Sensitivity of Jaragua grass (Hyparrhenia rufa) to gamma radiation

Authors

  • Maria José Valarini Instituto de Zootecnia, Seção de Agronomia de Plantas Forrageiras, Nova Odessa, SP
  • Nilza Rocha Mecelis Empresa Brasileira de Pesquisa Agropecuária
  • Elizabeth Ann Veasey Instituto de Zootecnia, Seção de Agronomia de Plantas Forrageiras, Nova Odessa, SP
  • Paulo Bardauil Alcntara Instituto de Zootecnia, Seção de Agronomia de Plantas Forrageiras, Nova Odessa, SP
  • Valquíria De Bem Gomes Alcntara Instituto de Zootecnia, Seção de Agronomia de Plantas Forrageiras, Nova Odessa, SP
  • Augusto Tulman Neto Universidade de São Paulo, Centro de Energia Nuclear na Agricultura, Seção de Radiogenética, Piracicaba, SP

Keywords:

gamma radiation, radiosensitivity. Hyparrhenia rufa

Abstract

The sensitivity of seeds and axillary buds of Jaragua grass (Hyparrhenia rufa) to gamma radiation was evaluated in greenhouse. In the seed trial, doses from zero to 1100 Gy were applied to 500 fertile seeds per dose. The LD50 at 34 days was 600 Gy. For axillary buds, five month old plants with an average of four tillers each were irradiated with doses of zero to 90 Gy. Tiller number before irradiation (initial tillers) and 93 days after treatment (final tillers) were recorded. Doses of 80 and 90 Gy were responsible for the reduction of 31 and 42% in the number of tillers, respectively.

Downloads

Download data is not yet available.

Published

2014-01-14

Issue

Section

FORAGE CROPS AND PASTURES

How to Cite

Sensitivity of Jaragua grass (Hyparrhenia rufa) to gamma radiation. (2014). Bulletin of Animal Husbandry, 53, 57-60. http://bia.iz.sp.gov.br/index.php/bia/article/view/992

Most read articles by the same author(s)

1 2 3 4 > >>