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Rahman M.M.,Bangladesh Agricultural Research Institute | Rahman M.M.,Bangabandhu Sheikh Mujibur Rahman Agricultural University | Hossain M.M.,Bangabandhu Sheikh Mujibur Rahman Agricultural University | Khaliq Q.A.,BSMRAU | Moniruzzaman M.,Bangladesh Agricultural Research Institute
Scientia Horticulturae | Year: 2014

The experiment was conducted on strawberry having four planting time one month interval from 01 September to 01 December and five promising strawberry genotypes viz. Sweet Charlie, Festival, Camarosa, FA 008 and BARI strawberry-1 for observing their effects on growth, yield and quality under sub tropical climatic conditions of Bangladesh during the winter seasons of 2009-2010 and 2010-2011. The study revealed that irrespective of planting dates 'Camarosa' had the maximum growth being at par with FA008 but it was not reflected in yield and yield attributes because of higher plant mortality% in 'Camarosa' and FA 008. Plant mortality% was found lower in FA 008 and BARI Strawberry-1 than Camarosa, Festival and Sweet Charlie irrespective of planting time. The genotype 'Camarosa' planted on September exhibited wider harvest duration (96.00 days) followed by 'Festival' (93.67 days) planted on the same date. The maximum number of fruitsplant-1 was obtained in Sweet Charlie (39.00) of October planting, while plants of BARI Strawberry-1 of December planting produced only 12 fruits. Plants of 'Festival' of October planting gave the heaviest fruit (17.78g) closely followed by those of 'Sweet Charlie' and 'Camarosa' planted on the same date. On the other hand, plants of FA 008 and BARI Strawberry-1 of December planting gave the lightest fruit. Sweet Charlie planted on 01 October performed well and produced the highest yield (667.22gplant-1), while BARI Strawberry-1 of December planting produced the lowest yield (79.71gplant-1). Fruits of early planted plants contained more TSS and ascorbic acid than late planted plants. © 2014 Elsevier B.V.


Rahman M.M.,Kanazawa University | Rahman M.M.,Bangladesh Rice Research Institute | Rasaul M.G.,BSMRAU | Hossain M.A.,Bangladesh Rice Research Institute | And 2 more authors.
Journal of Crop Improvement | Year: 2012

Assessment of genetic diversity and molecular characterization among elite rice varieties of Bangladesh is very important for germplasm management, varietal identification, and DNA fingerprinting. Thirty-four microsatellite markers were studied across 21 types of rice to characterize and discriminate among different varieties. The number of alleles per locus ranged from 2 to 11, with an average of 4.18 alleles across 34 loci. A total of 57 rare alleles were detected at 24 loci, whereas 42 unique alleles were detected at 20 loci. The results revealed that 14 rice varieties produced unique alleles that could be used for identification, molecular characterization, and DNA fingerprinting of these varieties. Polymorphic information content (PIC) values ranged from 0.157 to 0.838, with an average of 0.488, which revealed that much variation was present among the studied varieties. The PIC values revealed that RM401 might be the best marker for identification and diversity estimation of rice varieties, followed by RM566, RM3428, RM463, and RM8094 markers. The UPGMA cluster dendrogram created in this study identified five clusters with a similarity coefficient of 0.50. The SSR polymorphism and diversity could likely be attributed to pedigree. In this study, eight SSR markers (RM10713, RM279, RM424, RM6266, RM1155, RM289, RM20224, and RM5371) were identified that produced specific alleles only in the aromatic rice varieties and were useful for varietal identification and DNA fingerprinting of these varieties. The findings of this study should be useful for varietal identification and could help in background selection in backcross breeding programs. © 2012 Copyright Taylor and Francis Group, LLC.


Shahidul Haque M.,University of Rajshahi | Monirul Islam M.,University of Rajshahi | Abdur Rakib M.,University of Rajshahi | Asraful Haque M.,BSMRAU
Saudi Journal of Biological Sciences | Year: 2014

Basella alba is a soft green vegetable, survives in adverse environmental circumstances, for example, very cold temperature although the mechanism and the temperature sensitivity in this species are not clarified. Pot experiment for cultivation of B. alba was carried out to examine the effects of low temperature on the synthesis of two enzymes, polyphenol oxidase (PPO) and peroxidase (POD) in leaf of this plant. They were exposed to 8. °C for 24. h, 48. h and 72. h periods and the respective controls were kept in ambient room temperature for the above mentioned time. Low temperature causes the higher activity of PPO and the threshold level was found after 48. h period when compared to the respective controls. The activity was higher at 10. mM catechol, substrate for this enzyme, than 100. mM and 200. mM concentration, however, the three doses yielded the gradual increase in activity. Similar stimulatory effects on peroxidase (POD) activity in leaf were observed whenever the plants were exposed to cold for 24. h, 48. h and 72. h periods and maximal after 48. h period. Our findings demonstrate that the higher activity of these enzymes in leaf might be an index for the regulatory mechanism of the survival of these species in such adverse environment. © 2013.


