Journal of Tropical Crop Science最新文献_第9页

Potassium Sources and Rates for Drip Irrigated Polyethylene Mulched Chilli Pepper 滴灌聚乙烯地膜辣椒的钾源和钾量

Journal of Tropical Crop Science Pub Date : 2019-07-17 DOI: 10.29244/jtcs.6.02.89-97

Kiki Kusyaeri Hamdani, A. Susila, P. Purwono, Ketty Suketi

引用次数: 2

Cocopeat as Soil Substitute Media for Rubber (Hevea brasiliensis Müll. Arg.) Planting Material 椰胶在巴西橡胶树土壤替代中的应用。参数)。种植材料

Journal of Tropical Crop Science Pub Date : 2019-02-18 DOI: 10.29244/jtcs.6.01.18-29

A. Cahyo, S. Sahuri, I. S. Nugraha, R. Ardika

{"title":"Cocopeat as Soil Substitute Media for Rubber (Hevea brasiliensis Müll. Arg.) Planting Material","authors":"A. Cahyo, S. Sahuri, I. S. Nugraha, R. Ardika","doi":"10.29244/jtcs.6.01.18-29","DOIUrl":"https://doi.org/10.29244/jtcs.6.01.18-29","url":null,"abstract":"To establish rubber plantations smallholders in South Sumatra, Indonesia, plant materials are planted in polybags fi lled with top soil media from the local area. Good quality media is very important to ensure optimal growth of the rubber planting materials. The availability of top soil has become increasingly limited. In order to fulfi ll the need of planting media, cocopeat, which is available in abundance in the area, can potentially be an alternative to top soil. Cocopeat can potentially be used alone, or in combination with other type of media. In this study, cocopeat was mixed with soil at several mixture ratios to determine the best formula of cocopeat based planting media for rubber planting material. The study was conducted from August 2016 to January 2017 in the Nursery of Sembawa Research Centre Experimental Field, Palembang, South Sumatra, Indonesia. A completely randomized design was employed with six combinations of cocopeat and soil, replicated three times. This study showed that the best mixture ratio is 80% cocopeat and 20% soil, whereas 100% soil or 100% cocopeat is not recommended. The use of cocopeat as planting media should be followed by balanced fertilization in order to provide nutrients that are not available in cocopeat.","PeriodicalId":33751,"journal":{"name":"Journal of Tropical Crop Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85767978","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

Weed Growth and Lowland Rice Production as Affected by Planting Patterns and Rice Varieties 种植方式和水稻品种对杂草生长和水稻产量的影响

Journal of Tropical Crop Science Pub Date : 2019-02-18 DOI: 10.29244/jtcs.6.01.67-75

Dwi Fajar Rianto, D. Guntoro, E. Santosa

{"title":"Weed Growth and Lowland Rice Production as Affected by Planting Patterns and Rice Varieties","authors":"Dwi Fajar Rianto, D. Guntoro, E. Santosa","doi":"10.29244/jtcs.6.01.67-75","DOIUrl":"https://doi.org/10.29244/jtcs.6.01.67-75","url":null,"abstract":"Weeds are one of the most limiting factors in rice cultivation. This study aims to evaluate the eff ects of rice planting patterns on the prevalence of several weed species, Cyperus iria, Echinochloa crusgalli, Fimbristylis miliacea, Leptochloa chinensis, Ludwigia octovalvis, and Spenoclea zeylanica, and to discuss the implications on rice production systems. The research was conducted in IPB Sawah Baru experimental farm in Bogor, West Java, Indonesia, from December 2017 to April 2018. The experiment was arranged in a randomized block design with two factors, rice varieties and rice planting methods. The rice varieties, “IPB 3S” and “Ciherang”, were assigned as the main plot, whereas planting methods, i.e. 25x25 tile, Legowo 2:1 (double rows), Legowo 4:1 (quadruple rows), as sub-plots. The results showed that in the “IPB 3S” plots L. octovalvis shoot dry weight decreased by 33.0%, the root dry weight of L. chinensis roots decreased by 22.6%, and the number of S. zeylanica weed leaves decreased by 28.4% compared to the plots planted with “Ciherang”. With legowo 2:1 planting method the dry weights of L. octovalvis decreased by 21.5%, L. octovalvis by 1.7%, and L. chinensis by 4.4%, and the number of weeds E. crus-galli by 7.0 % compared to Tegel 25x25 method. L. chinensis seemed to be a dominant weed at both vegetative and generative stage of rice development.","PeriodicalId":33751,"journal":{"name":"Journal of Tropical Crop Science","volume":"30 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91283032","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

