Journal of Tropical Crop Science最新文献_第6页

Harvesting Criteria and Drying Methods to Improve the Quality of Foxtail Millet Seeds (Setaria italica L. Beauv.) 提高谷子品质的采收标准及干燥方法

Journal of Tropical Crop Science Pub Date : 2021-10-20 DOI: 10.29244/jtcs.8.03.168-176

Putri Aulia Lainufar, Abdul Qadir, M. R. Suhartanto, S. W. Ardie

{"title":"Harvesting Criteria and Drying Methods to Improve the Quality of Foxtail Millet Seeds (Setaria italica L. Beauv.)","authors":"Putri Aulia Lainufar, Abdul Qadir, M. R. Suhartanto, S. W. Ardie","doi":"10.29244/jtcs.8.03.168-176","DOIUrl":"https://doi.org/10.29244/jtcs.8.03.168-176","url":null,"abstract":"Foxtail millet is annual grasses with grains that are smaller than those of sorghum, rice, and wheat, and is considered one of the minor economic crops but with nutritional values similar to other major food crops. The development of millet as major cereal crop is considered challenging due to the low quality of its seeds, and studies have been conducted to improve millet’s seed quality. We conducted this study to determine the harvesting criteria of foxtail millet seeds based on the change in color of the panicles. We also wanted to determine the drying treatment, and evaluate the relationship between the position of the seed on the panicles and the seed viability and vigor. The first experiment was arranged based on a completely randomized design with panicle color as the first factor (green, yellow 75%, and brown) and drying time as the second factor (0 hours, 24 hours, 48 hours, 72 hours). The second experiment was arranged in a completely randomized design with seed position as the main factor (base, middle, tip). The study was conducted on two genotypes of millet, i.e. “BOTOK 4” and “BOTOK 10”. The highest seed quality of “BOTOK 4” and “BOTOK 10” genotypes were obtained when the panicles were brown and dried for 72 hours; the seed chlorophyll content was the lowest and water content was 8.88%, with the highest viability and vigor, i.e., germination rate of 88.3%-90%, maximum growth potential of 92%-95.3%, normal sprout dry weight 596-620 mg, vigor index of 33.6% - 21.6%, and growth rate of 18.2%-17.1% etmal-1. The highest seed viability and vigor in “BOTOK 4” genotypes were obtained from the base position, i.e., 78.7% germination rate, maximum growth potential of 83.7%, vigor index of 56.5%, growth speed of 19.6 etmal-1, normal sprout dry weight of 48 mg, radicle length of 3.3 cm) and “BOTOK 10” genotypes from the middle position with 91.5% germination, maximum growth potential of 97.2%, vigor index of 21.7%, growth speed of 17.0% etmal-1, and normal sprout dry weight 61 mg.","PeriodicalId":33751,"journal":{"name":"Journal of Tropical Crop Science","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90883218","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

Pests and Diseases in Foxtail Millet (Setaria italica L. Beauv.) Cultivated in The Greenhouse 谷子病虫害研究(英文)温室栽培

Journal of Tropical Crop Science Pub Date : 2021-10-20 DOI: 10.29244/jtcs.8.03.146-153

