Faculty Profiles - GOTO Tanjuro

Papers - GOTO Tanjuro

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Effect of plug transplant age and photoperiod treatment at seedling stage on cut flower quality of Celosia cristata L. Reviewed

Tanjuro Goto, Yuki Muraoka

Acta Horticulture 782 201 - 206 2008

Authorship：Lead author,　Corresponding author Language：English Publishing type：Research paper (international conference proceedings) Publisher：INTERNATIONAL SOCIETY HORTICULTURAL SCIENCE

Celosia cristata L. Kurume type is a quantitative short-day plant with entirely globular inflorescences that is popular as a cut flower in Japan. The photoperiod sensitivity limits production and this could be overcome by prolonging its seedling stage by long-day treatments. In this study, the effects of transplant age and long-day treatment at seedlings stage on cut flower quality of C cristata Kurume type cv. Sakata-pride were investigated. Plug transplants raised under 15h (natural day length) or 24-h photoperiods in a greenhouse were transplanted into wooden containers when two, four or eight leaves had unfolded. Flower bud initiation had already occurred in transplants with eight unfolded leaves grown in natural but not in 24-h day length. Days to visible bud were prolonged by 24-h treatment. The cut flowers grown in 24h were longer than those grown in natural day length. The weight of cut flower and inflorescence decreased as transplant age increased. The inflorescence form changed from globular to flat as transplant age increased. The youngest transplants had the highest cut flower quality. These results suggest that in order to produce highly marketable quality cut flowers of C cristata Kurume type, the plug transplants must be planted before 4 leaves unfold, and that prolonging the seedling stage may be difficult through long-day treatment.

DOI： 10.17660/ActaHortic.2008.782.23

Web of Science

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Development of mobile eggplant grading robot for dynamic in-field variability sensing: Manufacture of robot and performance test Reviewed

Vui Kiong Chong, Mitsuji Monta, Kazunori Ninomiya, Naoshi Kondo, Kazuhiko Namba, Eichi Terasaki, Takao Nishi, Tanjuro Goto

Engineering in Agriculture, Environment and Food 1 ( 2 ) 68 - 76 2008

Language：English Publishing type：Research paper (scientific journal) Publisher：Elsevier B.V.

A machine vision-based mobile eggplant grading robot was developed as a model to sense and log essential data needed for precision farming and traceability of agricultural crops. The robot consisted of battery railcar, trailer, grading mechanisms including manipulator, end-effector, machine vision and divider. Manually operated, the robot moved along crop ridges during the harvesting process with the grading mechanisms all mounted on the trailer. The robot sensed and logged the field spatial variability dynamically by grading manually harvested eggplant fruit of individual tree. This paper presents the details of manufactured robot and results of the performance test conducted. Test results showed that the robot was feasible for field spatial variability sensing in greenhouse.

DOI： 10.1016/S1881-8366(08)80005-5

Scopus

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培地の形状，施肥方法，栽植密度が熱融着性ポリエステル繊維固化ポットレス培地で育てたパンジーの生育に及ぼす影響

後藤丹十郎, 大橋佑司, 清水希, 森下照久, 藤井一徳, 石川順也, 島浩二

岡山大学農学部学術報告 97 61 - 67 2008

キク‘精興の誠’の黄斑発生を助長する温度条件 Reviewed

長菅香織, 後藤丹十郎, 矢野孝喜, 山崎博子, 稲本勝彦, 山崎篤

Horticultural Research (Japan) 7 ( 2 ) 235 - 240 2008

熱融着性ポリエステル繊維固化培地で育成したパンジーのプランター定植後の生育

島浩二, 川西孝秀, 矢部泰之, 森下照久, 藤井一徳, 後藤丹十郎

和歌山農林水産総合技術センター研究報告 9 15 - 19 2008

1A1-G03 Mobile Eggplant Grading Robot : Construction of prototype and field test

CHONG Vui Kiong, MONTA Mitsuji, NINOMIYA Kazunori, KONDO Naoshi, NAMBA Kazuhiko, NISHI Takao, GOTO Tanjuro

The Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec) 2007 _1A1 - G03_1-_1A1-G03_4 2007

Authorship：Last author Language：English Publishing type：Research paper (scientific journal) Publisher：The Japan Society of Mechanical Engineers

Precision Farming practices that required GIS and GPS system are too costly and impractical for small-scale farm. However, site-specific management is still necessary as it contribute in reducing the operation cost and also over usage of pesticides chemicals. A new approach in generating yield and quality map for small scale farm using mobile grading robot has been carried out. A prototype mobile eggplant grading robot was constructed and field test was done. The mobile robot consists of a battery railcar with the grading unit trailer hauled behind. Eggplant fruits were harvested manually and passed to the grading robot. Features information of the eggplant was taken simultaneously with the harvesting location information to create field variability map. Observations found that the constructed prototype robot was capable of accumulating the field variability information during the field test.

