu Rottb.) response to drought condition in terms of leaf gas exchange and chlorophyll a fluorescence Reviewed International coauthorship

Aidil Azhar, Daigo Makihara, Hitoshi Naito, Koki Asano, Mai Takagi, Saeka Unoki, Rena Tomita, Barahima Abbas, Hiroshi Ehara

PLANT PRODUCTION SCIENCE Vol. 24 ( 1 ) page： 65 - 72 2021.1

Authorship：Last author Language：English Publishing type：Research paper (scientific journal) Publisher：TAYLOR & FRANCIS LTD

Sago palm (Metroxylon sagu Rottb.) photosynthetic performance was evaluated under drought conditions through leaf gas exchange and chlorophyll a fluorescence measurement. Drought has an impact on sago palm's leaf gas exchange parameters and its chlorophyll fluorescence of PSII. Stomatal limitations were found to be the main factor limiting photosynthetic activities of sago palm under drought conditions. Photosynthetic rate decreased following the inhibition in the PSII reaction center. Early detection of interference upon the efficiency of the PSII reaction center due to drought stress was recorded by chlorophyll a fluorescence measurement.[GRAPHICS].

DOI： 10.1080/1343943X.2020.1794914

The impact of different soil water levels on nitrogen, phosphorus, and potassium uptake, photosynthetic performance, and sugar distribution of sago palm seedlings Reviewed International coauthorship International journal

Aidil Azhar, Fitri Audia, Koki Asano, Daigo Makihara, Hitoshi Naito, Daisuke Sugiura, Hiroshi Ehara

Agrosystems, Geosciences & Environment Vol. 4 ( 3 ) 2021

The Role of the Sago Supply Chain for Rural Development in Indonesia: A Review and Perspective Reviewed International coauthorship International journal

Marlisa Ayu Trisia , Masashi Tachikawa , Hiroshi Ehara

Reviews in Agricultural Science 2021

Factors Determining Sago Starch Import Demand: Empirical Evidence from Japan Reviewed International journal

Marlisa Ayu Trisia, Hironobu Takeshita, Mayumi Kikuta, Hiroshi Ehara

Journal of International Logistics and Trade Vol. 18 ( 4 ) page： 159 - 167 2020.12

Authorship：Last author Language：English Publishing type：Research paper (scientific journal) Publisher：Jungseok Research Institute of International Logistics and Trade

Sago starch (Metroxylon sagu Rottb.) is one of the starches imported into Japan. Recently, sago starch has been promoted as a healthy type of starch because it is gluten-free and non-allergenic. This study aims to identify the factors affecting sago starch import demand during the period 1978-2017 in Japan by using a double logarithmic linear function. The study revealed that the price of sago starch, GDP, aging population rate and tariff-rate quota policy are significant factors influencing sago starch importation in Japan.

DOI： 10.24006/jilt.2020.18.4.159

From producers to consumers: An analysis of distribution channels and added value of sago products in East Java, Indonesia Reviewed

Trisia, M. A, Ehara, H

Sago Palm Vol. 28 ( 2 ) page： 49 - 55 2020.12

Authorship：Last author,　Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：The Japanese Societ of Sago Palm Studies

The distribution channel is vital in the sago business because it connects producers and consumers. In this paper, we identify the distribution channels of sago products and their functional classification. We found that the distribution of sago products, such as dried sago and roasted sago (sagu kotak), in East Java is classified as indirect distribution, which relies on intermediaries. Intermediaries such as distributors, wholesale agents, and retailers are primarily actors that directly coordinate buying, selling, storing, and distributing sago products from Riau and Maluku to consumers in East Java. In addition, our calculation showed that sago pudding has a highly profitable value-added process as compared to that of roasted sago.