H. S. Khairani, L. Nurulalia, S. W. Ardie

{"title":"Pests and Diseases in Foxtail Millet (Setaria italica L. Beauv.) Cultivated in The Greenhouse","authors":"H. S. Khairani, L. Nurulalia, S. W. Ardie","doi":"10.29244/jtcs.8.03.146-153","DOIUrl":"https://doi.org/10.29244/jtcs.8.03.146-153","url":null,"abstract":"Greenhouse ecosystem with more stable abiotic factors could affect the population and diversity of pests and diseases found on foxtail millet (Setaria italica L. Beauv.) compared to their natural ecosystems. We observed and identified pests and diseases in seven genotypes of foxtail millet namely “Toraja”, “ICERI 5”, “ICERI 6”, “Botok 4”, “Botok 10”, “Mauliru”, and “Hambapraing”; these activities are important for the formulation of appropriate integrated pest management techniques. Using plant samples that were at the end of their vegetative phase, we found white mycelia of Fusarium incarnatum (yellowish-white colonies) and F. verticilloides (violetish-pink colonies) covering the ear-tip of the seeds and developed rapidly leading to seed rotten symptoms in “Toraja”, “ICERI 5”, and “ICERI 6”. The disease severity remained constant after these integrated management techniques were put in place. However, abnormalities in leaves leading to failure of panicle emergence occurred in “Botok 4”, “Botok 10”, “Mauliru”, and “Hambapraing”. These were caused by the fungi Penicillium sp. Identical controlling techniques were applied to this incidence and the disease incidence was reduced. Corn leaf aphids (Rhophalosiphum maidis) and rice mealybugs (Brevenia rehi) were recorded as main insect pests with severe attack. The aphid, R. maidis, colonized the stems and were associated with the sooty mold (Capnodium sp.), resulting in wilting. The mealybugs, B. rehi, colonized the flag leaves resulting in leaf rotting. Insecticide and isolating the attacked plants were used as the controlling techniques. Red-mites (Tetranychus urticae) were also detected as indicated by chlorotic spots on the upper part of the leaves. Acaricide was used to reduce its population. The pests and diseases found in the seven genotypes of foxtail millet are commonly known to occur in Poaceae. In general, greenhouse ecosystem for foxtail millet facilitated planting with high population with lower diversity of pests and diseases compared to the open field planting.","PeriodicalId":33751,"journal":{"name":"Journal of Tropical Crop Science","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87054235","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

Evaluation of Some Selected Mango Varieties for Fruit Powder Production In Ghana 加纳果粉生产中若干芒果品种的评价

Journal of Tropical Crop Science Pub Date : 2021-10-20 DOI: 10.29244/jtcs.8.03.195-201

V. Edusei, G. Essilfie, F. Saalia, J. Ofosu-Anim, V. Eziah

{"title":"Evaluation of Some Selected Mango Varieties for Fruit Powder Production In Ghana","authors":"V. Edusei, G. Essilfie, F. Saalia, J. Ofosu-Anim, V. Eziah","doi":"10.29244/jtcs.8.03.195-201","DOIUrl":"https://doi.org/10.29244/jtcs.8.03.195-201","url":null,"abstract":"Mango is an important fruit, which receives high patronage in Ghana. However, the highly seasonal and perishable nature of the crop, besides being a constraint to both farmers and processors, also deny consumers the opportunity to enjoy the fruit all year round. Use of the stable powder form of mango can serve to fill the gap during the mango off-season. This study evaluated the fruits of four major mango varieties (“Keitt”, “Kent”, “Palmer” and a local variety) grown in Ghana for their suitability for fruit powder production. The fresh fruit pulp and reconstituted freeze-dried powder of the varieties were analyzed for physicochemical characteristics. The study revealed that “Keitt”, “Kent” and “Palmer”, which are the exotic varieties, had significantly (p≤0.05) high pulp content of 68%, 66% and 63% respectively indicating potential for high fruit powder yield. Acceptable levels of total soluble solids, titratable acidity, ascorbic acid and beta-carotene contents were observed in the fresh fruit and the freeze-dried powders of the varieties. There was no significant (p≤0.05) difference in Yellowness Index between fresh fruit pulp of “Keitt”, “Kent” and “Palmer” and their respective reconstituted freeze-dried powders. These three mango varieties exhibited considerably good quality in terms of physical and chemical characteristics for processing and utilization as fruit powder. The production of high quality mango powder from these varieties could therefore serve as substitutes in the off-season and also reduce postharvest loss.","PeriodicalId":33751,"journal":{"name":"Journal of Tropical Crop Science","volume":"31 7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82755190","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

Water Requirement Estimation of One-Whorl Rubber (Hevea brasiliensis Müll. Arg.) Planting Materials 单轮橡胶树(Hevea brasiliensis m<e:1>)水分需要量估算。参数)。种植材料

