Effect of pre-sowing treatments on germination and initial seedling development of Albizia saman in the nursery     

Mohammed Alamgir M．K．Hossain 《林业研究》2005,16(3):200-204

Albizia saman （Jacq.） F. Muell. commonly known as rain tree seeds were treated with five pre-sowing treatments to study the effect of pre-sowing treatments on germination and initial seedling development in the nursery.The experiment was established in the nursery of the Institute of Forestry and Environmental Sciences.University of Chittagong, Chittagong, Bangladesh. Results revealed that Nail clipping in one side of the seed （at the distal end of the seed） （T4） provides the highest （50%） seed germination. The second highest germination （42%） was obtained for the seeds treated with immersion in cold water for 24 h （T1）. Germination was completely inhibited when the seeds immersed in boiled water for 30 s followed in cold water soaking for 24 h. Other germination parameter and initial morphological growth and biomass production of the seedlings was also higher for the treatments T4and Ti in comparison to the control （Ta）treatment. Pre-sowing treatments of T4 e.g. Nail clipping in one side of the seed （at the distal end of the seed） and T1 （Seeds immersed in cold water for 24 h） may be recommended for maximum germination and initial vigorous seedlings growth of Albizia sarnan in the nursery.  相似文献   

孟加拉国丘陵地带桔园和灌木林地土壤物理性质的比较评价(英文)     

Mohammad Shaheed Hossain Chowdhury  Md. Abdul Halim  Shampa Biswas  S. M. Sirajul Haque  Nur Muhammed  Masao Koike Assistant Commissioner  Magistrate  Office of the Deputy Commissioner  Jamalpur-  Bangladesh M. Sc. student in Mountain Forestry  University of Natural Resources  Applied Life Sciences-BOKU  Vienna  Austria Professor 《林业研究》2007,(3)

对孟加拉国丘陵地带Mro部落经营的桔园与灌木林35%和55%两种坡地土壤物理性质进行了比较与评价。每一块用地内挖掘3个土壤剖面采集不同深度(0-5cm,5-15cm and 15-30cm)的土壤样品,测定土壤水分、有机质含量和土壤密度。最大持水量、田间持水量、干或湿土壤容重和土壤孔隙度的测定仅限于表层土壤。两种坡地桔园3个深度的土壤水分含量均显著高于灌木林地相同深度的土壤水分。桔园在55%坡地内土壤有机质含量低于林地含量值,而在35%坡地内的含量值则高于林地值。两块样地内上述两项测定值均在表层土壤中最高,且随土层深度的增加而降低。与灌木林地比较,桔园地表层土壤最大持水量、孔隙度和3个不同深度的土壤密度均较低。两块用地内不同坡地的表层土田间持水量有所差异,且桔园地干或湿表层土壤容重高于林地内的数值。表5参23。  相似文献   

孟加拉国丘陵地带桔园和灌木林地土壤物理性质的比较评价     

Mohammad Shaheed Hossain Chowdhury　Md. Abdul Halim　Shampa Biswas　S. M. Sirajul Haque　Nur Muhammed　Masao Koike 《林业研究》2007,18(3):245-248

The physical properties of soil on two hill slopes of 35% and 55% in orange orchard cultivated by the Mro tribe of Chittagong Hill Tracts （CHTs） were evaluated and compared with those of bushy hill forests. Soil samples were collected from three different depths （0-5 cm, 5-15 cm and 15-30 cm）, digging three profiles in each land use for determining moisture content, organic matter content and particle density. Maximum water holding capacity, field capacity, dry and moist bulk density and porosity were determined only for the surface soils. Moisture content at all the soil depths was significantly higher （p≤ 0.05） in orange orchard than in forest on both the slopes. Orange orchard contained lower mean soil organic matter than forest on 55% slope, while it contained higher values on 35% slope compared to forest. The highest value of the above two properties was found at surface soil in both the land uses on both the slopes, decreasing with the increase of soil depth. On both the slopes maximum water holding capacity and porosity of surface soil and particle density at all soil depths were lower in orange orchard compared to those in forest. Field capacity values of surface soil did not show consistency in trend for the differences between the two land uses on both the slopes. Bulk density value of moist and dry surface soil was higher in orange orchard than in forest on both the hill slopes.  相似文献   

Selenoneine,total selenium,and total mercury content in the muscle of fishes     

Yamashita  Yumiko  Amlund  Heidi  Suzuki  Tamami  Hara  Tatsuro  Hossain  Mohammed Anwar  Yabu  Takeshi  Touhata  Ken  Yamashita  Michiaki 《Fisheries Science》2011,77(4):679-686

