Cinética de absorção de amônio e crescimento radicular das cultivares de arroz Agulha e Bico Ganga

Este trabalho teve por objetivo avaliar, em dois estádios de desenvolvimento, o crescimento do sistema radicular e a cinética de absorção de amônio das cultivares de arroz Agulha e Bico Ganga, procedentes do Estado do Maranhão. As plantas (25 e 50 dias de idade) cresceram em casa de vegetação, emsolução nutritiva, com quatro níveis de N (20, 40, 60 e 80 mg L-1). Os valores de Vmáx, K M e Cmín foram determinados empregando-se um processo gráfico-matemático. A cultivar Bico Ganga apre-sentou maiores valores de Vmáx e menores de Cmín, aos 25 e 50 dias de idade, nos níveis de 20 e 40 mg L-1 de N, enquanto em altos níveis de N (60 e 80 mg L-1), os maiores valores de Vmáx e menores de Cmín ocorreram na cultivar Agulha. Tanto aos 25 quanto aos 50 dias, a Bico Ganga apresentou maior área radicular, maior produção de matéria fresca e seca de raiz e parte aérea, e maior eficiência de acumulação de N e síntese de proteína na parte aérea. Esses resultados sugerem que a Bico Ganga, por ser uma cultivar local mais antiga que a Agulha, estaria melhor adaptada ao estresse nutricional em ambientes tropicais.

Efeito de época de semeadura e adubação na mancha-foliar de Phaeosphaeria em milho

O aumento da área de cultivo de milho, aliado a algumas práticas culturais, tem favorecido o surgimento da mancha-foliar causada pelo fungo Phaeosphaeria maydis. Como conseqüência, o rendimento de grãos tem decrescido, especialmente em áreas com plantio direto e maior amplitude da época de semeadura. O trabalho teve como objetivo avaliar a severidade de P. maydis em seis híbridos de milho, em cinco épocas de semeadura e em dois níveis de adubação. O experimento foi conduzido em Xanxerê, SC, na safra 1997/98, em blocos casualizados, com parcelas subdivididas, em duas repetições. As plantas foram avaliadas 30 dias após o florescimento, e a porcentagem da área foliar afetada foi registrada. Na medida em que a semeadura do milho foi retardada, houve um aumento na severidade da moléstia e uma redução no rendimento de grãos. As doses de adubação não apresentaram diferença quanto à severidade da moléstia. O mês de setembro apresentou menor severidade da mancha-foliar e maior rendimento de grãos. Houve uma correlação significativa entre o rendimento de grãos e a severidade da moléstia.

Iowa Militiaman, Fall 2003

The Iowa Militiaman is an unofficial publication authorized under the provisions of AR 360-81. It is published by the 135th Mobile Public Affairs Detachment, Camp Dodge, Johnston, Iowa 50131, and is printed four times annually. The news and opinions expressed in this publication are not necessarily those of the Adjutant General of Iowa, or the Department of the Army.

Iowa Militiaman, Winter 2004

The Iowa Militiaman is an unofficial publication authorized under the provisions of AR 360-81. It is published by the 135th Mobile Public Affairs Detachment, Camp Dodge, Johnston, Iowa 50131, and is printed four times annually. The news and opinions expressed in this publication are not necessarily those of the Adjutant General of Iowa, or the Department of the Army.

Assessment of skinfold thickness equations in estimating body composition in children with inflammatory bowel

Introduction: Growth is a central process in paediatrics. Weight and height evaluation are therefore routine exams for every child but in some situation, particularly inflammatory bowel disease (IBD), a wider evaluation of nutritional status needs to be performed. The assessment of body composition is essential in order to maintain acceptable growth using the following techniques: Dual-energy X-ray absorptiometry (DEXA), bio-impedance-analysis (BIA) and anthropometric measurements (skinfold thickness skin), the latter being most easily available and most cost effective. Objectives: To assess the accuracy of skinfold equations in estimating percentage body fat (%BF) in children with inflammatory bowel disease (IBD), compared with assessment of body fat dual energy X-ray absorptiometry (DEXA). Methods: Twenty-one patients (11 females, 10 males; mean age: 14.3 years, range 12 - 16 years) with IBD (Crohn's disease n = 15, ulcerative colitis n = 6)). Estimated%BF was computed using 6 established equations based on the triceps, biceps, subscapular and suprailiac skinfolds (Deurenberg, Weststrate, Slaughter, Durnin & Rahaman, Johnston, Brook) and compared to DEXA. Concordance analysis was performed using Lin's concordance correlation and the Bland-Altman limits of agreement method. Results: Durnin & Rahaman's equation shows a higher Lin's concordance coefficient with a small difference amongst raw values for skinfolds and DEXA compared to the other equations. Correlation coefficient between mean and difference is close to zero with a non-significant Bradley-Blackwood test. Conclusion: Body composition in paediatric IBD patients using the Durnin & Rahaman skinfold-equation adequately reflects values obtained by DEXA.

