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Dissertations / Theses on the topic 'Guava Fruit'

Author: Grafiati

Published: 5 June 2025

Last updated: 2 August 2025

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1

Moe, Sandar Tun Pornrat Sinchapanit. "Stability of vitamin C content in guava juices during pasteurization and storage at different conditions /." Abstract, 2007. http://mulinet3.li.mahidol.ac.th/thesis/2550/cd406/4838011.pdf.

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2

Nunez, Rueda Flor de Maria. "Guava (Psidium guajava L.) fruit phytochemicals, antioxidant properties and overall quality as influenced by postharvest treatments." [Gainesville, Fla.] : University of Florida, 2005. http://purl.fcla.edu/fcla/etd/UFE0011873.

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3

Corsato, Clarice Diniz Alvarenga. "Moscas-das-Frutas (Diptera: Tephritidae) em pomares de goiaba no norte de Minas Gerais: biodiversidade, parasitóides e controle biológico." Universidade de São Paulo, 2004. http://www.teses.usp.br/teses/disponiveis/11/11146/tde-29092004-165942/.

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A incidência de moscas-das-frutas é um fator de preocupação todos os anos nos perímetros irrigados do norte de Minas Gerais, principalmente em pomares de goiaba, acarretando aumentos nos custos e perdas na produção. Para se estabelecer um programa de controle de moscas-das-frutas, torna-se necessário o prévio conhecimento dos aspectos ecológicos dos tefritídeos e seus parasitóides. Portanto, o presente trabalho teve por objetivo conhecer a biodiversidade de moscas-das-frutas e de seus parasitóides em dois pomares comerciais de goiaba da região, os índices de infestação das moscas-das-frutas e

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4

Filho, Miguel Francisco de Souza. "Infestação de moscas-das-frutas (Diptera: Tephritidae e Lonchaeidae) relacionada à fenologia da goiabeira (Psidium guajava L.), nespereira (Eriobotrya japonica Lindl.) e do pessegueiro (Prunus persica Batsch)." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/11/11146/tde-08052006-164406/.

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Os experimentos de campo foram realizados em 2002 e 2003 em três pomares no município de Monte Alegre do Sul, SP, representados por uma coleção de linhagens de goiabeiras (janeiro a abril), uma coleção de cultivares de nespereiras (agosto a setembro) e uma coleção de cultivares de pessegueiros (setembro a outubro). Nos ensaios de infestação, foram utilizadas três linhagens de goiaba (Guanabara, L7P28 e 252), duas cultivares de nêspera (Precoce Campinas e a Precoce 264-54) e três cultivares de pêssego (Aurora 2, Dourado 1 e Régis). Para a determinação do período de infestação, aplicou-se o proc

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5

Chiveu, Chemulanga Josiah [Verfasser], Elke [Akademischer Betreuer] Pawelzik, Elke [Gutachter] Pawelzik, Michaela [Gutachter] Dippold, and Klaus [Gutachter] Dittert. "Assessment of genetic and nutritional diversity, and salinity tolerance of Kenyan guava (Psidium guajava L.): an underutilized naturalized fruit species / Chemulanga Josiah Chiveu ; Gutachter: Elke Pawelzik, Michaela Dippold, Klaus Dittert ; Betreuer: Elke Pawelzik." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2018. http://d-nb.info/116423112X/34.

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6

SILVA, José Maria da. "Secagem combinada de pedaços cúbicos de goiaba em leito fixo de jorro." Universidade Federal de Campina Grande, 2011. http://dspace.sti.ufcg.edu.br:8080/jspui/handle/riufcg/1889.

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Submitted by Johnny Rodrigues (johnnyrodrigues@ufcg.edu.br) on 2018-10-03T17:58:58Z No. of bitstreams: 1 JOSÉ MARIA DA SILVA - TESE PPGEP 2011..pdf: 14954492 bytes, checksum: 65314f6691011ab496ce3aa565991c1a (MD5)<br>Made available in DSpace on 2018-10-03T17:58:58Z (GMT). No. of bitstreams: 1 JOSÉ MARIA DA SILVA - TESE PPGEP 2011..pdf: 14954492 bytes, checksum: 65314f6691011ab496ce3aa565991c1a (MD5) Previous issue date: 2011-08-26<br>O comportamento dinâmico do leito de jorro constituído de partículas deformáveis é de difícil predição devido às mudanças que acontecem durante a secagem desse

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7

Escanferla, Maria Eugenia. "Pré-Penetração de Guignardia psidii em goiaba: influência da temperatura, duração do molhamento, idade dos frutos e concentração de etileno e dióxido de carbono." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/11/11135/tde-20022008-152002/.