Journal of Tropical Crop Science Pub Date : 2021-10-20 DOI: 10.29244/jtcs.8.03.161-167

A. Cahyo

{"title":"Water Requirement Estimation of One-Whorl Rubber (Hevea brasiliensis Müll. Arg.) Planting Materials","authors":"A. Cahyo","doi":"10.29244/jtcs.8.03.161-167","DOIUrl":"https://doi.org/10.29244/jtcs.8.03.161-167","url":null,"abstract":"Fulfilling water requirement is one of the important factors for a successful production of rubber tree planting materials. Research on the irrigation requirement for young rubber trees is crucial to determine the amount of water required for an optimum plant growth. The aim of this study was to determine the amount of water needed by one whorl rubber planting material to compensate the amount of evapotranspiration, as well as to estimate the crop coefficient value (kc). The research was conducted at the Indonesian Rubber Research Institute on July 2021. Daily evapotranspiration (ETc) of rubber planting materials of clone “PB 260”, “RRIC 100”, and “IRR 112” planted in polybag size 13 cm x 35 cm were measured by weighing the planting materials daily. Evapotranspiration for the reference crop was collected from the Indonesian Rubber Research Institute climatological station. Our study showed that the amount of water required by each rubber planting material was 92.21 mL per day per polybag when the mean of daily reference evapotranspiration (ETo) was 3.67 mm per day. Therefore, the crop coefficient (kc) of one whorl rubber planting material arranged sparsely was ± 0.32. This kc value can be used as a base to calculate water requirement of one whorl rubber planting material based on the daily reference evapotranspiration (ETo).","PeriodicalId":33751,"journal":{"name":"Journal of Tropical Crop Science","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88741258","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

Evaluation of Silica Uptake from Foliar-Applied Silicon Nanoparticles in Melon (Cucumis melo L.) under Soilless Culture 无土栽培条件下叶面施用纳米硅对甜瓜二氧化硅吸收的评价

Journal of Tropical Crop Science Pub Date : 2021-10-20 DOI: 10.29244/jtcs.8.03.135-145

Haian Amin Badrieh, W. D. Widodo, A. Susila, W. Suwarno

{"title":"Evaluation of Silica Uptake from Foliar-Applied Silicon Nanoparticles in Melon (Cucumis melo L.) under Soilless Culture","authors":"Haian Amin Badrieh, W. D. Widodo, A. Susila, W. Suwarno","doi":"10.29244/jtcs.8.03.135-145","DOIUrl":"https://doi.org/10.29244/jtcs.8.03.135-145","url":null,"abstract":"Melon (Cucumis melo L.) is a fruit commodity that gets a great interest to be developed in Indonesia and has a high nutritional value. However, the fungal infection and pathogens in melon cultivation are considered significant problems that are difficult to manage. Therefore, efforts are needed to improve the productivity and quality of melon and prevent pest and disease attacks. One mineral nutrient that is assumed to enhance plant resistance and increase the quality and production of melon is silica. The purpose of the research was to evaluate silica absorption from foliar-applied silicon nanoparticles in melon under soilless culture and improve melon fruit's growth and quality by applying silica fertilizer. The experimental design used was a split-plot randomized complete block design 3 x 2 factorial pattern with four replicates. The main plot factor is silica fertilizer (Novelgro, water-soluble), consisting of three silica concentrations of 0.67; 1.33 ppm, and control. The spray volume of each treatment was 160 ml per plant with seven days' intervals and a frequency of three times. The subplot factor is melon varieties consisting of “Alisha” and “Glamour”. The findings showed that silica fertilizer significantly increased the plant height, stem diameter, internode length, total number of hermaphrodite flowers, number of hermaphrodite flowers that are swelling, while decreased the fruit moisture content and gave the best average fruit position. Instead, The “Glamour” variety gave the best response to plant growth and fruit quality. Moreover, the melon plant could absorb silica in the low category (<1% Si). The highest silica contents were found in the “Alisha” cultivar leaves and the “Glamour” cultivar's rinds treated with the silica concentration of 1.33 ppm as much as 0.34% and 0.30%, respectively.","PeriodicalId":33751,"journal":{"name":"Journal of Tropical Crop Science","volume":"75 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89817660","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