Evaluation of Growth and Physiological Responses of Three Rice (Oryza sativa L.) Varieties to Elevated Temperatures 3种水稻(Oryza sativa L.)生长和生理反应的评价适应高温的品种

Journal of Tropical Crop Science Pub Date : 2019-02-18 DOI: 10.29244/jtcs.6.01.17-23

Dede Yudo Kurniawan, A. Junaedi, I. Lubis, T. Sunarti

引用次数: 3

A Review of Root Pruning to Regulate Citrus Growth 根系修剪调控柑橘生长研究进展

Journal of Tropical Crop Science Pub Date : 2019-02-18 DOI: 10.29244/jtcs.6.01.1-7

R. Budiarto, R. Poerwanto, E. Santosa, D. Efendi

{"title":"A Review of Root Pruning to Regulate Citrus Growth","authors":"R. Budiarto, R. Poerwanto, E. Santosa, D. Efendi","doi":"10.29244/jtcs.6.01.1-7","DOIUrl":"https://doi.org/10.29244/jtcs.6.01.1-7","url":null,"abstract":"Root is the important plant organ hiding below the soil that serves as plant supporting structure, water and nutrient supplier and assimilates storage. Root growth occurs in turn with shoot part, forming repeated cyclic pattern because of the photosynthate competition. Root growth regulation is one of the promising practices to boost the yield of fruit tree, especially citrus that is economically important and highly demanded fruit. Root pruning varied based on the scale of intensity and plant growth stage, including air root pruning, knife root pruning and modern pruning using root pruner machine mounted to a tractor. Root pruning to induce the growth of more fi brous root system and to correct root deformation at seedling stage have potentials to improve post-transplant growth. Besides, it has a potential to replace the use of chemical plant growth regulator for a more environmentally friendly practice. The pruning of root impeded the canopy growth, altered the plant water status leading to fl ower promotion. In addition, it is also a promising practice to overcome the alternate bearing on fruit tree, including citrus, through the suppressing of excessive growth and restricting the high fruit load during the ‘on year’ and allowing a better carbohydrate storage for the improvement of yield during the ‘off year’.","PeriodicalId":33751,"journal":{"name":"Journal of Tropical Crop Science","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75191657","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: 10

Modification of Rubber (Hevea brasiliensis Muell. Arg.) Spacing for Long-term Intercropping 橡胶树(Hevea brasiliensis Muell)的改性参数)。长期间作的间距

Journal of Tropical Crop Science Pub Date : 2019-02-18 DOI: 10.29244/jtcs.6.01.50-59

S. Sahuri, A. Cahyo, R. Ardika, I. S. Nugraha, A. Alamsyah, Nurmansyah Nurmansyah

{"title":"Modification of Rubber (Hevea brasiliensis Muell. Arg.) Spacing for Long-term Intercropping","authors":"S. Sahuri, A. Cahyo, R. Ardika, I. S. Nugraha, A. Alamsyah, Nurmansyah Nurmansyah","doi":"10.29244/jtcs.6.01.50-59","DOIUrl":"https://doi.org/10.29244/jtcs.6.01.50-59","url":null,"abstract":"Low prices of rubber has been a serious problem to rubber growers in Indonesia. Rubber-based intercropping systems offers a practical solution to this issue and increasing overall productivity, for example by growing upland rice and maize between the rubber tree rows. This study was aimed to determine the suitable spacing in rubber planting to facilitate long-term rubber-based intercropping systems. A field experiment was established in a smallholder rubber plantation in the Tanah Laut Regency, South Kalimantan with area of 50 ha. Two planting patterns of rubber clone PB260 were tested: (1) single row planting pattern (SR) by 6 m x 3 m, and (2) double row planting pattern (DR) by 18 m x 2 m x 2.5 m. The experiment showed that the girth of the rubber trees with the SR system at the 1st tapping year was slightly larger than that in the DR system, even though statistically it was not signifi cant. The latex yield per tree of SR and DR systems were similar, however, latex yield per hectare of SR system was higher than the DR system due to a higher tree population in the SR system. The DR system was technically suitable for long term intercropping, because when the rubber tree reached 8 to 9-year-old, the light penetration was > 80% at distance of about 4 m from the rubber tree rows. Economically, DR system can increase the added values for rubber farmers because it allows long term intercropping. Rubber-based intercropping with DR system is suitable to be applied, especially by smallholders, with a marginal benefi t cost ratio of around 2.07. Keywords: Hevea, intercropping system, rubber planting pattern, spatial arrangement","PeriodicalId":33751,"journal":{"name":"Journal of Tropical Crop Science","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72735420","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