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A pinta preta provocada pelo fungo Guignardia psidii Ullasa e Rawal (Phyllosticta psidiicola (Petrak) van der Aa) vem gerando perdas pós-colheita na produção de goiaba para consumo in natura. Este trabalho buscou maiores informações sobre esta doença por meio do estudo do efeito da temperatura, da duração do período de molhamento, do efeito dos gases dióxido de carbono e etileno, e da idade dos frutos de goiabeira na pré-penetração de conídios de G. psidii. Os estudos in vitro foram avaliados por meio de microscópio de luz e os in vivo por meio de microscópio eletrônico de varredura, registran

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8

Beltrame, Ana Elisa de Godoy. "Fisiologia do amadurecimento de maracujá-amarelo e goiaba \'Pedro Sato\' ligados ou não às plantas." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/11/11136/tde-28032013-104638/.

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Os frutos são classificados em climatéricos e não climatéricos de acordo com o padrão da atividade respiratória e produção de etileno. No entanto, estudos apontam que alguns frutos não se enquadram nessa classificação e, a goiaba, tem sido considerada um deles. Uma vez que há divergências quanto à classificação de alguns frutos em climatéricos e não climatéricos, esse trabalho apresenta hipóteses de estudo para goiaba, pois dados sobre sua fisiologia pós-colheita ainda são contraditórios e para maracujá-amarelo, pois são poucos os dados sobre a sua fisiologia pós-colheita. Este trabalho teve c

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9

Lemos, Leandro José Uchôa. "Dinâmica populacional de espécies de Anastrepha Schiner, 1868 (Diptera: Tephritidae) em pomares de goiaba (Psidium guajava L.) em duas localidades do estado de São Paulo." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/11/11146/tde-23102012-160637/.

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Os levantamentos das espécies de Anastrepha foram realizados com armadilhas do tipo McPhail contendo torula (atraente alimentar) em: (1) Monte Alegre do Sul (janeiro de 2002 a dezembro de 2003) e (2) Monte Alto (janeiro a dezembro de 2004). Foram capturados 30.516 espécimes (15.770 fêmeas e 14.746 machos) em Monte Alegre do Sul, 22.825 exemplares (11.739 machos e 11.086 fêmeas) em Monte Alto. As identificações foram baseadas nas fêmeas. Foram identificadas 13 espécies em Monte Alegre do Sul, das quais, A. fraterculus e A. bistrigata foram predominantes. Em 2003, houve maior diversidade de espé

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10

Junior, Newton Cavalcanti de Noronha. "Efeito dos coespecíficos e voláteis das plantas Murraya paniculata (L.) Jack, Psidium guajava L. e Citrus sinensis (L.) Osbeck sobre o comportamento de Diaphorina citri Kuwayama (Hemiptera:Psyllidae)." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/11/11146/tde-20042010-102148/.

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Os agroecossistemas consistem em complexas relações tróficas entre plantas, herbívoros, e seus inimigos naturais. Sabe-se que a maioria das plantas é capaz de produzir compostos voláteis, utilizados como sinais químicos por diferentes grupos de insetos. Esses voláteis podem ser produzidos de forma constitutiva em plantas sadias, ou seja, sem indução. Por outro lado, a produção de voláteis induzidos se dá a partir do contato de secreções liberadas pelo fitófago com injurias ocasionadas pela alimentação ou oviposição no tecido vegetal. Para os fitófagos esses voláteis podem sinalizar a presença

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11

Lin, Yi-Tzu, and 林怡慈. "Antihyperglycemic effects of the aqueous extracts from guava fruit." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/71340530855607872693.

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碩士<br>國立屏東科技大學<br>熱帶農業暨國際合作系所<br>98<br>The present study investigated the effect of guava fruit aqueous extracts on blood glucose regulation and carbohydrate metabolism in diabetic rats. The experiment comes to two parts which were antioxidant capacity of guava fruit aqueous extracts and animal model experiment. In the first part, guava fruits were extracted with hot water 80℃for 30 minutes by the way to boil tea; the extract powders were obtained to be our experimental samples by centrifugating and freeze-drying, and then analyzed its general composition and antioxidative activity. In the sec

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12

Wei, Tzu-Hsun, and 魏梓訓. "Improvement of Storage Quality of Guava (Psidium guajava L.) Fruit." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/48247864763665933721.

