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1.
This paper reviews the radiological features of 50 canine incisive or maxillary tumours and discusses the value of radiological assessment in the diagnosis and staging of these tumours. The 50 tumours examined included 21 sarcomas, 15 carcinomas, three melanomas and an assortment of benign tumours of the oral cavity. There was not any site specificity for the different histological tumour types within the upper dental arcade, although fibrosarcomas had a tendency to be maxillary whereas the squamous cell carcinomas were equally distributed between the incisive and maxillary regions. Seventy-eight per cent of fibrosarcomas, 82 per cent of squamous cell carcinoma and all three melanomas examined showed radiological evidence of bone involvement. Radiographic changes were also seen in the benign tumours. The pattern of growth of tumours correlated with the radiological changes observed. Malignant tumours showed a tendency to irregular or aggressive bone loss whereas bone production predominated in the benign tumours. 相似文献
2.
Frew Mekbib 《Euphytica》2003,130(2):147-153
An experiment was undertaken to determine the stability of seed yield in 21 common bean genotypes representing three growth
habits. Seven genotypes in each growth habit (determinate bush, indeterminate bush and indeterminate prostrate) were evaluated
in replicated trials at three locations for three years under rain fed conditions in Ethiopia. A combined analysis of variance,
stability statistics and rank correlations among stability statistics and yield-stability statistic were determined. The genotypes
differed significantly for seed yield and genotype × environment (year by location) interaction (GE). The different stability
statistics namely Type1, Type 2 and Type 3 measured the different aspects of stability. This was substantiated by rank correlation
coefficient. There were strong rank correlations among Si
2d, Wi
2,σi
2 and Si
2, where as there was weak correlation between biand Ri
2, Si
2d, Wi
2, σi
2 and Si
2. R2 was significantly and negatively correlated with Wi
2, σi
2 and Si
2. σi
2 is significantly correlated with Wi
2.Yield is significantly correlated with bi and Ri
2.None of the statistics per se was useful for selecting high yielding and stable genotypes except the YS(yield-stability statistic). Most of the high yielding
genotypes were relatively stable. Of the 21 genotypes, only 11genotypes were selected for their high yielding and stable performance.
Genotypes with growth habit III and I (in determinate prostrate and determinate bush) were generally more stable than in determinate
bush.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
3.
Jacquetta Udy Stephen Wing Sorrel O'Connell‐Milne Stina Kolodzey Rebecca McMullin Leonardo Durante Russell Frew 《水产资源保护:海洋与淡水生态系统》2019,29(9):1503-1519
- 相似文献
4.
Ferede Brikti Mekbib Firew Assefa Kebebew Chanyalew Solomon Abraha Eyasu Tadele Zerihun 《Journal of Crop Science and Biotechnology》2020,23(2):107-115
Journal of Crop Science and Biotechnology - A field experiment was conducted to identify drought tolerant, high yielding and stable tef genotypes using drought tolerance indices. Sixty-four tef... 相似文献
5.
Extracts from two plants from Ethiopia,Withania somnifera andAcacia seyal, were evaluated for their potential as natural biopesticides and to study their mode of action. Methanolic extracts of these
plants were testedin vivo on citrus fruit for their efficacy to controlPenicillium digitatum when applied on wounded or unwounded fruit surfaces. Relative to the control, 70% and 75% of wound — inoculated fruit did
not develop decay symptoms for up to 21 days of storage at 25°C and >85% r.h. An increase in cell wall-bound phenolics was
evident in wounded fruit treated with plant extracts and inoculated with a spore suspension ofP. digitatum. Scanning electron microscopy revealed deposition of crystalline plant material sticking to the pathogen and around the wound
site. The application of the plant extracts increased the epiphytic background total microbial population but decreased diversity.
http://www.phytoparasitica.org posting May 7, 2007. 相似文献
6.
7.
Gina Cannarozzi Solomon Chanyalew Kebebew Assefa Abate Bekele Regula Blösch Annett Weichert Dominik Klauser Sonia Plaza-Wüthrich Korinna Esfeld Moritz Jöst Abiel Rindisbacher Habte Jifar Victoria Johnson-Chadwick Ermias Abate Wuyan Wang Rizqah Kamies Negussu Husein Worku Kebede Kidist Tolosa Yazachew Genet Kidu Gebremeskel Brikti Ferede Firew Mekbib Federico Martinelli Hans Christian Pedersen Suhail Rafudeen Shimelis Hussein Muluneh Tamiru Naomi Nakayama Mike Robinson Ian Barker Samuel Zeeman Zerihun Tadele 《Euphytica》2018,214(2):31
Indigenous crops also known as orphan crops are key contributors to food security, which is becoming increasingly vulnerable with the current trend of population growth and climate change. They have the major advantage that they fit well into the general socio-economic and ecological context of developing world agriculture. However, most indigenous crops did not benefit from the Green Revolution, which dramatically increased the yield of major crops such as wheat and rice. Here, we describe the Tef Improvement Project, which employs both conventional- and molecular-breeding techniques to improve tef—an orphan crop important to the food security in the Horn of Africa, a region of the world with recurring devastating famines. We have established an efficient pipeline to bring improved tef lines from the laboratory to the farmers of Ethiopia. Of critical importance to the long-term success of this project is the cooperation among participants in Ethiopia and Switzerland, including donors, policy makers, research institutions, and farmers. Together, European and African scientists have developed a pipeline using breeding and genomic tools to improve the orphan crop tef and bring new cultivars to the farmers in Ethiopia. We highlight a new variety, Tesfa, developed in this pipeline and possessing a novel and desirable combination of traits. Tesfa’s recent approval for release illustrates the success of the project and marks a milestone as it is the first variety (of many in the pipeline) to be released. 相似文献
8.
Fekadu Wondimu Mekbib Firew Lakew Berhane Haussmann Bettina I. G. 《Journal of Crop Science and Biotechnology》2023,26(2):119-133
Journal of Crop Science and Biotechnology - Barley is one of the most important cereal crops cultivated over a wider environment in the diverse agro-ecologies in Ethiopia. Study on genotype by... 相似文献
9.
Schiemann B Gommerman JL Vora K Cachero TG Shulga-Morskaya S Dobles M Frew E Scott ML 《Science (New York, N.Y.)》2001,293(5537):2111-2114
The B cell activating factor BAFF (BlyS/TALL-1/zTNF4) is a tumor necrosis factor (TNF)-related ligand that promotes B cell survival and binds to three receptors (BCMA, TACI, and the recently described BAFF-R). Here we report an absolute requirement for BAFF in normal B cell development. Examination of secondary lymphoid organs from BAFF-deficient mice revealed an almost complete loss of follicular and marginal zone B lymphocytes. In contrast, mice lacking BCMA had normal-appearing B lymphocyte compartments. BAFF therefore plays a crucial role in B cell development and can function through receptors other than BCMA. 相似文献