DOI： 10.57418/sagopalm.28.2_49

Potassium fertilizer under iron toxicity stress of ex-situ conditions and its effect to Fe content in the rice grain Reviewed International coauthorship

Saeka Unoki, Trias Sitaresmi, Hiroshi Ehara, Yudhistira Nugraha

Jurnal Penelitian Pertanian Tanaman Pangan Vol. 4 ( 2 ) page： 81 - 81 2020.8

Language：English Publishing type：Research paper (scientific journal) Publisher：Indonesian Agency For Agricultural Research and Development (IAARD)

Iron toxicity affects the growth and yield of rice plant. Overcoming the damage of rice production by iron toxicity requires furthermore researches from laboratory to field levels. Here, we study responses of rice genotypes to iron toxicity between vegetative stage in hydroponic and whole grow stages in the pot. The first experiment was hydroponic experiment using twelve rice genotypes which were growth in the Yoshida Solution with addition of 0.2 % of agar. Three level of iron was given at 0, 500 and 700 ppm. The second experiment was the pot experiment using alluvial soil added with 3.000 ppm of ferrous combine with four levels of potassium and the control on Cilamaya Muncul (tolerant), Inpara 8 (moderate tolerant) and IR 64 (susceptible). In hydroponic experiment, even though the symptom appeared obviously, the leaf bronzing score (LBS) of tolerant and sensitive genotypes were not different. Physiological traits were significantly affected by Fe treatment in all varieties. Then symptom and physiological traits were significantly correlated. Through the pot experiment, it was confirmed the tolerance of each varieties. However, we couldn’t see the correlation between the LBS on hydroponic and soil at this time. And the heading delay was new finding, but it depended on varieties. We also could see the possibility of potassium application to inhibit iron toxicity but still we need to explore how it works. Kata kunci: iron toxicity, rice, hydroponic, soil

DOI： 10.21082/jpptp.v4n2.2020.p81-88

Importance of phosphorus and potassium in soil-specific nutrient management for wet-season rice in Cambodia. Experimental Agriculture Reviewed International coauthorship International journal

Kong, K, Hin, S, Seng, V, Ismail, A. M, Vergara, G, Choi, I-R, Ehara, H, Kato, Y

Experimental Agriculture Vol. 56 ( 2 ) page： 204 - 217 2020.4

Potential yield and nutrient requirements of direct-seeded, dry-season rice in Cambodia Reviewed International coauthorship International journal

Kong , K, Hin, S, Seng, V, Ismail, A. M, Vergara, G, Choi, I-R, Ehara, H, Kato, Y

Experimental Agriculture Vol. 56 ( 2 ) page： 255 - 264 2020.4

Unique responses of three highly salt tolerant wild Vigna species against salt stress Reviewed International coauthorship International journal

Yoshida, Y, Tomooka, N, Khaing, T. Y, Shantha, P. G. S, Naito, H, Matsuda, Y, Ehara, H

Plant Production Science Vol. 23 ( 1 ) page： 114 - 128 2020.1

Evaluating sago palm (Metroxylon sagu Rottb.) photosynthetic performance in waterlogged conditions: utilizing pulse-amplitude-modulated (PAM) fluorometry as a waterlogging stress indicator Reviewed International coauthorship International journal

A. Azhar, D. Makihara, H. Naito, H. Ehara

Journal of the Saudi Society of Agricultural Sciences Vol. 19 ( 1 ) page： 37 - 42 2020

Authorship：Last author,　Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：King Saud University

Photosynthetic performance of sago palm (Metroxylon sagu Rottb.) was evaluated in normal and waterlogged conditions. Net assimilation rate (AN), light response curve of net assimilation rate (AN/I) and pulse-amplitude modulation fluorescence vs. irradiance (PAM/I), leaf water potential, leaf chlorophyll content and leaflet area were measured. AN was higher in a particular period of waterlogging than in the normal condition. However, prolonged waterlogging (more than two months) negatively affected sago palm photosynthetic capacity. This was indicated by reduction in several photosynthetic parameters such as AN, maximum value of AN obtained at maximum irradiance (AN ( I max)), quantum yield at zero to 200 µmol m−2 s−1 irradiance (ϕ( I o_ I 200)), asymptotic photosynthetic efficiency (αo), and maximum electron transport rate (ETRmax). The plants experiencing waterlogging produced high qNmax and NPQmax values. Prolonged waterlogging period also caused significant reduction in leaf water potential (ψleaf) and photosynthetic pigments content. Normal soil conditions with a sufficient amount of water are preferable in order for the plant to generate higher photosynthetic capacity and facilitate stable sago production.

DOI： 10.1016/j.jssas.2018.05.004

Colonization of Roots in Sago Palm Seedlings Associated with Commercial Mycorrhizal Inocula Reviewed International coauthorship

Asano, K., Isoi, Y., Murano, H., Azhar, A., Pasolon, Y. B. and Ehara, H.