Diversity of Functional Soil Microbes in Manures and Its Effect on Organic Mustard Green (Brassica juncea) Production 肥料中功能土壤微生物多样性及其对有机芥菜生产的影响

Journal of Tropical Crop Science Pub Date : 2019-02-18 DOI: 10.29244/jtcs.6.01.60-66

A. Kurniawati, M. Melati, S. Aziz, P. Purwono

{"title":"Diversity of Functional Soil Microbes in Manures and Its Effect on Organic Mustard Green (Brassica juncea) Production","authors":"A. Kurniawati, M. Melati, S. Aziz, P. Purwono","doi":"10.29244/jtcs.6.01.60-66","DOIUrl":"https://doi.org/10.29244/jtcs.6.01.60-66","url":null,"abstract":"The application of organic fertilizer, especially manures, for crop production has long-term effects for soil nutrients availability and improvement of soil structure. The improvement of soil properties involves interactions of various types of microorganism in the soil. The research aimed to study the effects of different types of manures on the diversity of functional soil microbes and its effects on organic green mustard production. The experiment was conducted at IPB organic research field, Cikarawang, Darmaga, \u0000Bogor, from April to June 2015. The experiment used a randomized complete block design with two factors; the first factor was types of manure, i.e. chicken, cow, and goat manures; the second factor was manure rates, i.e. 0 and 10 ton.ha-1, so there were six treatments in total, replicated three times. \u0000The results showed that chicken manure application resulted in a higher mustard green yield and soil-P content than application of goat manure. The addition 10 ton.ha-1 of manures increased C-organic, \u0000N, K, and C/N ratio in soil significantly, but mustard green production was not affected. The diversity of microbe population of the soil treated with all types of manures was high. The addition 10 ton.ha-1 of manures decreased the total number of microbes, but increased the number of cellulose-degrading microbes. The population of cellulose-degrading and phosphate-solubilizing microbes in the soil applied with cow manure was higher than those applied with the other manures.","PeriodicalId":33751,"journal":{"name":"Journal of Tropical Crop Science","volume":"108 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77621154","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: 0

Effect of Storage Methods and Management of Sweet Potato on the Incidence of Tuber Rot Induced by Rhizopus stolonifer in Kano, Nigeria 甘薯贮藏方法和管理对尼日利亚卡诺地区匍匐茎霉块茎腐病发病率的影响

Journal of Tropical Crop Science Pub Date : 2019-02-18 DOI: 10.29244/jtcs.6.01.8-16

B. Edun, Y. Lurwanu, M. Sunusi, R. Aliyu

{"title":"Effect of Storage Methods and Management of Sweet Potato on the Incidence of Tuber Rot Induced by Rhizopus stolonifer in Kano, Nigeria","authors":"B. Edun, Y. Lurwanu, M. Sunusi, R. Aliyu","doi":"10.29244/jtcs.6.01.8-16","DOIUrl":"https://doi.org/10.29244/jtcs.6.01.8-16","url":null,"abstract":"Different storage methods and management practices of sweet potatoes in Kano state, northwestern Nigeria, were investigated to fi nd out how they may affect the incidence of tuber rot. Three local government areas were selected for the sample collection. In each local government area, two sweet potato farming communities were selected, infected and uninfected tubers were sampled and taken to the laboratory for further studies. Pathogenicity test confi rmed Rhizopus stolonifer as the causal pathogen responsible for tuber rot and this fungus was used for the inoculation of fresh sweet potato tubers in all the storage and management methods used in the experiment. Tubers preserved using ash + sand and fungicide + sand showed the least incidence of tuber rots. Similarly, it was also observed that storage of tubers with sand alone showed a reduction in the severity of the disease across the storage weeks. There was no signifi cant difference in the incidence and severity of tuber rot between the two inoculation methods with both the treatment combinations. Our result showed that the incubation period of R. stolonifer to infect sweet potato tubers started at two days after inoculation with about 25% infection. The result also indicated that none of the tubers treated with fungicide, ash, and eucalyptus sprouted at both the storage weeks, this may be attributed to the possibility of having some inhibitory properties against sprouting.","PeriodicalId":33751,"journal":{"name":"Journal of Tropical Crop Science","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89343394","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: 4