Levels of the selenium-containing imidazole compound selenoneine and overall organic selenium were measured in the muscle of fishes by speciation analysis. The method involves monitoring ⁸²Se levels by liquid chromatography inductively coupled plasma mass spectroscopy using a gel filtration column. Selenoneine levels were found to be highest in swordfish muscle (concentration 2.8 nmol/g tissue). The selenoneine contents of bigeye tuna, Pacific bluefin tuna, albacore, yellowfin tuna, and alfonsino muscle were 1.3–2.6 nmol/g tissue. In muscle of these fishes, most organic selenium (9–42%) was present as selenoneine. In other fish species, such as Pacific sardine, greeneye, skipjack, Pacific mackerel, horse mackerel, red sea bream, and Japanese barracuda, selenoneine levels were 0.1–1.4 nmol/g tissue, accounting for 3–34% of organic selenium. In contrast, muscle of Japanese conger, Japanese anchovy, chum salmon, Pacific saury, white croaker, and marbled sole contained levels of selenoneine below the level of detection (<0.05 nmol/g tissue). Mercury and selenium contents were 0.01–5.12 nmol/g tissue and 1.4–19.1 nmol/g tissue. The Se-to-Hg molar ratio varied from species to species, ranging from 1 for swordfish to 217 for marbled sole.  相似文献   

Inosine supplementation effectively provokes the growth,immune response,oxidative stress resistance and intestinal morphology of juvenile red sea bream,Pagrus major          下载免费PDF全文

M.S. Hossain  S. Koshio  M. Ishikawa  S. Yokoyama  N.M. Sony  M. Usami  S. Ono  T. Fujieda 《Aquaculture Nutrition》2017,23(5):952-963

A feeding trial was conducted to determine effects of dietary inosine on growth, immune responses, oxidative stress resistance and intestinal morphology of juvenile red sea bream. A semi‐purified basal diet supplemented with 0 (D1, control), 2 g kg^?1 (D2), 4 g kg^?1 (D3), 6 g kg^?1 (D4) and 8 g kg^?1 (D5) dietary inosine, respectively, to formulate five experimental diets. Each diet was randomly allocated to triplicate groups of fish (initial weight: 8 g). After 50 days of feeding trial, fish fed diets with 4 g kg^?1 inosine had the highest (p < .05) final weight, weight gain and specific growth rate. Similarly, improved feed intake, feed conversion ratio and protein efficiency ratio were also found at 4 g kg^?1 inosine supplemented group. Some non‐specific immune parameters such as total serum protein, lysozyme activity and bactericidal activity tended to be higher for fish fed diets supplemented with inosine. Peroxidase and catalase activity also influenced (p < .05) by dietary inosine supplementation. Fish fed 2 g kg^?1 and 4 g kg^?1 inosine supplemented diets showed the least oxidative stress condition. Inosine supplementation significantly increased (p < .05) anterior enterocyte height and posterior fold height, enterocyte height and microvillus height compared with control. We concluded that 4 g kg^?1 dietary inosine supplementation effectively provokes growth and health performance of red sea bream by increasing growth, immune response, oxidative stress resistance and intestinal health condition.  相似文献   

Availability of environmental and dietary calcium in tiger puffer   总被引：1，自引：0，他引：1  

M. Amzad Hossain  Masayuki Furuichi 《Aquaculture International》1998,6(2):121-132

Tiger puffer, Takifugu rubripes, juveniles were fed with four semi-purified experimental diets containing 0.2% Ca from Ca-lactate (diet 1), no supplemental Ca (diet 2) and 0.2% and 2.5% Ca from tricalcium phosphate, TCP (diets 3 and 4), respectively. After a 10 week rearing period, growth and feed utilization were significantly lower in the fish group fed on diet 2 than in the fish group fed on diet 1. Fish groups fed on diets 3 and 4 also showed poor growth performances compared with group 1. It appears that Ca intake from seawater is not sufficient for the normal growth of tiger puffer. Furthermore, Ca in dietary TCP appeared to be unavailable to this species. Dietary TCP strongly inhibited the bone mineralization of Zn and Mn. The findings indicate that easily digestible Ca supplementation is indispensable in a diet of tiger puffer for normal growth, feed utilization and bone mineralization. © Rapid Science Ltd. 1998  相似文献   

Effects of dietary astaxanthin and vitamin E and their interactions on the growth performance,pigmentation, digestive enzyme activity of kuruma shrimp (Marsupenaeus japonicus)     

Weilong Wang  Manabu Ishikawa  Shunsuke Koshio  Saichiro Yokoyama  Mahmoud A. O. Dawood  Md. Sakhawat Hossain  Amina S. Moss 《Aquaculture Research》2019,50(4):1186-1197