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碩士<br>國立中興大學<br>園藝學系所<br>101<br>The purpose of this study is to investigate the potential improvement of postharvest fruit quality by using different preharvest bagging materials and postharvest treatments such as applied hot air, chitosan coating, vacuum and packaging method. Guava bagged with white paper showed that the maturity time was 2 weeks later than those bagged with polyethylene plastic containing inner expanded polystyrene net sleeve. Both before and after storage, the fruit quality including firmness, total soluble solid, ascorbic acid, and peel color was better when bagged with wh

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13

Yi, Yang Jau, and 楊昭儀. "Effect of fruit maturity on the quality of guava puree." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/77631400393530572629.

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碩士<br>輔仁大學<br>食品營養學系<br>82<br>Physical-chemical changes in 2 cultivars guava (cv.Chung-sun & cv.Bai-ba) during periods of development, maturation and ripening were investigated. Effect of heat processing in guava puree also studied. During development and maturation chlorophyll content of peel decreased, sugars content ( fructose, glucose, sucrose), total soluble solids, ascorbic acid, Brix-acid ratio increased and titratable acidity, nonvolatile organic acids, tannin, formol nitrogen decre

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14

Yang, Zong-Xian, and 楊宗獻. "Studies on the Development of ''Shihchi'' Guava (Psidium guajava L.) Fruit." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/16701546744737667201.

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15

Yang, Zong Xian, and 楊宗獻. "Studies on the development of 'Shihchi' guava (Psidium guajava L.) fruit." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/69022590041577448511.

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16

陳立平. "Analysis of Internal Quality of Guava Fruit Using Near Infrared Spectroscopy." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/77614819132033085966.

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碩士<br>國立屏東科技大學<br>機械工程系<br>91<br>This research study used near infrared spectrum to detect the sugar content of guava with nondestructive detection method, given the wavelength range of 400nm~2498nm. The sugar content spectrometer was used to analyze the soluble solid substance in guava produced in Neimen Shiang, Pingtung, and establish the sugar content calibration equation. The near infrared spectrum was employed to analyze the guava sugar content with quick and non-destructive detection for online detection rating. The results showed that the near infrared spectrum of guava sugar

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17

Hong, Zi Xin, and 洪紫馨. "Physiology and changes of cell wall hydrolases of guava fruit during ripening." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/15277905979794795247.

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碩士<br>國立臺灣大學<br>園藝學研究所<br>84<br>This research was to study the physiological changes of guava (Psidium guajava L. cv. ''Bai Ba'') during storage at different temperatures, and to study the extraction and activity changes of two cell wall hydrolases during ripening. ''Bai Ba'' guava displayed the characteristics of a climacteric fruit. During storage at 20C,ethylene production and respiration reached peak on the 6th day and 7th day respe

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Cheng, An-Heng, and 鄭安亨. "Relationships Between Leaf, Fruit Mineral Nutrients, Photosynthate and Fruit Quality of Guava (Psidium guajava L. cv. ‘Jen-Ju Bar’)." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/14280806526694152102.

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碩士<br>國立中興大學<br>園藝學系<br>93<br>Mineral concentrations of fruits and leaves were investigated during the period of growth and development of guava “Jen-Ju Bar”. Results showed that N, P, Ca, Mg, Fe, Mn, Cu and Zn concentrations decreased with the growth of fruits. Leaf N and K concentrations also decreased, but P, Ca, Mg, Fe, Mn, Zn on the other hand increased with the increasing size of the fruits. From bloom to maturity, winter crops took about 142 days while summer crops needed relatively short period of about 98 days. Growth curve displayed a double sigmiodal pattern. “Jen-Ju Bar” tends to t

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Lin, Kao-Wei, and 林高偉. "Studies on the Infestation of ‘Jen-Ju Bar’ Guava (Psidium guajava L.) Fruits by Oriental Fruit Fly (Bactrocera dorsalis)." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/muyxer.

