Tropical agriculture and development最新文献_第9页

Growth Performance of the Transplanted Sago Palm ( Metroxylon sagu Rottb.) Suckers with Different Earliness of Trunk Formation 移植西米棕榈生长性能的研究不同树干形成早期的吸盘

Tropical agriculture and development Pub Date : 1900-01-01 DOI: 10.11248/JSTA.56.81

A. Irawan, Yoshinori Yamamoto, A. Miyazaki, Tetsushi Yoshida, F. Jong

引用次数: 2

Characterization and Expression Analysis of a Putative α-L-Arabinofuranosidase/β-D-xylosidase Gene Derived from Avocado 牛油果α- l -阿拉伯糖醛酸苷酶/β- d -木糖苷酶基因的鉴定与表达分析

Tropical agriculture and development Pub Date : 1900-01-01 DOI: 10.11248/JSTA.59.7

A. Tateishi, Y. Kamiyoshihara, F. Miyohashi, H. Shiba, Yoshiyuki Imura, Keiichi Watanabe, K. Nomura, H. Inoue

引用次数: 2

Rice Yield Increase by the System of Rice Intensification is Dependent on Supplementary Water Availability in Rainfed Lowland Fields of Southern Cambodia 通过水稻集约化系统提高水稻产量依赖于柬埔寨南部雨养低地的补充水分供应

Tropical agriculture and development Pub Date : 1900-01-01 DOI: 10.11248/JSTA.61.48

Y. Lee, K. Kobayashi

{"title":"Rice Yield Increase by the System of Rice Intensification is Dependent on Supplementary Water Availability in Rainfed Lowland Fields of Southern Cambodia","authors":"Y. Lee, K. Kobayashi","doi":"10.11248/JSTA.61.48","DOIUrl":"https://doi.org/10.11248/JSTA.61.48","url":null,"abstract":"Increasing rice yield in rainfed fields is one of the major agricultural challenges in Cambodia. As an answer to this challenge, we focused on the System of Rice Intensification (SRI), which has been reported to increase rice yield while reducing water use, and has actually been adopted by many farmers. To elucidate how SRI can increase rice yield under water constraint in rainfed fields, we conducted an interview study with 106 farming households in Popel commune, Tram Kak District, Takeo Province of Cambodia in 2015, and asked them about the wet season rice in 2014. The farmers cultivated rice in total of 167 fields, of which 35 fields were under SRI practices whereas 132 fields were under conventional ones. We found that SRI was practiced more often in fields where supplementary water was available from ponds, rivers, and tube wells than those without it. In the former fields, SRI increased rice yield, whereas it did not in the latter fields. In SRI fields without supplementary water, younger seedlings planted earlier should have experienced severer water stress than those in conventional fields, and lost advantage of SRI to develop more tillers and thereby more grains. The dependency of yield increase by SRI on supplementary water availability implies that the prospect of rice yield increase via greater adoption of SRI would hinge on the capacity to increase supplementary water availability in the rainfed fields.","PeriodicalId":118800,"journal":{"name":"Tropical agriculture and development","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129972105","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: 5

Identification of Chrysanthemum (Chrysanthemum × morifolium) Cultivars Using Flower Pigment-related Genes 利用花色素相关基因鉴定菊花品种

Tropical agriculture and development Pub Date : 1900-01-01 DOI: 10.11248/JSTA.55.166

Ayano Shudo, Satoko Goeku, K. Tarora, N. Gima, N. Urasaki, Tsuyoshi Tokunaga, K. Ureshino, E. Miyagi, Shiro Sekizuka, S. Adaniya

引用次数: 2

Soil Micronutrient Availability as Affected by Land Use and Management in a Tropical Volcanic Mountain Area of West Sumatra, Indonesia 印度尼西亚西苏门答腊岛热带火山地区土地利用和管理对土壤微量养分有效性的影响

Tropical agriculture and development Pub Date : 1900-01-01 DOI: 10.11248/JSTA.62.136

S. S. Abe, K. Ashida, K. Kamarudin, M. Kamil, I. M. Umami, Hermansah

引用次数: 4

Changes in the Vegetative Growth of Sago Palm (Metroxylon sagu Rottb.) Suckers from Different Generation Orders in a Clump 西米棕榈营养生长的变化一群不同世代的吸盘

Tropical agriculture and development Pub Date : 1900-01-01 DOI: 10.11248/JSTA.59.50

A. Irawan, Yoshinori Yamamoto, A. Miyazaki, Tetsushi Yoshida, F. Jong

{"title":"Changes in the Vegetative Growth of Sago Palm (Metroxylon sagu Rottb.) Suckers from Different Generation Orders in a Clump","authors":"A. Irawan, Yoshinori Yamamoto, A. Miyazaki, Tetsushi Yoshida, F. Jong","doi":"10.11248/JSTA.59.50","DOIUrl":"https://doi.org/10.11248/JSTA.59.50","url":null,"abstract":"This experiment studied the periodic changes in the growth of sago palm suckers with different generation orders from the mother palm in a clump. Those were suckers which directly generated from the rhizome base of the mother palm (S1), generated from the rhizome base of the S1 (S2), and generated from the rhizome base of the S2 (S3). Plant height and number of leaves at the start of measurement were higher in the order; S1>S2>S3. Two different treatments were employed in the clumps; those without (Plot I) and with (Plot II) maintenance practices. Those practices, such as manual weeding and cleaning the debris inside and surrounding the clumps, were only carried out for about one year. During early one year observation, no reduction in the survival rate was observed in Plot II but it reduced to 22% in Plot I. One year after the maintenances were stopped in Plot II, the survival rate of S1 remained unchanged but small reductions were observed in S2 and S3. At 45 months later, the average survival rates of S1, S2, and S3 from both Plots were 50%, 64%, and 34%, respectively. In Plot I, S3 increased their heights more rapidly compared to S2 and S1. These results were different from those in the Plot II where all measured suckers showed similar growth. In both Plots, the production of newly-expanded leaves of S1 was faster than those of S2 and S3 while S2 and S3 produced similar numbers.","PeriodicalId":118800,"journal":{"name":"Tropical agriculture and development","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126061889","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: 1

Developing a Remote Sensing-based Mapping Method for Swidden Land Use Detection: 基于遥感的瑞典土地利用探测制图方法研究

Tropical agriculture and development Pub Date : 1900-01-01 DOI: 10.11248/JSTA.64.13

Khin Nilar Swe, E. Nawata

引用次数: 1

Effects of Temperature and Medium Composition on Pollen Germination of 'Bengal' and 'Chakrapat' Lychee ( Litchi chinensis Sonn.) in vitro 温度和培养基组成对“孟加拉”和“查克拉帕”荔枝花粉离体萌发的影响

Tropical agriculture and development Pub Date : 1900-01-01 DOI: 10.11248/JSTA.57.120

H. Matsuda, H. Higuchi

引用次数: 9

Anatomical Study for Critical High Temperature on the Anthesis Day to Inhibit Passion Fruit Set 花期临界高温抑制百香果坐果的解剖学研究

Tropical agriculture and development Pub Date : 1900-01-01 DOI: 10.11248/JSTA.64.171

H. Matsuda, H. Higuchi, Masanori Okabe, T. Ogata

引用次数: 3

Is Africa Advancing Food Security? Insights from Rural Households in Malawi 非洲正在推进粮食安全?马拉维农村家庭的见解

Tropical agriculture and development Pub Date : 1900-01-01 DOI: 10.11248/JSTA.62.24

Hiroko Gono, T. Takane

引用次数: 0