The Effect of Fertilizer Treatment on the Morphology of Maize (Zea mays) Planted in An Intercropping System in the Immature Oil Palm Plantation 化肥处理对未成熟油棕间作玉米形态的影响

Journal of Tropical Crop Science Pub Date : 2021-10-20 DOI: 10.29244/jtcs.8.03.187-194

Alhaviz Alhaviz, H. Hariyadi, Supijatno Supijatno

{"title":"The Effect of Fertilizer Treatment on the Morphology of Maize (Zea mays) Planted in An Intercropping System in the Immature Oil Palm Plantation","authors":"Alhaviz Alhaviz, H. Hariyadi, Supijatno Supijatno","doi":"10.29244/jtcs.8.03.187-194","DOIUrl":"https://doi.org/10.29244/jtcs.8.03.187-194","url":null,"abstract":"Applying and optimizing an intercropping system between oil palm and seasonal crops such as maize in the immature palm oil plantation is one way of obtaining additional income for farmers until the main crop (oil palm) mature and ready to harvest. The aim of the research was to determine the effects of fertilizers, particularly nitrogen (N) and potassium (K) on the growth and production of maize in an intercropping system with oil palm. The experiment, using one-factor randomized complete block design, was conducted at the Cikabayan Experimental Station, IPB University, Indonesia, from August to December 2020. Four set-ups were prepared corresponding to four different fertilizer applications as follows: A0 (without treatment), A1 (240 g Urea + 80 g KCl + 320 g SP-36 per plot), A2 (480 g Urea + 160 g KCl + 320 g SP-36 per plot), A3 (720 g Urea + 240 g KCl + 320 g SP-36 per plot). Applying the highest dosages of N and K (A3), significantly increased plant height, fresh weight, number of leaves, leaf area, stem diameter, cob length, cob weight, and husk-free cob weight. Intercropping maize with immature oil palm did not affect the oil palm growth.","PeriodicalId":33751,"journal":{"name":"Journal of Tropical Crop Science","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89289303","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

Heat Stress Affects Seed Set and Grain Quality of Vietnamese Rice Cultivars during Heading and Grain Filling Period 热胁迫对抽穗期和灌浆期越南水稻品种结实率和籽粒品质的影响

Journal of Tropical Crop Science Pub Date : 2021-10-20 DOI: 10.29244/jtcs.8.03.154-160

Tran Loc Thuy, Tran Ngoc Thach, T. Xa, Chau Thanh Nha, V. My, Nguyen Thi Thao Nguyen, N. V

{"title":"Heat Stress Affects Seed Set and Grain Quality of Vietnamese Rice Cultivars during Heading and Grain Filling Period","authors":"Tran Loc Thuy, Tran Ngoc Thach, T. Xa, Chau Thanh Nha, V. My, Nguyen Thi Thao Nguyen, N. V","doi":"10.29244/jtcs.8.03.154-160","DOIUrl":"https://doi.org/10.29244/jtcs.8.03.154-160","url":null,"abstract":"Environmental stress trigger a variety of rice plant response, ranging from alters seed set, grain yield and grain quality during flowering and grain filling stage. Efforts are required to improve our understanding of the impact of heat stress on rice production, which are essential strategies in rice cultivation. This article investigated the seed set, yield components and grain yield of Vietnamese rice cultivars (Indica germplasm) under high temperature environment during the flowering and grain filling stage. Six rice cultivars, including popular cultivars and new cultivars of Cuu Long Delta Rice Research Institute, and one popular extraneous cultivar with differences in maturing time, were grown in pots at high temperature (HT) and natural temperature condition as control (CT). All rice cultivars were subjected to the high temperature starting from the heading stage to the harvest maturity, applied by greenhouse effect. The greenhouse has about 25 cm window opening on 3 sides for air ventilation. The seed set rate of the heat-sensitive rice genotypes decreased significantly under HT, leading to a significant reduction in grain yield. The lowest seed set was recorded in “OM4900” (44.3%) and “OM18” (39.9%) under high temperature environment. The lower yield in all rice cultivars at an elevated temperature resulted in a dramatic decrease of filled grains and contributed to a loss of 1000-grain weight. ‘“OM892” is a potential rice cultivar for heat tolerant breeding program due to the seed set percentage was above 80% in both HT and CT conditions. High temperature during the grain filling stage resulted in a decreased amylose and increased chalkiness for all OM cultivars.","PeriodicalId":33751,"journal":{"name":"Journal of Tropical Crop Science","volume":"95 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83446084","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