A 56‐day feeding trial was done to investigate the interactive effects of astaxanthin (Ax) and vitamin E (α‐Toc) on the performance of kuruma shrimp (Marsupenaeus japonicus). A 2 × 3 factorial experiment was conducted with six experimental diets containing two levels of Ax (0 and 0.6 g/kg diet [Ax₀ and Ax_0.6]) and three levels of α‐Toc (0, 0.2 and 1 g/kg diet [α‐Toc₀, α‐Toc_0.2 and α‐Toc₁]). The results indicated that growth performance was significantly (p < 0.05) increased in shrimp fed with the Ax_0.6 × α‐Toc_0.2 diet. Interactive effects between Ax and α‐Toc on the growth parameters were observed. Furthermore, pigmentation performance was significantly (p < 0.05) better in the Ax_0.6 groups. Interaction between Ax and α‐Toc was also found in the Ax content of shrimp body parts. Interestingly, dietary α‐Toc helped to reduce the Ax consumption rate, promote the absorption and increase the deposition of Ax in the muscle. Shrimps from the Ax_0.6 groups showed significantly (p < 0.05) improved hepatopancreatic digestive enzyme activities compared with those of the Ax₀ groups. Although no interactive (p > 0.05) effects were found between dietary α‐Toc and Ax on total haemocyte count and tolerance against freshwater, dietary Ax and α‐Toc supplementation showed better performance on these two parameters. It was concluded that dietary Ax and α‐Toc functioned synergistically, and the shrimp fed with the diet containing 0.6 g Ax/kg diet Ax and 0.2 g α‐Toc/kg diet showed improved growth and pigmentation performance compared with the other groups in the current study.  相似文献   

A review on South Asian wheat blast: The present status and future perspective     

Nabila Yesmin  Farhana Jenny  Hasan M. Abdullah  Motaher M. Hossain  Md A. Kader  Peter S. Solomon  Md A. H. B. Bhuiyan 《Plant pathology》2020,69(9):1618-1629

The outbreak of wheat blast (Pyricularia oryzae, syn. Magnaporthe oryzae) in Bangladesh and India in recent times is a cause of grave concern for future wheat production in South Asian countries. In this review, we focus on the origin and pathology of P. oryzae and its current status and impact on trade of wheat in South Asia. We also consider future directions for efficient detection, monitoring, forecasting, and managing this destructive disease. Proper detection and monitoring are essential for imposing disease management strategies. Cutting-edge tools such as geospatial modelling and remote sensing technologies based on field observation will be pivotal to efficiently contain and manage the disease. Strong quarantine regulations too are critical in preventing the pathogen movement and are also discussed within. Complementary approaches, such as the induction of systemic resistance by applying plant growth-promoting rhizobacteria or probiotic bacteria, are also considered here. This review provides a comprehensive summary on the status of wheat blast in South-East Asia and will provide an important resource for wheat blast research in the affected areas.  相似文献   

Traditional utilization of wild date palm （Phoenix sylvestris） in rural Bangladesh： an approach to sustainable biodiversity management     

Mohammad Shaheed Hossain Chowdhury Md. Abdul Halim Nur Muhammed Farhana Haque Masao Koike 《林业研究》2008,19(3)

  相似文献   

Essentiality of dietary calcium supplement in redlip mullet Liza haematocheila     

Hossain  & Furuichi 《Aquaculture Nutrition》2000,6(1):33-38

This study was conducted to determine the essentiality of dietary calcium supplement to redlip mullet Liza haematocheila . Juvenile fish were fed four purified experimental diets containing 2.0 g kg^–1 Ca from calcium lactate (diet 1), no supplemental Ca (diet 2), and 2.0 g and 25.0 g kg^–1 Ca from tricalcium phosphate (TCP, diets 3 and 4), respectively. At the end of the 10-week experiment, growth was significantly lower in fish fed diet 2 than fish fed all other diets. This suggests that redlip mullet do not obtain adequate Ca from sea water. Fish fed diets 3 and 4 showed growth performances similar to fish fed diet 1. However, dietary TCP negatively affected bone mineralization of Zn, Mn, K and Fe. The Ca, Zn and Fe levels in liver were low in fish fed TCP-supplemented diets. From these findings, it may be concluded that a dietary Ca supplement is necessary for redlip mullet. Although this species can use dietary TCP as a Ca source for growth, an easily digestible Ca (monobasic or dibasic) supplement to a TCP-rich diet is also essential to maintain normal mineral levels in tissues.  相似文献