Evaluation of Yield and Pigment Content of Eleven Genotypes of Green and Purple Pod Yard Long Bean (Vigna unguiculata (L.) Walp.) 11个基因型绿、紫色豇豆产量及色素含量评价Walp)。

Journal of Tropical Crop Science Pub Date : 2019-02-18 DOI: 10.29244/jtcs.6.01.30-40

Okky Tiara Sari Dewi, M. Syukur

{"title":"Evaluation of Yield and Pigment Content of Eleven Genotypes of Green and Purple Pod Yard Long Bean (Vigna unguiculata (L.) Walp.)","authors":"Okky Tiara Sari Dewi, M. Syukur","doi":"10.29244/jtcs.6.01.30-40","DOIUrl":"https://doi.org/10.29244/jtcs.6.01.30-40","url":null,"abstract":"The consumption of yard long bean in Indonesia is high and it has been increasing continuously, but the production and harvest area has been decreasing. New, superior long bean varieties with higher productivity are required to meet the increasing demands. The aim of this study was to evaluate the morphological and yield characters of selected purple and green long bean genotypes. The research was conducted from February to May 2018 in the Madiun district, East Java, Indonesia. The experiment was laid out in a randomized complete block design with genotypes as the single factor treatment, replicated three times. Eleven yard long bean genotypes were tested, consisting of four new genotypes, F7-013014- 4U-16-1-1, “F7-013014-4U-16-1-2”, “F7-013014- 4U-16-1-3”, and “F7-013014-7P-4-1-1”, and seven control genotypes, “KP13”, “KP14”, “KP Putih China”, “KP Putih China”, “Borneo”, “Sabrina” and “Parade”. The new genotypes, “F7-013014-4U-16-1-1, “F7- 013014-4U-16-1-2”, “F7-013014-4U-16-1-3”, and “F7-013014-7P-4-1-1” had at least one superior characters compared to the control genotypes, i.e. earlier fl owering and time to harvest, longer leaves, greater pod weight, longer pods, larger pod diameter, and higher contents of anthocyanin, carotene, chlorophyll a, chlorophyll b, and total chlorophyll. \u0000Keywords: anthocyanin, genotype, pigment, carotene, chlorophyll","PeriodicalId":33751,"journal":{"name":"Journal of Tropical Crop Science","volume":"127 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80064258","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

Evaluation of Progress Selection of F2 - F6 Population, A Cross between Two Lowland Tomato Genotypes 两个低地番茄基因型杂交F2 - F6群体的进展选择评价

Journal of Tropical Crop Science Pub Date : 2019-02-18 DOI: 10.29244/jtcs.4.1.32-40

Mohammad Wahyu Sautomo, M. Syukur

{"title":"Evaluation of Progress Selection of F2 - F6 Population, A Cross between Two Lowland Tomato Genotypes","authors":"Mohammad Wahyu Sautomo, M. Syukur","doi":"10.29244/jtcs.4.1.32-40","DOIUrl":"https://doi.org/10.29244/jtcs.4.1.32-40","url":null,"abstract":"One of the parameters that can be measured from the activities of selection is progress selection. The population of a plant which has been selected is expected to be good against a derivative of a crop which was selected. The aim of this research is to study the results of progress selection varieties superior of tomato plants down the generations in the population F2 005001 until F6 005001-4-1-12-3 with a standard tomato cultivar, “Ratna”. The result showed that the selected genotypes have shown improvements over the standard cutivar in terms of weight per fruit, fruit weight per plant, the number of fruits per plant, fruit thickness and the age of harvested plants in the population F2-005001 until F6 005001-4-1-12-3. The mean against the character being observed in the population F2 005001 until F6 005001-4-1-12-3 indicated that the result is better if compared with both parents, P1 (SSH-5 ) and P2 (Intan) and the standard cultivar “Ratna”. The value of heritability a wider sense indicate its value being on each character of being selected, while the value of heritability in a more narrow sense showed a low value on every character. The value of progress against character selection of weights per fruit, the weight of the fruit per plant, the number of fruit per plant, thick ﬂesh fruit and the age of harvest showed increased slow progress in a genotype F2 005001 followed by a period of rapid progress in a genotype F4 005001-4-1 and very slow in a genotype F6 005001-4-1-12-3.","PeriodicalId":33751,"journal":{"name":"Journal of Tropical Crop Science","volume":"60 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83959617","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