Tropical agriculture and development最新文献_第3页

Effects of different extraction methods on aromatic composition of essential oils of Citrus keraji hort. ex Tanaka 'Kabuchii'. 不同提取方法对香柑精油芳香成分的影响。原Tanaka ' kabuchi '。

Tropical agriculture and development Pub Date : 2010-03-01 DOI: 10.11248/JSTA.54.25

Sayuri Inafuku-Teramoto, Y. Kawamitsu

引用次数: 3

Growth Characteristics and Starch Productivity of Three Varieties of Sago Palm (Metroxylon sagu Rottb.) in Southeast Sulawesi, Indonesia 印度尼西亚苏拉威西岛东南部3个西米棕榈品种的生长特性和淀粉产量

Tropical agriculture and development Pub Date : 2010-03-01 DOI: 10.11248/JSTA.54.1

Yoshinori Yamamoto, F. S. Rembon, K. Omori, Tetsushi Yoshida, Y. Nitta, Y. B. Pasolon, A. Miyazaki

引用次数: 15

Determinants of NERICA adoption in Uganda based on duration analysis. 基于持续时间分析的乌干达采用NERICA的决定因素。

Tropical agriculture and development Pub Date : 2010-03-01 DOI: 10.11248/JSTA.54.17

H. Fujiie, A. Maruyama, M. Fujiie, M. Takagaki, M. Kikuchi

引用次数: 13

Hydraulic Lift in Mango Trees (Mangifera indica L.) and Early Growth of Intercropped Groundnut (Arachis hypogaea L.) 芒果树液压举升与间作花生早期生长

Tropical agriculture and development Pub Date : 2009-09-01 DOI: 10.11248/JSTA.53.90

Ippei Harigane, T. Sakuratani, H. Higuchi, E. Nawata, S. Asano, Sōta Yamamoto, I. Maskow

引用次数: 0

Significance of informal trade in non-timber forest products for the Koya people, an ethnic minority in Andhra Pradesh, India. 非木材林产品非正式贸易对印度安得拉邦少数民族科亚人的意义。

Tropical agriculture and development Pub Date : 2009-09-01 DOI: 10.11248/JSTA.53.74

H. Tsunashima

引用次数: 1

Photosynthetic Features of Korean Alkaligrass (Puccinellia chinampoensis Ohwi) in Alkali Grassland in Jilin, China 吉林碱草地高丽碱草的光合特性

Tropical agriculture and development Pub Date : 2009-09-01 DOI: 10.11248/JSTA.53.95

K. Shimizu, Ke-zhang Xu, Zhiyuan Wu, Da-yong Li

引用次数: 0

Comparison of photosynthetic properties of field-grown pitaya between in summer and winter conditions. 田间火龙果夏季和冬季光合特性的比较。

Tropical agriculture and development Pub Date : 2009-09-01 DOI: 10.11248/JSTA.53.67

Y. Yonemoto, M. Ide, Keiichi Nomura

{"title":"Comparison of photosynthetic properties of field-grown pitaya between in summer and winter conditions.","authors":"Y. Yonemoto, M. Ide, Keiichi Nomura","doi":"10.11248/JSTA.53.67","DOIUrl":"https://doi.org/10.11248/JSTA.53.67","url":null,"abstract":"Diurnal changes in the contents of organic acids, carbohydrates, and activities of two enzymes, phosphoenolpyruvate carboxylase (PEPC) and malate dehydrogenase (oxaloacetate-decarboxylating, NADP+) (ME), were compared between summer and winter conditions in a crassulacean acid metabolism (CAM) plant, pitaya. Preliminary experiments showed that pitaya’s PEPC required Mn2+ but not Mg2+, and exhibited maximum activity at pH 7.0, in contrast to the PEPCs of some other plants. Analyses of sap revealed that sucrose was the loading sugar in pitaya. In summer, the diurnal changes in the contents of organic acids and starch in pitaya were typical of starch-using CAM plants. In addition, no phosphoenolpyruvate carboxykinase (PEPCK) activity was detected, and high levels of starch, but not of hexose, accumulated. These results indicate that pitaya belongs to the MEstarch type among the four kinds of CAM plants. In winter, the levels of these substances (including sucrose) decreased, and there were no clear CAM-type diurnal changes. In particular, we did not detect malate accumulation during the night, degradation of malate during the day, or starch accumulation during the day. This may have resulted from decreased enzyme activities and lack of C3 photosynthesis during the day. Thus, since pitaya displays a reduced capacity for CO2 fixation in winter, it cannot store nutrients during this period.","PeriodicalId":118800,"journal":{"name":"Tropical agriculture and development","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124838424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Characteristics of Sago Palm (Metroxylon sagu Rottb.) Suckers from Various Mother Palms at Different Growth Stages in Tebing Tinggi Island, Riau, Indonesia 西米棕榈的特性印度尼西亚廖内省特宾丁吉岛不同生长阶段的棕榈树吸盘

