Effects of lime application and test branch position on 14C-photosynthate partitioning in 3-year-old Sitka spruce (Picea sitchensis plants growing in pots containing peat soils     

Kakei  M; Clifford  PE 《Forestry》1999,72(3):223-235

  相似文献   

Effect of timing and size of photoperiod change on plasma FSH concentration and the correlation between FSH and age at first egg in pullets.   总被引：3，自引：0，他引：3  

P D Lewis  G C Perry  T R Morris  J A Douthwaite 《British poultry science》1999,40(3):380-384

1. ISA Brown pullets were transferred at 6, 9, 12, 15, 18 or 20.3 weeks of age from an 8 h photoperiod to an 8, 10, 13 or 16 h photoperiod. Plasma follicle stimulating hormone (FSH) concentration was measured at transfer at 7 and 14 d afterwards, and age at first egg (AFE) was recorded. 2. Plasma FSH concentration in pullets reared on constant 8 h photoperiods generally increased with age but with a trough at 12 weeks. Plasma FSH increased during the first 14 d of photostimulation to a significantly higher concentration, compared with constant 8 h controls, when the photoperiod was increased to 13 or 16 h at 9, 12 or 15 weeks; but for the increase from 8 h to 10 h photoperiods FSH was only significantly higher than controls when the change was made at 12 weeks. 3. The change in plasma FSH concentration 14 d after photostimulation was significantly correlated with mean AFE (reported in Lewis et al., 1997) and appears to be a better predictor of gonadal development than concurrent changes in plasma LH concentration previously reported (Lewis et al., 1994).  相似文献   

Identification of Farmer Priorities in Potato Production Through Participatory Variety Selection     

Semagn Asredie Kolech  Donald Halseth  Keith Perry  Walter De Jong  Fentahun Mengistu Tiruneh  David Wolfe 《American Journal of Potato Research》2015,92(6):648-661

  相似文献   

Puccinia psidii in Queensland,Australia: disease symptoms,distribution and impact     

G. S. Pegg  F. R. Giblin  A. R. McTaggart  G. P. Guymer  H. Taylor  K. B. Ireland  R. G. Shivas  S. Perry 《Plant pathology》2014,63(5):1005-1021

Puccinia psidii has long been considered a significant threat to Australian plant industries and ecosystems. In April 2010, P. psidii was detected for the first time in Australia on the central coast of New South Wales (NSW). The fungus spread rapidly along the east coast and in December 2010 was found in Queensland (Qld) followed by Victoria a year later. Puccinia psidii was initially restricted to the southeastern part of Qld but spread as far north as Mossman. In Qld, 48 species of Myrtaceae are considered highly or extremely susceptible to the disease. The impact of P. psidii on individual trees and shrubs has ranged from minor leaf spots, foliage, stem and branch dieback to reduced fecundity. Tree death, as a result of repeated infection, has been recorded for Rhodomyrtus psidioides. Rust infection has also been recorded on flower buds, flowers and fruits of 28 host species. Morphological and molecular characteristics were used to confirm the identification of P. psidii from a range of Myrtaceae in Qld and compared with isolates from NSW and overseas. A reconstructed phylogeny based on the LSU and SSU regions of rDNA did not resolve the familial placement of P. psidii, but indicated that it does not belong to the Pucciniaceae. Uredo rangelii was found to be con‐specific with all isolates of P. psidii in morphology, ITS and LSU sequence data, and host range.  相似文献   

Monoclonal gammopathy without hyperglobulinemia in 2 dogs with IgA secretory neoplasms     

Seelig DM  Perry JA  Avery AC  Avery PR 《Veterinary clinical pathology / American Society for Veterinary Clinical Pathology》2010,39(4):447-453

  相似文献   

Abstracts of papers presented at the Forty-First annual meeting     

Jay L. Haddock  Ray D. Jackson  W. O. Harrington  R. L. Olson  W. J. Weston  Mary L. Belote  W. J. Hooker  A. P. Benson  R. W. Hougas  S. J. Poloquin  R. W. Ross  G. V. C. Houghland  Wm. G. Hoyman  D. R. Isleib  N. R. Thompson  T. Miyamoto  E. J. Wheeler  S. T. Dexter  Hugh J. Murphy  Michael Goven  Alvah L. Perry  G. H. Rieman  D. B. Robinson  R. H. Larson  J. G. Walker  R. L. Sawyer  Lawrence A. Schaal  Clark H. Livingston  Ora Smith  W. L. Smith  Vilhelm Umaerus  L. M. Ware  W. A. Johnson  R. E. Webb  E. S. Schultz  Donald A. Young  L. C. Young 《American Journal of Potato Research》1958,35(3):441-449

  相似文献   

A modified laryngoplasty approach promoting ankylosis of the cricoarytenoid joint     

Parente EJ  Birks EK  Habecker P 《Veterinary surgery : VS》2011,40(2):204-210

Objective: To perform a modification to the standard laryngoplasty procedure in vivo that would result in ankylosis of the cricoarytenoid (CA) joint, and determine the stability provided to the abducted arytenoid in vitro. Study Design: Experimental study. Animals: Horses (n=8). Methods: Horses were assigned to either control laryngoplasty (n=3) or modified laryngoplasty (5) procedure. Endoscopic upper airway evaluations were used to measure right:left quotients 1 day and 3 months postoperatively to assess maintenance of abduction. Horses were euthanatized 3 months after surgery and larynges collected for measurement of translaryngeal impedance and histologic evaluation of CA joint ankylosis. Each specimen was exposed to increasing negative pressure with the sutures intact or cut while translaryngeal impedance was recorded. Data were analyzed using ANOVA with significance set at P<.05. Results: Loss of left arytenoid cartilage abduction at 3 months was greater in the control laryngoplasty group. Overall, impedance was significantly lower for the modified laryngoplasty group compared with the control laryngoplasty group and lower with the sutures intact than cut. Histologic evaluation of the joints confirmed fibrous bridging of the left CA joints of the modified laryngoplasty group. Conclusions: A modified laryngoplasty approach promotes ankylosis of the CA joint and decreases the loss of abduction of the arytenoid.  相似文献   

Sociodemographic, health and lifestyle predictors of poor diets   总被引：1，自引：0，他引：1  

Harrington J  Fitzgerald AP  Layte R  Lutomski J  Molcho M  Perry IJ 《Public health nutrition》2011,14(12):2166-2175

  相似文献   

A potato breeding technique used for Texas     

Bruce A. Perry  Robert V. Akeley Md.  W. B. Cook 《American Journal of Potato Research》1960,37(9):306-307

  相似文献   

Voluntary environmental initiatives: ISO14001 certified organisations in Singapore     

Sanjeev Singh  Martin Perry 《Asia Pacific viewpoint》2000,41(3):269-278

The value of environmental regulation through command and control measures has been questioned because of inflexibility and high cost. Voluntary environmental initiatives have been proposed as an alternative approach to save costs, overcome problems of inadequate enforcement and monitoring and to take advantage of the environmental leadership of transnational corporations (TNCs). Amongst voluntary environmental initiatives certified environmental management system standards have so far had most impact in Singapore and the rest of Southeast Asia. This paper investigates the environmental policy statements of 52 ISO14001 certified organisations in Singapore and shows that the environmental commitments being made are no substitute for traditional environmental regulations.  相似文献