Sago Palm Vol. 27 ( 1 ) page： 9-14 2020

Agro-economic evaluation of fertilizer management for wet season rice in southern Cambodia Reviewed International coauthorship

Kong, K., Kato, Y., Men, S., Seng, V., Yamauchi, A., Kikuta, M., Choi, I-R. and Ehara, H.

Tropical Agriculture and Development Vol. 64 ( 4 ) page： 210-218 2019.12

Colonization of Roots in Sago Palm Seedlings Associated with Commercial Mycorrhizal Inocula Reviewed

Asano, K, Isoi, Y, Murano, H, Azhar, A, Pasolon, Y. B, Ehara, H

Sago Palm Vol. 27 ( 1 ) page： 9 - 14 2019.10

Phylogenetic Study of Metroxylon Palms in Southeast Asia and Oceania Based on 5S nrDNA Spacer Sequence Data Reviewed

Hiroshi Ehara, Toshiki Yamamoto, Tohru Tsuchiya, Hitoshi Naito, John, L. Dowe, Will C. McClatchey, Takashi Mishima, Akemi Itaya, Chitoshi Mizota, Yulius B. Pasolon, Philimon Ala, Marika Tuiwawa, Alivereti Naikatini, Issac A. Rounds, Talie Foliga, Siosinamele Lui, Samantha Kwan

SAGO PALM Vol. 26 ( 2 ) page： 37 - 43 2019.2

A Value Chain Analysis of Small-Scale Sago Industries: A Case Study of South Sulawesi, Indonesia Reviewed International coauthorship

Marlisa Ayu Trisia, Andi Patiware Metaragakusuma, Katsuya Osozawa, and Hiroshi Ehara

Sago Palm Vol. 26 ( 1 ) page： 1-12 2018.12

Responses of sago palm under water deficiency condition Reviewed International coauthorship International journal

Prathumyot W., Chitaree L., Chakhatrakan S., Romkaew J., Waramit N., Matta F., Ehara H.

International Journal of Agricultural Technology Vol. 14 ( 7 ) page： 1679 - 1684 2018.12

Photosynthesis of sago palm (Metroxylon sagu rottb.) seedling at different air temperatures International coauthorship International journal

Aidil Azhar, Daigo Makihara, Hitoshi Naito, Hiroshi Ehara

Agriculture (Switzerland) Vol. 8 ( 1 ) page： 4 - 4 2018.1

Language：English Publishing type：Research paper (scientific journal) Publisher：MDPI AG

Photosynthetic activities of the sago palm (Metroxylon sagu Rottb.) were studied to find out its sensitivity to changes in ambient air temperature. The minimum ambient air temperature designed for the experiment was 25–29 °C, while the higher end was 29–33 °C. Several photosynthetic parameters were studied to support our analysis in sago photosynthetic activity, including diurnal leaf gas exchange, assimilation rate vs. CO2 concentration, leaf greenness, leaf chlorophyll content, and photosynthetic rate vs. irradiance. We found that sago palm photosynthetic activity tends to be more sensitive to minimum than to maximum ambient air temperature. The plants exposed to higher air temperatures had dark green leaf color associated with higher rates of diurnal photosynthesis, chlorophyll content, and rubisco limited photosynthetic activity. They also exhibited higher trend in optimum irradiance absorption level. Consequently, maximum light energy dissipation occurred at higher temperatures.

DOI： 10.3390/agriculture8010004

High-level ethanol production from sago residue hydrolysate prepared with thermostable α-amylase and amyloglucosidase Reviewed International coauthorship

Utami, A., Isono, N. and Ehara, H.

Sago Palm Vol. 25 ( 1 ) page： 14-20 2017.7

Effects of wet milling sago pith waste on yield and physical properties of sago starch Reviewed International journal

Santoso, H, Sakakura, K, Naito, H, Ohmi, M, Nishimura, Y, Uchiyama, T, Itaya, A, Hisamatsu, M, Ehara, H, Mishima, T

International Journal of Engineering & Technology Vol. 17 ( 2 ) page： 1 - 6 2017.4

A rapid quantification method for tissue Na+ and K+ concentrations in salt-tolerant and susceptible accessions in Vigna vexillata (L.) A. Rich Reviewed International coauthorship International journal