Rahman M.M.,Bangladesh Agricultural Research Institute BARI | Rahman M.M.,Bangabandhu Sheikh Mujibur Rahman Agricultural University | Mian M.,BSMRAU
Kasetsart Journal - Natural Science | Year: 2014

The interactive effect were studied of four planting dates (1 September, 1 October, 1 November and 1 December) and five promising strawberry cultivars (Sweet Charlie, Festival, Camarosa, FA 008 and BARI strawberry-1) over two years from winter 2009/2010 to 2010/2011 under subtropical climatic conditions in Bangladesh. Among the interactions, the cultivar Camarosa planted on 1 September exhibited the tallest plants followed by Festival planted on the same date, while plants of BARI Strawberry-1 were the shortest when planted on 1 December irrespective of the planting year. Regardless of planting year, the highest number of leaves per plant was obtained on Festival followed by Camarosa when planted on 1 September, while plants of FA 008 produced the lowest number of leaves per plant when planted on 1 December. Plants of Festival planted on 1 September exhibited the maximum mortality percentage followed by Camarosa and Sweet Charlie planted on the same date in 2009 and 2010. On the other hand, plants of BARI Strawberry-1 planted on 1 December in 2009 and 2010 exhibited only 3 and 5% plant mortality, respectively. Among the cultivars studied, Sweet Charlie planted on 1 October produced the highest yield (16.8 t.ha-1) in 2009/2010 and 16.7 t.ha-1 in 2010/2011, while BARI Strawberry-1 planted on 1 December produced the lowest yields (2.4 and 2.2 t.ha-1 in 2009/2010 and 2010/2011, respectively. The total soluble solids (TSS) and ascorbic acid contents of fruits were highly influenced by the interaction effect of planting date and cultivar and regardless of cultivar and year, fruits from early plantings contained more TSS and ascorbic acid than from late plantings in both years. © 2014 Kasetsart J. (Nat. Sci.). All right received.


Research and Markets (http://www.researchandmarkets.com/research/7rqmsl/global_and_china) has announced the addition of the "Global and China Nano Composite Zirconia Industry Report, 2015" report to their offering.      (Logo: http://photos.prnewswire.com/prnh/20130307/600769 ) Nano Zirconia, with zirconium dioxide as key ingredient, constitutes nano composite zirconia after being added with rare-earth elements (primarily yttrium oxide) and other oxides. Nano composite zirconia gets widely used in fields like grinding materials, coating, fuel cell, artificial teeth, automobile exhaust catalyst promoter, etc. As its industrialization is under way for just three decades, nano composite zirconia's applications in only grinding media and oxygen sensor have become mature, while other applicable areas are experiencing a fast growing period and even at the initial stage. In 2014, the global sales volume of nano composite zirconia totaled roughly 40,000 tons, which generated revenue of RMB14 billion. And China's nano composite zirconia market capacity approximated 7,000 tons. Globally, the nano composite zirconia capacity spreads mainly in Europe and Japan, with the companies with complete industrial layout including Saint-Gobain, Tosoh, and DKKK. In addition, the players like Showa Denko, Solvay, and Sumitomo Osaka Cement occupy an important position in some market segments. Domestically, only Sinocera and Jiujiujiu were the first to make technological breakthroughs and began pilot production. Sinocera's scale of pilot production totaled 200t/a. In the first half of 2014, its nano composite zirconia segment contributed revenue of RMB4.809 million, versus the operating cost of RMB2.961 million. Additionally, the company announced a 1,500 t/a expansion plan, according to which the products (700 tons) from the first phase of the project would be very likely released in the second quarter of 2015. Jiujiujiu has developed the about 10nm, 20nm, 40nm, and 80nm series of nano composite zirconium dioxide powder. At present, the company's pilot project is in trial production. Global and China Nano Composite Zirconia Industry Report, 2015 mainly covers the following: Key Topics Covered: 1. Overview of Nano Composite Zirconia 1.1 Definition and Application 1.2 Industrial Chain 1.3 Production Process 2. Development of Global and China Nano Composite Zirconia Industry 2.1 Market Size 2.2 Cost Analysis 2.3 Enterprises' Layout 2.4 Enterprises' Profitability 3. Main Applications of Nano Composite Zirconia 3.1 Abrasive Media 3.2 Coating 3.3 Knives 3.4 Industrial Structural Ceramics 3.5 Oxygen Sensor 3.6 Fuel Cell 3.7 Special Mechanical Parts 3.8 Optical Fiber Connector 3.9 Dental Materials 3.10 Ceria-zirconia Solid Solution 4. Key Enterprises 4.1 Saint-Gobain 4.2 Tosoh 4.3 DKKK (Daiichi Kigenso Kagaku Kogyo) 4.4 Showa Denko 4.5 Solvay 4.6 Sumitomo Osaka Cement 4.7 Sinocera 4.8 Jiangsu Jiujiujiu Technology 4.9 HySci Tianjin For more information visit http://www.researchandmarkets.com/research/7rqmsl/global_and_china

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