Assessment of Genetic Diversity for Grain Yield and Yield Component Traits in Some Genotypes of Rice (Oryza Sativa L.)     

Asante  Maxwell Darko  Adjah  Kossi Lorimpo  Annan-Afful  Ebenezer 《Journal of Crop Science and Biotechnology》2019,22(2):123-130

Journal of Crop Science and Biotechnology - Even though there are abundant rice genetic resources, only a fraction is used in breeding programs leading to a narrow genetic base for improved...  相似文献   

MALDI‐MS Lipid Profiles of Oocytes Recovered by Ovum Pickup from Bos indicus and 1/2 indicus × taurus with High vs Low Oocyte Yields     

KC Silva‐Santos  CR Ferreira  GMG Santos  MN Eberlin  LS Siloto  CO Rosa  TN Marcantonio  MM Seneda 《Reproduction in domestic animals》2014,49(5):711-718

The aim of the present study was to compare the lipid profile in oocytes of indicus and 1/2 indicus × taurus cows with high and low antral follicle count (AFC)/oocyte yields. After an OPU procedure (D0), antral follicles ≥3 mm were counted by ultrasonography (D4, 19, 34, 49, 64), and cows were assigned to groups with either high AFC (≥30 follicles; indicus, NH group; 1/2 indicus × taurus, AH group) or low AFC (≤15 antral follicles; indicus, NL group; 1/2 indicus × taurus, AL group). The lipid profiles of the oocytes were determined by MALDI‐MS. For GI, GII and GIII oocytes, the indicus samples tend to cluster separately from the 1/2 indicus × taurus samples. The lipid species [PC (P‐38:5) + H]⁺ and/or [PC (P‐36:2) + Na]⁺, [PC (38:2) + H]⁺, [PC (38:5) + Na]⁺ and [TAG (60:8) + NH⁴]⁺ were more abundant in indicus (NH and NL groups) than 1/2 indicus × taurus. The higher lipid content in the indicus oocytes likely reflects differences in the rate of lipid metabolism and may contribute to oocyte competence and embryo development.  相似文献   

The cell and molecular basis of mechanical, cold, and inflammatory pain     

Abrahamsen B  Zhao J  Asante CO  Cendan CM  Marsh S  Martinez-Barbera JP  Nassar MA  Dickenson AH  Wood JN 《Science (New York, N.Y.)》2008,321(5889):702-705

Peripheral pain pathways are activated by a range of stimuli. We used diphtheria toxin to kill all mouse postmitotic sensory neurons expressing the sodium channel Nav1.8. Mice showed normal motor activity and low-threshold mechanical and acute noxious heat responses but did not respond to noxious mechanical pressure or cold. They also showed a loss of enhanced pain responses and spontaneous pain behavior upon treatment with inflammatory insults. In contrast, nerve injury led to heightened pain sensitivity to thermal and mechanical stimuli indistinguishable from that seen with normal littermates. Pain behavior correlates well with central input from sensory neurons measured electrophysiologically in vivo. These data demonstrate that Na(v)1.8-expressing neurons are essential for mechanical, cold, and inflammatory pain but not for neuropathic pain or heat sensing.  相似文献   

Use of a Custom Orthotic Boot for Management of Distal Extremity and Pad Wounds in Three Dogs     

Robert J. Hardie DVM  Diplomate ACVS & ECVS  James T. Lewallen CO 《Veterinary surgery : VS》2013,42(6):678-682