Tropical agriculture and development Pub Date : 2009-03-01 DOI: 10.11248/JSTA.53.1

A. Irawan, Yoshinori Yamamoto, A. Miyazaki, Tetsushi Yoshida, J. Shoon

{"title":"Characteristics of Sago Palm (Metroxylon sagu Rottb.) Suckers from Various Mother Palms at Different Growth Stages in Tebing Tinggi Island, Riau, Indonesia","authors":"A. Irawan, Yoshinori Yamamoto, A. Miyazaki, Tetsushi Yoshida, J. Shoon","doi":"10.11248/JSTA.53.1","DOIUrl":"https://doi.org/10.11248/JSTA.53.1","url":null,"abstract":"The vegetative growth appearance, pith nutrient contents including starch and total sugar contents as well as the subsequent establishment of suckers from various mother palms at different growth stages were investigated. We observed that suckers collected from mother palms at the near flowering and young trunk growth stages in a garden established in the 1970s did not show any significant difference in their vegetative growth characteristics and pith nutrient contents. Nitrogen (2.1-24.4 mg g-1) and potassium (3.6-17.6 mg g-1) contents in the pith of suckers collected at both growth stages of the mother palm were higher than the calcium (0.4-2.5 mg g-1), phosphorus (0.5-2.3 mg g-1) and magnesium (0.2-1.5 mg g-1) contents. Starch and total sugar contents ranged from 26.6 to 64.8 % and 4.4 to 12.9 % in the palms at the near flowering and young trunk growth stages, respectively. No significant differences between them were also observed in the survival rate and newly emerged vegetative organs after establishment for 2.5 months in the nursery, except for the number of newly emerged roots. Suckers from mother palms at the young trunk growth stage were able to show a high survival rate of 73.3 %, although this value was slightly lower than that of the suckers from mother palms approaching the flowering stage (83.3 %). Based on these results, it was concluded that suckers collected from young mother palms in a mature garden where harvest was frequently performed since new planting, could be used as planting materials in addition to those that emerged from mother palms at the near flowering stage.","PeriodicalId":118800,"journal":{"name":"Tropical agriculture and development","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126842496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Pollen sources effects on seed formation and fruit characteristics in Thai durians. 花粉源对泰国榴莲种子形成和果实特性的影响。

Tropical agriculture and development Pub Date : 2009-03-01 DOI: 10.11248/JSTA.53.28

C. Honsho, S. Somsri, S. Salakpetch, T. Tetsumura, Y. Yonemoto, K. Yonemori

引用次数: 3

Effects of nitrogen supply restriction on photosynthetic characters and dry matter production in Vietlai 20, a Vietnamese hybrid rice variety, during grain filling stage 氮素供应限制对越南杂交水稻越来20灌浆期光合特性和干物质生产的影响

Tropical agriculture and development Pub Date : 2008-12-01 DOI: 10.11248/JSTA.52.111

Tang Thi Hanh, T. Araki, P. Cuong, T. Mochizuki, A. Yoshimura, F. Kubota

引用次数: 2