DOI： 10.1299/jsmermd.2007._1A1-G03_1

CiNii Article

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セルシート育苗を利用したキクの直接短日定植法の可能性 Reviewed

仲照史, 山口訓史, 後藤丹十郎, 水田洋一, 角川由加, 前田茂一

近畿中国四国農業研究 11 46 - 51 2007

Effect of Nutrient Levels and Mineral Composition on the Occurrence of Leaf-yellow-spot in Chrysanthemum

Oki, A, T. Goto, K. Nagasuga, A. Yamasaki

Sci. Rep. Fac. Agri. Okayama Univ 96 43 - 48 2007

根域容量と日射比例給液制御による給液量がトマトの生育・収量と果実品質に及ぼす影響

吉田裕一, 松野太樹, 新開礼, 後藤丹十郎

岡山大学農学部学術報告 96 37 - 42 2007

熱融着性ポリエステル繊維固化ポットレス培地で育成したペチュニアの生育に及ぼす灌水方法の影響

後藤丹十郎, 島浩二, 東千里, 森下照久, 藤井一徳, 元岡茂治

岡山大学農学部学術報告 95 29 - 34 2006

Flowering of Zantedeshia rehmannii Engl. as affected by combination of tuber storage temperature and duration Reviewed

Goto, T, Kawajiri K, Kageyama Y, Konishi K

Acta Horticulture 639 273 - 279 2005

Increasing the Length of the Transplanting Period of Gypsophila paniculata L. Cuttings Grown in Cell Medium Hardened by Heat Fusion Polyester Fiber Reviewed

Goto Tanjuro, Fujii Kazunori, Motooka Shigeharu, Konishi Kuniyoshi

Horticultural Research (Japan) 4 ( 1 ) 17 - 20 2005

Authorship：Lead author,　Corresponding author Language：Japanese Publishing type：Research paper (scientific journal) Publisher：THE JAPANESE SOCIETY FOR HORTICULTURAL SCIENCE

Rooting, growth and cut flower quality of Gypsophila paniculata L. cuttings grown in cell medium hardened by heat fusion polyester fiber was investigated. Rooting percentages of hardened media were not affected by medium compositions and were higher than those without hardened media. Moreover, the hardened media did not break down whenever root-ball was not formed. Regardless of transplantation age, hardened medium had little effect on transplant growth and cut flower quality. Hardened medium had no effect on the formation of succulent roots. Therefore, we developed a method of transplanting young cuttings before the root-ball formed using the harden cell medium.

DOI： 10.2503/hrj.4.17

CiNii Article

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培地および定植期がキク‘精興の誠’の黄斑発生に及ぼす影響

後藤丹十郎, 沖章紀, 景山詳弘

岡山大学農学部学術報告 94 15 - 18 2005

スプレーギクのベンチ栽培における見かけの養分吸収濃度に基づいた灌水同時施肥栽培法の開発

島浩二, 後藤丹十郎, 景山詳弘

岡山大学農学部学術報告 94 19 - 24 2005

スプレーギクのベンチ栽培における施肥方法が切り花品質と養分吸収に及ぼす影響 Reviewed

3 ( 1 ) 23 - 26 2004

Effects of Nutrient Level at Planting Time on Growth and Quality of Cut Flower in Spray Chrysanthemums Reviewed

Shima Kohji, Goto Tanjuro, Kageyama Yoshihiro

Hort. Res. (Japan) 3 ( 2 ) 155 - 160 2004

Language：Japanese Publisher：THE JAPANESE SOCIETY FOR HORTICULTURAL SCIENCE

Effects of the nutrient level at planting time on growth and quality of cut flower in spray chrysanthemums were investigated. An equal amount of fertilizer measuring approximately N 267 mg/shoot was applied to each plot with different basal fertilizer ratios of 0 %, 25 %, 75 % and 100 %, respectively. The residual nutrients divided into 10 equal dosages were applied every week. For reference, fertilizer was also applied according to the conventional recommended method (N 500 mg/shoot). Initial growth of plants in 25 % and 50 % plots was better than that in the other plots. Necrosis due to excessive fertilization was observed in the leaves of plants in the 75 % and 100 % plots. Regardless of the ratio of basal fertilizer to total application, the quality of cut flowers was good and marketable. The quality of cut flowers from the conventional plot was lower than that from other plots due to excessive growth of leaves and stems. It is desirable to maintain the initial nutrient levels at planting time in a range between 50 and 300 ppm nitrate using a soil solution in spray chrysanthemum production.

DOI： 10.2503/hrj.3.155

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スプレーギクのベンチ栽培における季節別の水消費量

島浩二, 後藤丹十郎, 景山詳弘

岡山大学農学部学術報告 93 33 - 37 2004

培養液中NaCl濃度がピートバッグ栽培イチゴの生育，収量と品質に及ぼす影響 Reviewed

2 ( 3 ) 171 - 174 2003

セル培地に必要な散水量と植物体の大きさの関係

後藤丹十郎, 吉田裕一

岡山大学農学部学術報告 92 27 - 30 2003

Effect of Fertilization Application Levels Based on the Nitrogen Application Standard Curve on Cut Flower Quality and Nutrient Uptake of Spray Chrysanthemums in Bench Culture Reviewed

Shima Kohji, Goto Tanjuro, Kageyama Yoshihiro

Hort. Res. (Japan) 1 ( 4 ) 249 - 254 2002

Language：Japanese Publisher：THE JAPANESE SOCIETY FOR HORTICULTURAL SCIENCE

The effects of nutrient application based on the nitrogen application standard curve (NASC) developed in the hydroponics system on the cut flower quality and nutrient uptake of spray chrysanthemums in bench culture were investigated. Plants were grown at 0.75, 1.0, 1.25 and 1.5 strengths of NASC, including 356, 474, 593, 711 mg total nitrogen/shoot, respectively. About 80% of harvested flowers were marketable flowers having the weight of ≧ 40 g when the lower 20 cm leaves were trimmed after cutting on 80 cm shoot (the shipping standard size in Wakayama) in all application levels. Using the 0.75 strength, there was little residual nitrogen in the soil at harvest. However, Using treatments of ≧ 1.0 strength, an accumulation of nitrogen in the soil was detected during the cultivation period. The residual nutrients in the soil increased with increases in the fertilization level. Consequently, nutrient application based on 0.75 NASC strength can produce high quality cut flowers in bench culture, and is suitable for the environment due to the low levels of nutrients remaining in the soil. Modification of NASC is recommended to improve plant growth in the early stages.

DOI： 10.2503/hrj.1.249

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