Hybrid Vigour Study of Yield and Yield Related Characters on Limmu Coffee (Coffea arabica L.) Genotypes at South-Western Ethiopia Limmu Coffee (Coffea arabica L.)产量及相关性状杂交活力研究埃塞俄比亚西南部的基因型

Journal of Tropical Crop Science Pub Date : 2021-07-04 DOI: 10.29244/JTCS.8.02.89-100

Gemechu Asefa, H. Mohammed, Ashenafi Ayano

{"title":"Hybrid Vigour Study of Yield and Yield Related Characters on Limmu Coffee (Coffea arabica L.) Genotypes at South-Western Ethiopia","authors":"Gemechu Asefa, H. Mohammed, Ashenafi Ayano","doi":"10.29244/JTCS.8.02.89-100","DOIUrl":"https://doi.org/10.29244/JTCS.8.02.89-100","url":null,"abstract":"Coffee (Coffea arabica L.) is one of the most important crops cultivated worldwide and has a great economic impact in many countries including Ethiopia. Hybrid vigor (heterosis) breeding can enhance productivity of coffee. Hybrid vigor study was conducted on 5 x 5 half-diallel mating involving 17coffee genotypes (5 parents, 10 F1 hybrids and two checks) for yield and its related traits in 2018. The study locations include Jimma, Agaro and Gera research centers of south-western Ethiopia using randomized completely block design with three replications. There are significant differences among 17 genotypes and 15 diallel genotypes (checks excluded) for all traits; the crosses showed significant and positive average heterosis (mid parent) and heterobeltiosis (better parent) for all traits. Crosses showed significant variation in the expression of standard heterosis (SH) and useful heterosis (UH) for fruit length (FL), fruit width (FW), bean length (BL), bean width (BW), bean thickness(BT), and hundred bean weight (HBW) across locations. Heterobeltiosis ranged from -9.06 to 88.79% and -17.81 to 67.98% for yield at Jimma and Gera, respectively. Mean SH and UH was positive and between 5 and 10% for BL and BT and <5% for all fruit characters and BT across locations. Mean of SH and UH was 14.62% and 11.82%, respectively for HBW. Crosses P4 x P5, P1 x P5 and P2 x P5 increased yield by 25.13% (637.75 kg), 14.05% (356.64 kg) and 5.78% (146.59 kg) over commercial pure line variety across three locations, respectively. Based on heterosis and mean performance hybrids P4 x P5, P1 x P5, P3 x P5, and P1 x P2 found as promising hybrids for yield and bean characters. Thus, these hybrids should be advanced in the next breeding program and tested through incorporating other traits.","PeriodicalId":33751,"journal":{"name":"Journal of Tropical Crop Science","volume":"35 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77690315","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

Estimation of Heterosis Among Potato (Solanum tuberosum L.) Crosses in Ethiopia 马铃薯马铃薯杂种优势评价埃塞俄比亚的十字架

Journal of Tropical Crop Science Pub Date : 2021-07-04 DOI: 10.29244/JTCS.8.02.110-123

