Correction to: Genotype by environment interactions and agronomic performance of doubled haploids testcross maize (<Emphasis Type="Italic">Zea mays</Emphasis> L.) hybrids     

Julius Pyton Sserumaga  Sylvester O. Oikeh  Stephen Mugo  Godfrey Asea  Michael Otim  Yoseph Beyene  Grace Abalo  Joseph Kikafunda 《Euphytica》2018,214(11):204

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Rheology of sea buckthorn (Hippophae rhamnoides L.) juice.     

B D Oomah  G Séry  D V Godfrey  T H Beveridge 《Journal of agricultural and food chemistry》1999,47(9):3546-3550

Juice extracted from sea buckthorn fruits was subjected to dynamic rheological measurements in a controlled stress rheometer. Sea buckthorn juice exhibited wide variations in flow behavior from pseudoplastic to dilitant with increasing temperature. The power law model suitably (r >/= 0.975, P相似文献   

Inheritance of yield and yield-related traits in highland maize hybrids of Uganda     

Hellen Ninsiima Kayaga  Frank Kagoda  Mildred Ochwo-Ssemakula  Boris Mahulé Elysé Alladassi  Godfrey Asea  Paul Gibson  Richard Edema 《Journal of Crop Science and Biotechnology》2017,20(4):255-262

Although many studies have been conducted on gene action of grain yield and yield related traits in maize, none of them focused on highland maize in Uganda. This study was conducted to establish the gene action controlling inheritance of yield and its related traits in highland maize hybrids. Thirty-six F₁ hybrids generated from a 9 x 9 half diallel mating design, were planted with two local checks in three highland locations; Kalengyere, Kachwekano, and Buginyanya with two replications using a 2 x 19 alpha (0, 1) lattice design. Results showed that inheritance of ear length and anthesis-silking interval was controlled by both additive and non-additive gene action while the inheritance of days to anthesis, days to silking was mainly controlled by additive gene action. The inheritance of grain yield and other yield related traits was greatly influenced by environment and genotype x environment interaction. Considering the great influence of the environment and genotype x environment interaction on most of the traits including grain yield, further testing in additional locations over more seasons and broadening the genetic base of the parents is encouraged.  相似文献   

Effect of season and location on semen quality and serum concentrations of luteinizing hormone and testosterone in Brahman and Hereford bulls   总被引：1，自引：0，他引：1  

R W Godfrey  D D Lunstra  T G Jenkins  J G Berardinelli  M J Guthrie  D A Neuendorff  C R Long  R D Randel 《Journal of animal science》1990,68(3):734-749

Hereford bulls from Montana (MH; n = 15) and Nebraska (NH; n = 15) and Brahman bulls from Texas (BB; n = 18) were relocated to one of three locations (LOC): Montana (MT), Nebraska (NE) or Texas (TX). All bulls were pubertal at the time of relocation in late May 1984. Semen was collected by electroejaculation within 1 wk after relocation and at 90-d intervals beginning in November 1984 through early February 1986. Bulls were given a GnRH challenge (200 micrograms i.m.) during the same week of semen collections. Bulls also were bled for 8 h at 20-min intervals in the fall of 1984 and the spring and fall of 1985 to determine endogenous concentrations of LH and testosterone. Season affected sperm concentration in all breeds (P less than .05) with decreases during the winter in BB and during the summer in NH and MH bulls. Brahman bulls had lower percentage of live cells (LIVE) than NH and MH bulls did (P less than .0001). Brahman bulls decreased in LIVE during the winter (P less than .001). Area under the LH curve after GnRH was lower (P less than .005) in BB than in MH and NH. Brahman bulls in MT had greater (P less than .02) area under the LH curve and lower (P less than .06) area under the testosterone curve than did BB in TX or NE during the winter. There was no seasonal fluctuation in LH or testosterone response to GnRH in NH or MH bulls at any LOC. Area under the endogenous LH curve was lowest (P less than .04) in BB. Basal endogenous testosterone concentration was greater (P less than .03) in NH than in MH or BB. Area under the endogenous testosterone curve was lower (P less than .03) in MH than in NH or BB. These results indicate that BB exhibit seasonal fluctuations in semen quality. This was not so apparent in semen quality traits of Hereford bulls. There also was a seasonal influence in BB on both endogenous testosterone and GnRH-stimulated LH and testosterone concentrations. Compared with Hereford bulls, Brahman bulls had lower endogenous and GnRH-stimulated concentrations of LH.  相似文献   