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博士<br>國立中興大學<br>園藝學系所<br>106<br>Abstract In guava (Psidium guajava L. ‘Jen-Ju Bar’) cultivation, the fruit damaged by the oriental fruit fly (Bactrocera dorsalis Hendel) which is one of the major pests in fruit during development. In the cultivation to prevent the fruit flies damage, used bagging for fruit was the most widely method. In the field observation, was made to record the time of fruit infected by fruit flies at different growth of stages. The results showed that the summer fruits were to be infected with fruit flies during the 11th week after bloom. At the 13th week after bloom, fr

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Liu, Yi-Chung, and 劉益忠. "Studies on the Harvest Maturity and Storability of ‘Yilan red’ Guava(Psidium guajava L.) Fruit." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/82756858491333436281.

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碩士<br>國立宜蘭大學<br>園藝學系碩士班<br>102<br>This thesis is divided into four aspects for experimentation: fruit growth survey and harvest maturity of ‘Yilan red’ guava (Psidium guajava L.), the impact of harvest maturity on the fruit quality and storability of ‘Yilan red’ guava, the impact of harvest maturity and storage temperature on the peel color and fruit respiration rate and ethylene production of ‘Yilan red’ guava, and the impact of postharvest 1-Methylcyclopropene treatment on the ripening and quality changes of ‘Yilan red’ guava. The fruit growth survey and harvest maturity research covers inve

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Tsai, Tu-Hsin, and 蔡篤鑫. "Identification and physiological characterization and control of Botryodiplodia fruit rot of guava（Psidium guajava L.）." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/27157601579906738253.

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碩士<br>國立高雄師範大學<br>生物科學研究所<br>91<br>Abstract The Botryodiplodia fruit rot of guava fruit is one of the most serious diseases in summer season in Taiwan. The symptoms begin with a small brown pit, and then enlarge to a circle-like spot with pycnidia within the fruit wounds, and circular water-soaked spots on fruit. According to the morphological characteristics of the pathogen, the causal agent was identified as Botryodiplodia theobromae Pat.. The colonies of B. theobromae cultured on PDA plates were white and gradually turned to gray, fluffily with abundant aerial mycelium. Pycnidios

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22

Chen, Tseng-Wei, and 陳增蔚. "Studies on phylogenetic and fruit ripening-related genes of guava and sugar apple in Taiwan." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/40114586638298972860.

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博士<br>臺灣大學<br>園藝學研究所<br>96<br>Guava and sugar apple are important fruit trees in Taiwan. Red-flesh guava is mostly distributed in indigenous tribes in Taiwan and has valuable application in traditional medicine. Due to the various varieties of red-flesh guava and adulteration problems in fruit materials, a systematic way for classification using molecular marker is necessary to guarantee materials’ reliability and safety. Same manner in sugar apple, there are numerous cultivars and species due to breeding for fruit improvement, thus, reliable molecular detection method is urged for rapidly scr

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23

Yeh, Li-Chan, and 葉孋嬋. "Cloning and Characterization of Ethylene Receptor cDNA and Analysis of Ethylene Sensitivity in Guava Fruit." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/nfrsxv.

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碩士<br>國立臺灣大學<br>園藝暨景觀學系<br>101<br>‘Jen-Ju Bar’ (‘JJB’) guava, a non-climecteric cultivar which defects in system II ethylene production during fruit ripening stage, is an appropriate material for exploring ripening responses to ethylene sensitivity of guava fruit, because the impacts of endogenous ethylene can be excluded. The pulp softening and peel coloration of ‘JJB’ fruit showed a high sensitivity (11.94 and 14.26 μL．L-1 propylene, respectively.), responsivity (2.25 N/μL．L-1 propylene and 1.67°/μL．L-1 propylene) and dependency (91.9% and 95.9%) for propylene, an ethylene analogue. As a co

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Lin, Tzu-Wen, and 林子文. "Effects of Drought, Shading, Leaf to Fruit Ratio, and Fruit Set Position on Plant Growth, Physiology and Fruit Production of ‘Jen-Ju-Ba’ Guava (Psidium guajava L.)." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/73522800384899695403.