Iowa Militiaman, Spring 2006

The Iowa Militiaman is an unofficial publication authorized under the provisions of AR 360-81. It is published by the 135th Mobile Public Affairs Detachment, Camp Dodge, Johnston, Iowa 50131, and is printed four times annually. The news and opinions expressed in this publication are not necessarily those of the Adjutant General of Iowa, or the Department of the Army.

Iowa Militiaman, Summer 2007

The Iowa Militiaman is an unofficial publication authorized under the provisions of AR 360-81. It is published by the 135th Mobile Public Affairs Detachment, Camp Dodge, Johnston, Iowa 50131, and is printed four times annually. The news and opinions expressed in this publication are not necessarily those of the Adjutant General of Iowa, or the Department of the Army.

Iowa Militiaman, Summer 2007

The Iowa Militiaman is an unofficial publication authorized under the provisions of AR 360-81. It is published by the 135th Mobile Public Affairs Detachment, Camp Dodge, Johnston, Iowa 50131, and is printed four times annually. The news and opinions expressed in this publication are not necessarily those of the Adjutant General of Iowa, or the Department of the Army.

Iowa Militiaman, Fall 2008

The Iowa Militiaman is an unofficial publication authorized under the provisions of AR 360-81. It is published by the 135th Mobile Public Affairs Detachment, Camp Dodge, Johnston, Iowa 50131, and is printed four times annually. The news and opinions expressed in this publication are not necessarily those of the Adjutant General of Iowa, or the Department of the Army.

Iowa Militiaman, Summer 2008

The Iowa Militiaman is an unofficial publication authorized under the provisions of AR 360-81. It is published by the 135th Mobile Public Affairs Detachment, Camp Dodge, Johnston, Iowa 50131, and is printed four times annually. The news and opinions expressed in this publication are not necessarily those of the Adjutant General of Iowa, or the Department of the Army.

Iowa Militiaman, Winter 2008

The Iowa Militiaman is an unofficial publication authorized under the provisions of AR 360-81. It is published by the 135th Mobile Public Affairs Detachment, Camp Dodge, Johnston, Iowa 50131, and is printed four times annually. The news and opinions expressed in this publication are not necessarily those of the Adjutant General of Iowa, or the Department of the Army.

Iowa Militiaman, Spring 2009

The Iowa Militiaman is an unofficial publication authorized under the provisions of AR 360-81. It is published by the 135th Mobile Public Affairs Detachment, Camp Dodge, Johnston, Iowa 50131, and is printed four times annually. The news and opinions expressed in this publication are not necessarily those of the Adjutant General of Iowa, or the Department of the Army.

Iowa Militiaman, Summer 2009

The Iowa Militiaman is an unofficial publication authorized under the provisions of AR 360-81. It is published by the 135th Mobile Public Affairs Detachment, Camp Dodge, Johnston, Iowa 50131, and is printed four times annually. The news and opinions expressed in this publication are not necessarily those of the Adjutant General of Iowa, or the Department of the Army.

Iowa Militiaman, Winter 2009

The Iowa Militiaman is an unofficial publication authorized under the provisions of AR 360-81. It is published by the 135th Mobile Public Affairs Detachment, Camp Dodge, Johnston, Iowa 50131, and is printed four times annually. The news and opinions expressed in this publication are not necessarily those of the Adjutant General of Iowa, or the Department of the Army.

Iowa Militiaman, Spring 2010

The Iowa Militiaman is an unofficial publication authorized under the provisions of AR 360-81. It is published by the 135th Mobile Public Affairs Detachment, Camp Dodge, Johnston, Iowa 50131, and is printed four times annually. The news and opinions expressed in this publication are not necessarily those of the Adjutant General of Iowa, or the Department of the Army.