Sensitivity of Jaragua grass (Hyparrhenia rufa) to gamma radiation.

Sensitivity of Jaragua grass (Hyparrhenia rufa) to gamma radiation.

The sensitivity of seeds and axillary buas ot Jaragua grass(Hyparrhenia rufa) to gamma radiation was evaluated in greenhouse. In the seedtriial, doses from zero to l100 Gy were applied to 500 fertile seeds per dose. TheD50 at 34 days was 600 Gy. For axillary buds, five month old plants with anaverage of four tillers each were irradiated with doses of zero to 90 Gy. Tilleraverage of four tillers each were irradiated with doses of zero to 90 Gy. Tillernummber before irradiation (initial tillers) and 93 days after treatment (final tillers)were n.APA- nngpg nf Rfl rind Qfl Gv were resDonsible for the reduction of 31 and42% in the number of tillers, respectively.

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Bibliographic Details
Main Authors: VALARINI, M. J., MECELIS, N. R., VEASEY, L. A., ALCANTARA, P. B., ALCANTARA, V. de B. G., TULMAN NETO, A.
Other Authors: MARIA JOSÉ VALARINI, INSTITUTO DE ZOOTECNIA. Secao de Agronomia de Plantas Forrageiras; NILZA ROCHA MECELIS, CNPGC; ELIZABETH ANN VEASEY, Instituto de Zootecnia - IZ/ Secao de Agronomia de Plantas Forrageiras; PAULO BARDAUIL ALCÂNTARA, Instituto de Zootecnia - IZ/ Secao de Agronomia de Plantas Forrageiras; VALQUÍRIA DE BEM GOMES ALCÂNTARA, Instituto de Zootecnia - IZ/ Secao de Agronomia de Plantas Forrageiras; AUGUSTRO TUMAN NETO, CENA/USP.
Format: Artigo de periódico biblioteca
Language:English
eng
Published: 1998-06-08
Subjects:Gamma irradiation, Radiosensitivity, Capim Jaraguá, Hyparrhenia Rufa, Radiação, Raio Gama, Semente, seeds,
Online Access:http://www.alice.cnptia.embrapa.br/alice/handle/doc/321413
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