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碩士<br>國立中興大學<br>園藝學系所<br>104<br>Guava (Psidium guajava L.) is one of the most economically important tropical fruits in Taiwan. Although ‘Jen-Ju-Ba’ is the major local guava cultivar, information regarding its reproduction and physiology is limited. Additionally, poor fruit quality in the summer poses a great challenge for its cultivation. To understand and build fundamental physiological data, we first carried out a basic study of photosynthesis diurnal changes of potted ‘Jen-Ju-Ba’ and a two water withholding/recovery cycle tests to observe shoot growth and physiological responses of ‘Jen-Ju

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Liu, Chia-Ming, and 劉家銘. "The attraction assessment of the volatiles from banana and guava fruit against females of the oriental fruit fly, Bactrocera dorsalis (Hendel) (Diptera: Tephritidae)." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/54138476973985995572.

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碩士<br>國立中興大學<br>昆蟲學系所<br>102<br>This study preliminarily evaluated the attractiveness of fresh fruits against females of the oriental fruit fly, Bactrocera dorsalis. The results showed that native mango (Mangifera indica Linn. cv. Native) and banana (Musa sapientum L. cv. Pei - Chiao) exhibited 2.40 and 2.10 times higher attractiveness than the control, red guava (Psidium guajava cv. Thai Maroon). When analyzed and evaluated the attractiveness of the headspace volatiles of banana and red guava using gas-mass chromatography (GC/MS). The results showed that butyl isovalerate, sec-butyl butyrate,

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Shen, Yu-Yen, and 沈妤晏. "Studies on the Harvest Maturity and Storability of ‘Jong-Shan Yueh Bar’ Guava (Psidium guajava L.) Fruit." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/61236424509178202252.

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碩士<br>國立宜蘭大學<br>園藝學系碩士班<br>102<br>In this thesis, ‘Jong-Shan Yueh Bar’ (Psidium guajava L.) from Ilan was adopted for the following study, including fruit growth and development and harvest maturity, the impact of harvest maturities and storage temperatures on the fruit’s respiration rate, ethylene production, fruit quality and storability, and the influences on fruit decay rate and peel color of guava by 1-Methylcyclopropene (1-MCP) postharvest treatment. The study is expected to contribute to the study and promotion of the guava industry. The fruit materials used in this experiment were grow

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Lin, Hui Mei, and 林惠美. "The effect and mechanism of water extract of dehydrated guava fruit slices on glucose tolerance improvement in rats." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/02100104925182268128.

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Chen, Tzu-Hsuan, and 陳姿璇. "Seedlessness Resulted from Abnormal Ovules and Fruit Set Improved by GA3 in ‘Shuei Jing’ Guava (Psidium guajava L.)." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/09288333007094872741.

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碩士<br>國立臺灣大學<br>園藝學研究所<br>97<br>‘Shuei Jing’ guava (Psidium guajava L.) is an almost seedless cultivar with great potential in Taiwan, but its fruit set and yields are usually low. I studied the cause of seedlessness and the way to increase fruit set in ‘Shuei Jing’ . Different types of pollination and pollen donors were tried for investigating seed number in ‘Shuei Jing’ and ‘Jen Ju’ guava. When ‘Shuei Jing’ was the pollen acceptor, the seed number was significantly less than that of ‘Jen Ju’. However, ‘Shuei Jing’ served as pollen donor resulted in more than 300 seeds when ‘Jen Ju’ wa

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Sun, Yu-Chun, and 孫郁淳. "Effects of guava fruit extracts on glucose tolerance improvement and carbohydrate metabolism in STZ-NA induced diabetic rats." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/05725137060826992272.

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Kao, Chi-Fen, and 高啓雰. "Effect of Low Temperature and Package on ‘Sweet Green’ and ‘Rainbow’ Guava (Psidium guajava L.) Fruit Quality after Storage." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/b63rp3.

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碩士<br>國立中興大學<br>園藝學系所<br>107<br>To solve the problem of low storage quarity of guava in summer season.The objective of the present study is to investigate the effect of low temperature and different packaging on the storage quality of ''Sweet Green'' and ''Rainbow'' guava. The results show that the storage capability of ‘Sweet Green’ was comparable to that of ‘Jen Ju’. Upon low temperature storage, while the fruit firmness and total titratable acid content decreased slowly in both varieties, the total soluble solid and ascorbic acid content of ‘Sweet Green’ were higher than ‘Jen Ju’. The chlor

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Huang, Shou-Horng, and 黃守宏. "Factors affecting the Methyl Eugenol trapping of the oriental fruit fly (Bactrocera dorsalis (Hendel)) in a guava orchard at Touliu." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/72686539597400673534.