Kohtaro Iseki, Rusama Marubodee, Hiroshi Ehara, Norihiko Tomooka

PLANT PRODUCTION SCIENCE Vol. 20 ( 1 ) page： 144 - 148 2017

Language：English Publishing type：Research paper (scientific journal) Publisher：TAYLOR & FRANCIS LTD

A rapid quantification method for leaf sodium (Na+) and potassium (K+) concentrations was developed using a compact ion meter. Leaf ion concentrations were evaluated for species of Vigna vexillata (L.) A. Rich. after two weeks of treatment with 0-200 mM of sodium chloride. To compare the ion extraction efficiency, extraction solutions of distilled water and ammonium acetate were tested. The ion concentrations of extracts obtained by both solutions were measured using an ion meter, and the values were validated using ion chromatography. For both extraction solutions, the ion meter values were highly correlated with those of the ion chromatograph. However, correlations between ion meter and chromatograph values were largely different for Na+ and K+. The rapid quantification of ion concentrations using an ion meter developed in this study was successfully utilized for evaluating differences in leaf Na+ concentrations, K+ concentrations, and K+/ Na+ ratio in species of V. vexillata.

DOI： 10.1080/1343943X.2016.1251826

Effects of the Higher Top to Basal Nitrogen Dressing Ratio on Growth and Yield of Wheat Reviewed

Effect of biogas effluent from pig manure and durian residues on soil chemical property and growth of marigold Reviewed International journal

Chit-aree, L, Ehara, H, Chakhatrakan, S, Prathumyot, W, Frank, B. M

International Journal of Agricultural Technology Vol. 13 ( 7.1 ) page： 1285 - 1293 2017

Effect of different aluminum concentrations in culture media on growth characteristics of sago palm seedlings Reviewed International coauthorship

Chutimanulul, P., T. Inagaki, H. Naito, M. Goto and H. Ehara

SAGO PALM Vol. 24 ( 1 ) page： 1-19 2016.8

Growth characteristics of two Indonesian rice cultivars under several submerged durations Reviewed

Irmawati, H. Ehara, I. Kodama, M. Osawa, R. A. Suwignyo, A. Junaedi and J. Sakagami

Tropical Agriculture and Development Vol. ６０ ( １ ) page： 40−47 2016.3

Watanabe Kazuhiro, Nakazono Kou, Nakamura Daisuke, Nishitani Tomohiro, Nishimura Natsuki, Matsushima Hiroaki, Tanio Masahiko, Ehara Hiroshi

Japanese Journal of Crop Science Vol. 85 ( 4 ) page： 373 - 384 2016

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：CROP SCIENCE SOCIETY OF JAPAN

In order to develop a high-yielding culture method for wheat we examined the effects of a higher top to basal nitrogen dressing ratio (HTBD) on the growth and yield of the new lodging tolerant variety "Satonosora" for two years. The reduced basal dressing accompanied with increased top dressing, increased the leaf area index (LAI) after jointing stage, and maintained a high net assimilation rate (NAR) during the late ripening period resulting in increased dry matter production. On the other hand, smaller stem number due to reduced basal dressing and plentiful nitrogen top dressing at the jointing stage were considered to alleviate competition of assimilate and nitrogen among stems and improved stem survival rate, resulting in both larger panicle number and panicle size. High NAR during the late ripening period might also increase the 1000 grain weight. As a result of the increased dry matter production and yield components, a HTBD increased the yield of wheat by 15 - 50%. On the other hand, some problems hindering practical use were clarified; delay of maturation, decline in the apparent quality, excess grain protein content, and acceleration of soil acidification.

DOI： 10.1626/jcs.85.373

CiNii Books

Rural socio-economic development: A comparative study of Thai and Japanese experiences on organic Farming Reviewed International journal

Suindramedhi, S, Tokuda, H, Ehara, H

GMSARN International Journal Vol. 10 page： 57 - 68 2016

Durian residues as potential resource for biogas;production in;an;anaerobic systemInternational Journal of Agricultural Technology 12(7.1): 1265-1273 Reviewed

Prathumyot, W, Prasopphonrangsi, P, Chit-aree, L, Ehara, H, Chakhatrakan, S

International Journal of Agricultural Technology Vol. 12 ( 7.1 ) page： 1265 - 1273 2016