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虾蛋白肽对蛋鸡产蛋性能和蛋品质的影响     

朱碧英  汪依凡  池进军  吕子利 《家畜生态》2008,(6):22-25

研究和探讨了虾加工副产物的酶解产物（Enzymatic Hydrolysis Production,EHP）对蛋鸡产蛋率和蛋品质的影响。以虾加工副产物为原料,应用复合生物酶酶解技术制备EHP,选择产蛋率在80%以上的300日龄笼养褐壳蛋鸡288只,随机分成3组,在基础日粮中分别添加0、1.5g/100g、3g/100g虾加工副产物EHP,并替代相应重量的鱼粉,试验期为60天。EHP,可显著提高鸡蛋的哈夫单位（P〈0.05）,试验组蛋鸡产蛋率平均提高3.14%,料蛋比相应低于对照组。表明虾加工副产物EHP可显著提高产蛋高峰期过后处于衰减期的鸡蛋的哈夫单位及产蛋率。  相似文献   

Stability analysis of yield and aflatoxin accumulation resistance in maize using GGE biplot     

Oppong  Allen  Dadzie  Abu M.  Ifie  Beatrice  Asante  Maxwell D.  Prempeh  Ruth N. A.  Abrokwah  Linda A.  Kubi  Zipporah Appiah  Marfo  Esther A. 《Journal of Crop Science and Biotechnology》2023,26(2):167-178

Journal of Crop Science and Biotechnology - Maize (Zea mays L.) is the most important cereal crop in sub-Saharan Africa. However, its production is constrained by many factors including low yields...  相似文献   

甘蓝型油菜高含油量隐性胞核雄性不育两型系的选育   总被引：2，自引：0，他引：2  

李厚英  陈德珍  陈松  夏海乾  罗光智  余忠刚  苏跃 《中国油料作物学报》2003,25(4):122-124

采用复合回交方法,选育出甘蓝型油菜双低隐性核不育两型系。双低不育系121AB、123AB、175AB、932AB、933AB等表现高含油量、产量高等性状,品质优良。其中175AB、932AB、933AB含油量42．7％～44．0％,蛋白质含量24．2％～25．3％。组配的德油系列优质杂交油菜新组合在比较试验中均比对照种油研七号增产,增产率9．98％～27．34％,表现出较大的增产潜力。  相似文献   

利用¹⁰B示踪法研究栗钙土中硼肥的生物效应(简报)     

王沛芹  马兴旺  彭根元  黄庆文  林英钊 《中国农业大学学报》1992,(2):174-174

硼对植物营养生理的作用,不仅能使植物细胞壁坚韧与木质化,促进与增强植物的抗逆性(抗旱性与抗寒性),而且能促进植物根系发育及糖在体内的运输等。但是有关硼肥营养机理的研究报道较少,尤其是利用~(10)B 示踪研究植物硼肥营养及其在土壤中的转化,更是罕见。为此,我们应用~(10)B 研究了球茎甘蓝在栗钙土上对硼肥的吸收利用,为栗钙土的硼肥使  相似文献   

贵州省盘县菊苣引种试验     

余昌培  秦家秀  党兴静  颜俤 《草业科学》2011,28(9):1632-1635

对将军和普那2个菊苣（Cichorium intybus）品种在贵州盘县3个试验点进行品比试验,分别对物候期、产草量及营养成分等进行观察测定。结果表明,2个菊苣品种在盘县高海拔地区能完成整个生育周期,利用时间长,越冬率和越夏率在75%以上,抗病虫害强;品种将军的产草量高于品种普那,其中鲜草产量比普那高14.99%,干草产量比普那高19.26%;营养价值方面将军表现也优于普那。试验得出,品种将军较适合在贵州盘县地区推广利用。  相似文献   

Graft union formation in mango (Mangifera indica L.)     

A. K. Asante  J. R. Barnett 《The Journal of Horticultural Science and Biotechnology》2013,88(5):781-790

Summary

Graft union formation in mango (Mangifera indica L.) was studied using light microscopy. The initial wound response was resin secretion which contributed mainly to the initial adhesion of the graft partners. Early callus formation occurred mainly from the rootstock with cells produced in definite rows, often in fan-like array. Parenchyma cells at the cortex, pith, xylem and phloem rays were all involved in callus formation. The establishment of the cambial bridge between the stock and scion was followed by the formation of a protective layer, the periderm across the callus edges.  相似文献