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碩士<br>國立臺灣大學<br>植物病蟲害學系<br>85<br>Abstract The time required for an adult oriental fruit fly to reach sexual maturation was observed in growth chambers at various rearing conditions, namely 16, 20, 25, and 35℃ with a fixed photoperiod of 12L:12D. Both female and male fly took about 6 to 8 days after emergence to reach sex maturation between 25 and. At 16℃, female matured nine days faster (18 days vs. 27 days) than male. However, at 20℃, male matured one day faster (11 days) than female (12

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Chiveu, Chemulanga Josiah. "Assessment of genetic and nutritional diversity, and salinity tolerance of Kenyan guava (Psidium guajava L.): an underutilized naturalized fruit species." Doctoral thesis, 2018. http://hdl.handle.net/11858/00-1735-0000-002E-E46B-4.

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Yang, Jing-Cheng, and 楊景琤. "Using SSR markers in genetic linkage map construction and QTL mapping of fruit-related traits in guava (Psidium guajava L.)." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/y6dr8e.

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碩士<br>國立屏東科技大學<br>生物科技系所<br>105<br>Psidium guajava L. belongs to the genus Psidium of Myrtaceae. Guava fruits have diversified traits, such as fruit shape, flesh color, seed number, fruit ripening, total soluble solids content and antioxidant capacity. In this study, 186 F2 progeny derived from the cross between a red-flesh, climacteric line, 66-90, and a white-flesh, non-climacteric line, M3, was employed for genetic linkage map construction and QTL analysis of fruit-related traits using flesh color and fruit ripening trait-specific markers and SSR primer pairs. Although the segregation rati

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Tsai, Ping-Jui, and 蔡秉睿. "Effects of Temperature and Precooling on Fruit Quality of ‘Yilan Red’ and ‘Jong-Shan Yueh Bar’ Guava (Psidium guajava L.)." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/j4qw5a.

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碩士<br>國立宜蘭大學<br>園藝學系碩士班<br>103<br>The ‘Yilan Red’ guava fruit was placed under 35, 25, 15, and 10℃ for 11 days. The decay rate gradually increases with increases in storage temperature and time, reaching 100% in day 3, 4, 9, and 11. The weight loss rate of the fruit rapidly increase with an increase in temperature, reaching 7% on day 3 at 35℃. The four storage temperatures has no obvious effect on the L* value of the peel color, but with an increase in storage time, the value slightly decreases (slightly turns dull); the a*value of the peel color at 35 and 25℃ turns from a negative value to a

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Tsai, I.-Chun, and 蔡宜君. "Effect of Pruning, Bagging, Net-house cultivation, and Low Temperature Storage Heat Preatment on the Fruit Quality of Guava (Psidium guajava L.)." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/85329414388411595337.

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碩士<br>國立中興大學<br>園藝學系所<br>99<br>The objective of these experiments was to find the best conditions by which to increase the quality and storage life of guava fruit harvested in the summer. “Jen-Ju” guava trees were kept under two field conditions: open field and net housing. Choline chloride and bagging experiments were conducted on the open field trees. Choline chloride was applied to “Jen-Ju” cultivars and results were examined 76 days later. Choline chloride was able to inhibit the growth of the shoots and the firmness of the fruit from the treated trees was higher than that of the untreate

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Chiu, Chun-Yuan, and 邱俊源. "Effects of Pre-harvest Bagging, Calcium Application, Postharvest Precooling, and Specific Gravity Grading on Fruit Quality of ‘Jen-Ju’ Guava (Psidium guajava L.)." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/61238444361991298512.

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碩士<br>國立中興大學<br>園藝學系所<br>103<br>The amount of guava export t in Taiwan has increased year after year, but guava fruits are not resistant to cold storage and have poor quality during summer.The objectives of this research is to investigate the effect of preharvest bagging materials, calcium foliar application, postharvest precooling and specific gravity grading on fruit quality and cold storage capacity of ‘Jen Ju’ guava (Psidium guajava L.), and to establish an effective postharvest processing method for guava export. ‘Jen-Ju’ guava fruits bagged with white paper bag lined with expanded polyst

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Cheng, Huai-Jung, and 鄭淮嶸. "Preliminary Studies on Development of Inoculation and Detection Method and Control Strategies for Citrus Tatter Leaf Disease, Guava Fruit Spot Disease and Grapevine Leafroll Disease." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/g55t24.