Swamp rice cultivation in South Sumatra, Indonesia: an overview Reviewed

Irmawati1, H. Ehara, R. A. Suwignyo and J. Sakagami

Trop. Agr. Develop. Vol. 59 page： 35-39 2015

Salt tolerance in wild relatives of adzuki bean, Vigna angularis (Willd.) Ohwi et Ohashi Reviewed

Yoshida,Y., R. Marubodee, E. Ogiso-Tanaka, K. Iseki, T. Isemura, Y. Takahashi, C. Muto, K. Naito, A. Kaga,K. Okuno, H. Ehara and N. Tomooka

Genetic Resources and Crop Evolution 2015

Construction of an SSR and RAD-marker based molecular linkage map of Vigna vexillata (L.) A. Rich. Reviewed

Marubodee, R., E. Ogiso-Tanaka, T. Isemura, S. Chankaew, A. Kaga, K. Naito, H. Ehara and N. Tomooka

PLoS ONE 2015

Rate of assimilation total and relative growth of drought tolerant rice on paddy system (Laju asimilasi bersih dan laju tumbuh relatif varietas padi toleran kekeringan pada sistem sawah) Reviewed International coauthorship

Maisura, Chozin, M. A., Lubis, I., Junaedi, A. and Ehara, H.

Jurnal Agrium Vol. 12 ( 1 ) page： 10 - 16 2015

Effects of micro powder milling on physicochemical properties of sago starch Reviewed International coauthorship

Santoso, B., Sakakura, K., Naito, H., Ohmi, M., Nishimura, N., Uchiyama, T., Itaya, A., Hisamatsu, H., Ehara, H. and Mishima, T.

Journal of Applied Glycoscience Vol. 62 page： 73 - 80 2015

Growth response and nutrient concentrations of sago palm under aluminum stress

Anugoolprasert, O., H. Ehara and H. Naito

TIJSAT Vol. 19 page： 37-52 2014

Some physiological character responses of rice under drought conditions in a paddy system Reviewed

Maisura, M. A. Chozin, I. Lubis, A. Junaedi and H. Ehara

J. ISSAAS Vol. 20 page： 104-114 2014

Growth of sago palm seedlings under different soil pH conditions at the experimental farm in Kendari, Indonesia Reviewed

Chutimanukul, P., H. Tanaka, H. Naito, T. Inagaki, Y. B. Pasolon, M. S. Padang, T. Mishima, Y. Nishimura, A. Itaya, T. Uchiyama, A. Junaedi and H. Ehara

SAGO PALM Vol. 22 page： 13-19 2014

Preparation of biodegradable foam from sago residue Reviewed

Utami, A. S., T. C. Sunarti, N. Isono, M. Hisamatsu and H. Ehara

SAGO PALM Vol. 22 page： 1-5 2014

Comparison of young seedling growth and sodium distribution among sorghum plants under salt stress Reviewed

Chaugool, J., H. Naito, S. Kasuga and H. Ehara

Plant Prod. Sci. Vol. 16 page： 261-270 2013

Nutritional evaluation and in vitro ruminal fermentation of sorghum cultivars Reviewed

Chaugool, J., M. Kondo, S. Kasuga, H. Naito, M. Goto and H. Ehara

J. Food Agr. Environ. Vol. 11 page： 345-351 2013

サゴヤシ資源の生産・流通実態と今後の展望−インドネシア南東スラウェシを事例として− Reviewed

内山智裕，西村美彦，パソロン Y. B.，江原　宏

農業経済論文集 Vol. 2013年度 page： 327-331 2013

同時生起行列から得られるテクスチャ情報を用いたサゴヤシ林の特徴抽出 Reviewed

岩田敏敬，板谷明美，江原　宏，久松　眞，三島　隆，内山智裕，内藤　整，近江正陽，西村美彦

中部森林研究 Vol. 61 page： 175 - 178 2013

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：日本森林学会

Although Sago palm have been focused as bioenergy as well as foods, the production has decreased. In our previous study, we predicted the potential site of sago palm in Sulawesi Island, Indonesia. The total area was 1282 km2. The model for prediction of sago palm showed the maximum temperature of the warmest month was the most important variable affecting sago palm potential distribution. Climate change is also an important global issue for crop production. In this study, we predicted the future distribution and harvesting of Sago palm affected by the climate change using the Maxent model and it was compared with the current prediction that was predicted in our previous study.