MARC details
| 000 -LEADER |
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| fixed length control field |
04763nab a22004817a 4500 |
| 001 - CONTROL NUMBER |
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| control field |
39649 |
| 003 - CONTROL NUMBER IDENTIFIER |
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| control field |
CO-PlCIA |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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| control field |
20130510171013.0 |
| 040 ## - CATALOGING SOURCE |
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| Original cataloging agency |
CO-PlCIA |
| Transcribing agency |
CO-PlCIA |
| 041 ## - LANGUAGE CODE |
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| Language code of text/sound track or separate title |
por |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
120504t1998 000 0spor d |
| 100 ## - MAIN ENTRY--PERSONAL NAME |
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| Personal name |
Leite, Gilberto Gonçalves |
| 245 ## - TITLE STATEMENT |
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| Title |
Expansao e senescência de folhas de gramíneas nativas dos Cerrados submetidas à queima |
| 300 ## - PHYSICAL DESCRIPTION |
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| Extent |
20(3):16-21 |
| 520 ## - SUMMARY, ETC. |
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| Summary, etc |
En áreas de Plintossol Pétrico, Latossol Vermelho Amarelo y Latossol Vermelho Escuro de Hacienda Agua Limpia de la Universidad de Brasilia (Brasil) se estudiaron la dinámica del tejido vivo, el crecimiento y la senescencia de tejido vivo de gramíneas, nativas [Echynolaena inflexa (Poiret) Chase, Trachypogon filifolius (Hach) Hitchc., Schyzachyrium tenerum Nees y Axonopus barbigerus (Kunth) Hitchc] sometidas a quema anual y cada 2 años. Para el efecto, en pasturas nativas se marcaron aleatoriamente cinco plantas sin señales de senescencia de cada especie. Cada 4 semanas se midieron el crecimiento, la porción viva verde y la porción senescente. Los resultados se analizaron por regresión y por la prueba de 'F'. La mayor expansión foliar y de tejido vivo se presentó en Plintossol Pétrico en la época de verano, pero disminuyó al final de la época de lluvias. Axonopus barbigerus presentó la mayor cantidad de tejido vivo, no obstante, también presentó la mayor proporción de tejido senescente conjuntamente con T. filifolius, Echynolaena inflexa y S. tenerum presentaron la menor proporción de tejido senescente. En el Latossol Vermelho Amarelo, el comportamiento de las especies fue similar al comportamiento en Plintossol Pétrico. La cantidad de tejido vivo de las especies se relacionó con la distribución de la precipitación en la región. El crecimiento foliar de las especies, independientemente de la frecuencia de quema y del tipo de suelo, ocurrió con mayor intensidad en la época de verano, mientras que la senescencia aumentó al final de la época de lluvias y con ]a reducción de la temperatura al inicio de la época de lluvias. |
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spa |
| 520 ## - SUMMARY, ETC. |
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| Summary, etc |
A study was carried out at the Agua Limpa Experimental Farm, located in the savannas of Brazil's Federal District, to study the effects of annual and biannual burning on different characteristics of the native grass species Echynolaena inflexa (Poiret) Chase, Trachypogon filifolius Hach) Hitchc., Schyzachyrium tenerum Nees, and Axonopus barbigerus (Kunth) Hitchc. Characteristics studied were the dynamics of green tissue, expansion and senescence of lamina leaves. The study area included a Petric Plintsoil, a yellow-red Latosol, and a dark yellow-red Latosol. For each soil type, five plants that did not show signs of senescence were randomly selected for each species. Measurements of leaf extension and proportion of green and dead leafs were made at 4-week intervals. Regression and multivariate analyses were used to compare the proportion of live and dead tissue among the different species and soil types. The results show that leaf blade elongation of species increased during the wet summer months and decreased during the dry winter ones. This sequence followed the precipitation curve, regardless of soil type or frequency of burning. Leaf blade senescence increased with decreasing precipitation and temperature. The quantity of green tissue followed the precipitation curve for the region. Axonopus barbigerus and T. filifolius presented greater leaf elongation and lower leaf senescence in all soil types. Echynolaena inflexa and S. tenerum presented lower leaf blade elongation and senescence, regardless of soil type or frequency of burning, suggesting that management strategies should be used to preserve or increase these two grass species in native pastures in the savanna region. |
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eng |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Natural pastures |
| 9 (RLIN) |
eng |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Burning |
| 9 (RLIN) |
eng |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Leaves |
| 9 (RLIN) |
eng |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Brazil |
| 9 (RLIN) |
eng |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Pastizal natural |
| 9 (RLIN) |
spa |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Quema |
| 9 (RLIN) |
spa |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Hojas |
| 9 (RLIN) |
spa |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Brasil |
| 9 (RLIN) |
spa |
| 653 ## - INDEX TERM--UNCONTROLLED |
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| Uncontrolled term |
Documentos electrónicos |
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spa |
| 653 ## - INDEX TERM--UNCONTROLLED |
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| Uncontrolled term |
Electronic documents |
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spa |
| 653 ## - INDEX TERM--UNCONTROLLED |
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| Uncontrolled term |
Forage |
| -- |
spa |
| 653 ## - INDEX TERM--UNCONTROLLED |
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| Uncontrolled term |
CIAT Externos |
| -- |
spa |
| 653 ## - INDEX TERM--UNCONTROLLED |
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| Uncontrolled term |
Forrajes |
| -- |
spa |
| 653 ## - INDEX TERM--UNCONTROLLED |
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| Uncontrolled term |
Journal articles |
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spa |
| 653 ## - INDEX TERM--UNCONTROLLED |
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| Uncontrolled term |
Artículos en revistas |
| -- |
spa |
| 653 ## - INDEX TERM--UNCONTROLLED |
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| Uncontrolled term |
Preparación del suelo |
| -- |
spa |
| 653 ## - INDEX TERM--UNCONTROLLED |
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| Uncontrolled term |
Soil cultivation |
| -- |
eng |
| 653 ## - INDEX TERM--UNCONTROLLED |
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| Uncontrolled term |
Journal article |
| -- |
eng |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Gomes, Antônio Carlos |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Neto, Remidijo Tomazini |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Neto, C.R.B. |
| 773 ## - HOST ITEM ENTRY |
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| Title |
Pasturas Tropicales (CIAT) |
| Place, publisher, and date of publication |
1998 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS |
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| Uniform Resource Identifier |
<a href="http://ciat-library.ciat.cgiar.org/Articulos_Ciat/PAST2033.pdf">http://ciat-library.ciat.cgiar.org/Articulos_Ciat/PAST2033.pdf</a> |
| 998 ## - Data Base |
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| DataBase |
CATAL |
| 998 ## - Data Base |
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| DataBase |
PASTOS |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
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| Source of classification or shelving scheme |
Library of Congress Classification |
| Koha item type |
Journal Article |