著者

宮下 佳廣 渡辺 均 岩崎 寛 渡辺 均 Hitoshi Watanabe ワタナベ ヒトシ 岩崎 寛 Yutaka Iwasaki イワサキ ユタカ 山口 利隆 Toshitaka Yamaguchi ヤマグチ トシタカ

出版者

千葉大学大学院園芸学研究科

雑誌

食と緑の科学 (ISSN:18808824)

巻号頁・発行日

no.64, pp.77-89, 2010-03

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2009年,千葉大学園芸学部は創立100周年を迎えた.今日までの多くの研究業績を踏まえ新たな世紀に向けて取り組むテーマの一つとして,2010年から園芸学部と戸定会との共同による社会貢献教育プログラムをスタートさせる.修了者には資格として「環境園芸士」を授与することで検討を進めている.その目的は園芸技術を広め園芸文化を高めることにある.対象は社会人と学生を含めた市民の園芸愛好者・園芸入門者である.教育プログラムの内容は花卉,蔬菜,果樹・植木の各専門科目とし,個人の趣味園芸のレベル向上と「花と緑の街づくり」の指導者養成を目指し,2010年9月に花卉のプログラムから開始する予定である. 本稿の筆頭者は,「環境園芸士」の提案者として,100周年記念行事の一環として進められた「園芸資格制度検討委員会」(第1表)の発起人の一人となった.本稿は,「園芸資格制度検討委員会」設立の経緯と活動状況,及び「環境園芸士」資格制度に関する調査・研究の経過を著わすものである.In 2009, 100 years had passed since Faculty of Horticulture, Chiba University was established. To spread knowledgewhich has been achieved in these 100 years, university staffs and alumni will start a program, called 'EnvironmentalGardener' as a part of memorial events. The aim of this program is to spread technologies of horticultureand to enrich cultures of horticulture. A certifi cation is going to be given for people who fi nished this program.There are four courses for this program: fl owers, vegetables, fruits and garden plants. This is designed for studentsand members of society. The fl ower course will start September 2010 at fi rst. Each course has lectures on basicplant knowledge such as plant cultivation, plant physiology, ecology, soil, fertilizer, pest control and garden design,as well as practices at university farm.

著者

白銀 隼人 宍戸 雅宏

出版者

千葉大学大学院園芸学研究科

雑誌

食と緑の科学 (ISSN:18808824)

巻号頁・発行日

no.67, pp.69-73, 2013-03

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White root rot of Japanse pear caused by Rosellinia necatrix was investigated in two orchards of the Center forEnvironment, Health and Field Sciences, Chiba University. The bait twig method coupled with PCR primers specificto the fungus indicated at least 28.9% of Japanese pear trees were infected with the pathogen. Because the detectionefficiency of the method is often less than 80 % , the disease was likey more prevalent than the detectedsamples in the orchards. Furthermore, Japanese pear trees that R. necatrix was detected had significantly shorternew shoots than trees that the pathogen was undetected, showing negative impact of the disease infection on thegrowth of host plants. Genetic polymorhisms of R. necatrix isolated from the orchard and other areas of Japan, inaddition to kin speceis: R. aquila and R. compacta, based on six UP-PCR primers exhibited no identical polymorphicpatterns among these Rosellinia isolates. This result suggests that R. necatrix of the orchard is genetically differentfrom isolates living in other areas of Japan.

著者

岩崎 寛

出版者

千葉大学大学院園芸学研究科

雑誌

食と緑の科学 = HortResearch (ISSN:18808824)

巻号頁・発行日

vol.72, pp.12-13, 2018-03-31

著者

ペナバズワイリー ソフィア

出版者

千葉大学大学院園芸学研究科

雑誌

食と緑の科学 = HortResearch (ISSN:18808824)

巻号頁・発行日

vol.71, pp.6-7, 2017-03-31

著者

松浦 元樹 田川 彰男 小川 幸春 Akio Tagawa 小川 幸春 Yukiharu Ogawa

出版者

千葉大学大学院園芸学研究科

雑誌

食と緑の科学 (ISSN:18808824)

巻号頁・発行日

no.65, pp.55-59, 2011-03

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Young's modulus and Poisson's ratio, which characterized elastic properties of a material, were measured bymeans of compress utensil and digital images captured by digital camera, and the elastic values were evaluated. Atissue of boiled Japanese radish and carrot root, which is too fragile to measure their Poisson's ratio by traditionalmethods, was used as sample materials. Cylindrical samples were cut out of the tissue using a precise apparatusand their dimensions were set to 15mm height and 30mm diameter. The samples were then compressed. The stressof the samples against compression was measured using a creep meter. The compressed deformation of the sampleswas captured by a digital camera and accurately analyzed by high resolution digital images. The Poisson's ratio wascalculated from differences in the sample deformation in digital images. A Young's modulus was also calculatedfrom the compressed deformation and the stress. As a result, the Poisson's ratio of boiled Japanese radish wasfound to be constant or slightly decrease with boiling elapsed time. The Poisson's ratio of carrot also decreasedwith boiling, and its value was smaller than the Japanese radish's. On the other hand, the Young's modulus for eachsample decreased sharply when boiling started but after 4 minutes boiling it was stabilized at low values.