HELMINTHIASIS IN YOUNG CALVES     

N. W. Godfrey  M.Agr.Sc. B. A. Forsyth  B.V.Sc. 《Australian veterinary journal》1962,38(12):567-569

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Orthopaedics     

D. R. Godfrey 《The Journal of small animal practice》2002,43(6):260-260

Practice records from November 1994 to April 2000 were searched for cats with a diagnosis of osteoarthritis (OA). Signalment, historical features and findings, treatment and response to treatment were recorded with the aim of planning prospective studies. Thirty-one cases were found. The average age at presentation was 13·8 years (range, nine to 17 years); 67 per cent were female and 33 per cent male. Clinical signs noted included chronic changes of stiff/abnormal gait (12), difficulty/reluctance in jumping (20) and reluctance to move (five). Eleven cases had acute or chronic lameness. Seven of the records indicated that the cat had been overweight. Physical findings included thickened joints (23), pain on joint manipulation (seven) and crepitus (four).Twenty cases had been radiographed. Findings included osteophytes (14), sclerosis (10), periosteal new bone (four) and remodelling (three). Routine blood tests were performed in 15 cats and showed single abnormalities in five cases. Concurrent diseases diagnosed included hyperthyroidism, dental diseases and chronic renal failure. The final diagnosis had been based on the history, examination, diagnostic tests and response to treatment. The joints thought to have been affected by OA were as follows: bilateral elbows (12), bilateral stifles (four), bilateral elbows and stifles (four), unilateral elbow (three), bilateral hips (two), other combinations of joints (six). Seventeen cats had both meloxicam treatment and a follow-up examination (they may have had concurrent treatments). The clinical notes recorded whether the owners considered there to have been an improvement: three showed marked improvement, 11 showed moderate improvement, one showed no improvement, one had an inconclusive response, and side effects stopped treatment in one. One cat showed a marked improvement after treatment with courses of pentosan polysulphate.  相似文献   

Graft-transmissio of male sterility in sugar beet (Beta vulgaris L.)     

Godfrey J Curtis 《Euphytica》1967,16(3):419-424

Cytoplasmic male sterility in sugar beet was successfully transmitted across the union where male sterile and equivalent O-type plants were reciprocally grafted. Two experiments are described. In the first, 30 pairs of developing flowering stems were exchange-grafted between male-sterile and O-type plants. Fifteen O-type scions exhibited full or partial male sterility when grafted to male-sterile stocks and sterility was observed in progeny from these in eleven cases. In flowers from side shoots of O-types grafted with male-sterile scions eight cases exhibited some male sterility and progeny from four of these retained the sterility. In the second experiment O-type seedlings were grafted to male-sterile seedlings and out of the 22 success-fully raised to flowering, male sterility was exhibited in 12 of them. Male sterility occurred among progeny of all 22, even where the sterility could not be detected in the scions. In six cases where the scion appeared fully male-sterile no pollen was produced in any of the progeny.  相似文献   

Managing the hinterland beyond: Two ideal‐type strategies of economic development for small island territories     

Godfrey Baldacchino 《Asia Pacific viewpoint》2006,47(1):45-60

Abstract: Rarely does one come across critical analysis which looks at islands as the strategic and candid promoters of a role as political and economic usufructuaries over external resources. This paper is premised on the proposition that a small territory is especially obliged to use extra‐territorial resources as its hinterland for economic success. Such resources extend over a whole range of goods and services and include access to investment, welfare, security, stable currency, international relations, specialised labour power, transfers, markets and higher education. The MIRAB syndrome is one way of articulating this condition. This paper proposes a second cluster of features that are, or can be, deployed by small territories in a manner somewhat different from MIRAB; this second cluster has a more proactive policy orientation and a disposition towards carving out procedural and jurisdictional powers. It is thus proposed to consider a small territory's engagement with the external hinterland as a position on a sliding scale, a strategic mix of options located between two distinct development trajectories, of which MIRAB is one and the PROFIT model the other.  相似文献   

Effects of fragmentation on artificial nest predation in a tropical forest in Kenya     

Godfrey Gitogo Maina  Wendy M. Jackson 《Biological conservation》2003,111(2):161-169

Nest predation has been established as a leading source of reproductive failure in songbirds. Numerous studies, conducted primarily in the Northern Hemisphere, have linked high rates of nest predation with fragmentation and habitat edges. To date, virtually no such studies have been conducted in Tropical Africa. Here we investigate the effects of disturbance level and edge on depredation of artificial avian nests in six fragments of Kakamega Forest, Kenya. We found that nest losses were higher at the edge than in the interior as often reported in previous studies. Surprisingly, nest predation was highest in the least disturbed fragments. One possible explanation for these findings is that top predators are missing from Kakamega Forest, allowing nest predator populations to increase in all fragments, while in the highly disturbed fragments, domestic dogs might be surrogates for top predators. Alternatively, human activity may itself lead to a decline in mesopredator populations.  相似文献   

The East Asian High‐Tech Drive – Edited by Yun‐Peng Chu and Hal Hill     

Godfrey Yeung 《Growth and change》2007,38(4):723-725

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