Manamno Workayehu, W. Mohammed, T. Abebe

{"title":"Estimation of Heterosis Among Potato (Solanum tuberosum L.) Crosses in Ethiopia","authors":"Manamno Workayehu, W. Mohammed, T. Abebe","doi":"10.29244/JTCS.8.02.110-123","DOIUrl":"https://doi.org/10.29244/JTCS.8.02.110-123","url":null,"abstract":"Determination of heterosis in tetraploid potato crosses is necessary for identification of superior genotypes for variety development or breeding program. However, producing heterotic potato genotypes through local crossing is not a common practice in Ethiopia. Hence, this study was conducted to estimate the magnitude of better, and standard check heteroses in potato clones that are produced from local crossing. This will help identify potential of hybrid for future breeding schemes. Heterosis of 75 clones were evaluated using a 9 x 9 Simple Lattice design. Results of the analysis of variance showed significant differences for all the growth characters, except medium-sized tubers and specific gravity of tuber. These results indicate the presence of genetic variability among the samples. The clones exhibited as high as 55.62 and 58.31 t.ha-1 marketable and total tuber yield, respectively. These clones also displayed mid, better parent and standard heterosis of 118.8%, 90.5% and 239.1%, respectively, for marketable tuber yield. This result indicates the presence of high magnitude heterosis which could be used to exploit the hybrid vigor. In addition, mid, better parent, and standard check heterosis were estimated at 79.36%, 61.04% and 209.17% for total tuber yield, respectively. Our results show the highest chance of getting heterotic offspring than parental and standard check varieties to developing new potato varieties. The information generated from this study would be valuable for researchers who intend to develop high-yielding varieties of potato","PeriodicalId":33751,"journal":{"name":"Journal of Tropical Crop Science","volume":"33 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82674775","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

Variation in Leaf Morphology of Sago Trees (Metroxylon sagu) in South Borneo Province, Indonesia. 印度尼西亚南婆罗洲西米树(Metroxylon sagu)叶片形态的变异。

Journal of Tropical Crop Science Pub Date : 2021-07-04 DOI: 10.29244/JTCS.8.02.51-59

Hasan A. Rahman, M. H. Bintoro, Supijatno Supijatno

{"title":"Variation in Leaf Morphology of Sago Trees (Metroxylon sagu) in South Borneo Province, Indonesia.","authors":"Hasan A. Rahman, M. H. Bintoro, Supijatno Supijatno","doi":"10.29244/JTCS.8.02.51-59","DOIUrl":"https://doi.org/10.29244/JTCS.8.02.51-59","url":null,"abstract":"Natural populations of sago (Metroxylon sagu) in Indonesia show morphological variations in its organs, particularly the leaves. The existing variations resulted in sago type names provided by the locals. The sago plant types include Mahang, Buntal, Salak, Madang and Gandut. Sago leaves are economically important in Indonesia, mainly because they provide a potentially profitable and environment-friendly source of house roofing materials. Determining leaf variation among sago plants would provide information for a better way of choosing which among the current accessions/varieties of sago has the best leaf quality and production. Leaf variations in sago were recorded in shape, size, and color. The aim of this study are a) to compare differences in leaf morphology among sago types obtained from different geographic areas, and b) to determine whether these different sago types correspond to certain sago plant grouping. The qualitative and quantitative analysis showed variations in leaf characteristics of sago trees. Additionally, this study shows that based on leaf variations, the sago of South Borneo Province can be separated into two groups. The first group is Mahang and Gandut, which have long rachis, leaflets and leaves, and largest leaf area. The second group composed of Buntal, Salak and Madang accessions, which have short rachis and leaves, and smallest leaf area. Other results showed that there were characters that contributed significantly to the diversity of sago plants in the study area including spines, white stripe or banding on the rachis and petiole length. In line with our results, Mahang and Gandut accessions are the best accessions to be cultivated in the area, because they have wider leaves which support higher rates of photosynthesis. Further study should be conducted on phylogenetic using DNA sequencing to confirm divisions of the two sago groups. \u0000 ","PeriodicalId":33751,"journal":{"name":"Journal of Tropical Crop Science","volume":"50 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80718415","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