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碩士<br>國立臺灣大學<br>植物醫學碩士學位學程<br>105<br>Fruit trees are the most important crops for the agriculture production in Taiwan. Many fruit varieties are cultivated in Taiwan geographically located in the tropical and subtropical areas with plenty of rain, high temperature and high moisture. The major problems for the fruit production in Taiwan are diseases and insect pests. In this thesis, we conducted three case studies of important fruit tree diseases based on the targets of plant medicine. The first case is citrus tatter leaf disease, which has occurred for a long time in Taiwan and considered to b

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Wang, Ya-Chin, and 王亞勤. "Effects of Bagging Materials and Net-house Cultivation on the Fruit Quality and Storage Life of Guava (Psidium guajava L. cv. Jen-Ju Bar) and Indicator Evaluation for Temperature Stress." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/99477483755380611697.

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碩士<br>國立中興大學<br>園藝學系所<br>100<br>chapter 1 Taiwan’s high summer temperatures lead to the increased fruit growth rate, decreased fruit sugar content and poor flavor of ‘Jen-Ju’ guava (Psidium guajava L.). ‘Jen-Ju’ fruit is the major cultivar of the guava production in Taiwan, but it suffers from softened texture and short storage life during the summer season. The objective of these experiments was to investigate the effects of bagging materials and net-house cultivation on the fruit growth, quality and storage life of guava (Psidium guajava L. cv. Jen-Ju Bar). ‘Jen-Ju’ guava trees were culture

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Lin, Huey-Ling, and 林慧玲. "Studies on the Ripening Physiology of Guava (Psidium guajava L.) Fruits." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/45092142174361973931.

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博士<br>國立臺灣大學<br>園藝學系研究所<br>86<br>The growth curves of guava (Psidium guajava L.) fruit was found to be double s igmoid. Depending on the individual cultivar, both climacteric and non-climac teric types of respiratory patterns were found in guava fruits. Culitivars of ''Li-Tzy Bar'', ''Dar Dih'', ''Jong-Shan Yuen Bar'', and ''Pei Bar'' were climacteric , and ''Jen-Ju Bar'', ''Shyh-Jii Bar'', and ''Tai-Kuo Bar'' were found to be non-cli macteric.An abrupt rise in respiratory rate and subsequent ethylene production

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楊雅薰. "Investigation of mineral nutrients and carbohydrate concentrations of guava leaves and fruits." Thesis, 1991. http://ndltd.ncl.edu.tw/handle/80781767724349950029.

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Chen, Hsin-Chun, and 陳信君. "Analyses of Flavor Volatile Compounds from Guava (Psidium guajava L.) Fruits and Leaves." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/33411807354066610364.

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博士<br>國立臺灣大學<br>園藝學研究所<br>94<br>Abstract (Part1) Guava, Psidium guajava L. (Myrtaceae), which has an unique quince and banana-like odor, is a native to Central America. It is frequently cultivated as a food for its pleasant fruit that also was used in juice processing. Today, the trees can be found cultivated or growing wild in nearly Mesoamerican geographical area, all the countries of the Tropical World Belt, from the West Coast of Africa to the Pacific Region, including India, China and Taiwan. SPME or steam distillation-solvent extraction method was used for the isolation of volatile comp

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Wang, Sheng-Jang, and 王聖讓. "Studies on Storage Effect of Elastic Properties of Guava (Psidium guajava L.) Fruits." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/58220696472473418017.

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碩士<br>國立臺灣大學<br>生物產業機電工程學研究所<br>97<br>Since harvested fruit easily softens and loses its market value at room temperature, a low-temperature environment is required to preserve the fruit’s firmness if a longer shelf life is desired. Thus using elastic property to establish a nondestructive quality evaluation index is one of the important research issues of biological engineering. This study aims at investigating the variations of the elastic properties of stored “Jen-Ju Bar” a most popular variety of guava in Taiwan. The ASABE standard parallel plate compression test and the impulse response t

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Pan, Mei-Wen, and 潘美汶. "Studies on Sugar Metabolism in Climacteric and Non-climacteric Guava Fruits during Development." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/63400511801923865288.

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碩士<br>國立中興大學<br>園藝學系所<br>98<br>The objective of this study was to compare differences in fruit characteristics and sugar metabolism during development between climacteric and non-climacteric guavas. Results indicated that all the guava cultivars analyzed had higher sucrose and fructose contents than glucose. Determination of activities of sugar metabolism related enzymes during fruit growth and development showed that with the raising of sucrose content, sucrose synthase and sucrose phosphate synthase activities also increased. The cumulative amount of fructose and glucose increased more rapid

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SUN, YU-CHIANG, and 孫友強. "The Investigation of Fruit Qualities of Carambolas, Guavas and Bananas in Taiwan." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/09483478599573590259.

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碩士<br>東海大學<br>食品科學系<br>86<br>In this study, the fruit qualities of the different cultivars of carambolas, guavas and bananas were studied. In respect of carambolas, the heaviest clone was 8-201 with the average fruit weight of 263.3 g and the lightest one was the Suan Wei for 142.5 g. Line C-IND-03 showed highest L values, while line Ching Chyan showed lowest values. The a and a/b values were highest in line Jakarta and lowest in line Mih Ssu. For total soluble solids, there was 9.6 。Brix of high content in Jakarta and 6.6 。Brix of low content in line Suan Wei. For titratable acidity, the

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Yeh, Szu-Wei, and 葉思瑋. "Evaluation of chilling injury index and handling techniques of guava fruits (Psidium guajava L.)." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/21400809620410673915.

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碩士<br>國立臺灣大學<br>園藝學研究所<br>96<br>Guava（Psidium guajava L.）, an important tropical fruit crop in Taiwan, is a highly perishable horticultural produce due to its rapid water loss and very susceptible to pathogen infection after harvest. Although cold storage is the most effective tool for extending the shelf life of fresh commodity, low temperature may cause chilling injury (CI) and, therefore, quality loss when guava fruit, a chilling-sensitive produce, is held below critical temperature. Therefore, how to assess CI occurrence and how to enhance chilling tolerance are pivot issues for postharves

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Chang, Hai-feng, and 張海豐. "Effect of the Maturity on the Quality of Guava Fruits and Puree for Processing." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/00337790731555430842.

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碩士<br>東海大學<br>食品科學系<br>84<br>In this study, the effects of maturity on the fruit quality of different cultivars of guavas for processing were investigated. The hunter L, b and (a2+b2)1/2 values of guava fruits increased during development and maturation. The a/b value of guava fruits were negative number, and it was near to zero during development and maturation. The hunter L and a value increased, reduction in b and (a2+b2)1/2 values of white-fleshed guava puree during development and matu

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YAN, XIU-FEN, and 顏秀芬. "Respiratory pattern and the effect of control atmosphere storage on shelf-life of guava fruits." Thesis, 1986. http://ndltd.ncl.edu.tw/handle/36854836596499242652.

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Tsai, Shang-Tsung, and 蔡尚璁. "Effect of genotype and season on antioxidant capacity of fruits in guava (Psidium guajava L.)." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/55200754914635336564.

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Yao, Deng-Kai, and 姚鐙凱. "Cloning and expression analysis of ACC synthase and phytoene synthase in fruits of guava (Psidium guajava L.)." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/03536938058070335677.

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碩士<br>國立屏東科技大學<br>農園生產系所<br>97<br>Fruits of guava (Psidium guajava L.) have been categorized into climacteric and non-climacteric based on respiratory rate and ethylene production during ripening. To explore the molecular differences of gene expression between climacteric and non-climacteric fruits, both gene sequences of an ACC synthase (ACS) from the two types of fruits were cloned and compared. The full length ORF of the cloned ACS cDNA was 1,476bp encoding a polypeptide of 491 amino acids. The C-terminal amino acid sequence of PgACS1 contains an aminotransferase region, a calcium-depend

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Wang, Ming-Hui, and 王茗慧. "Seasonal Fluctuation in Mineral Composition, Ripening and Storage Physiology of ‘King’ Guava (Psidium guajava L. cv ‘King’) Fruits." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/38278313119024891210.

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碩士<br>國立中興大學<br>園藝學系所<br>94<br>Leaf analysis was used to determine the seasonal changes of mineral elements of‘King’guava. Results showed that the microelement changed very little except for iron, which increased rapidly after September. The macronutrient concentrations remained rather stable during the period of July to September. Likewise the trend was the same for the months of January to March. By contrast, the calcium concentration dropped rapidly from April to August. It is concluded that July to September are the proper time to collect samples for leaf analysis according to the stable c

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