Proline content of sunflower cultivars in the Brazilian semiarid region

Authors

  • Luciana Marques de Carvalho Embrapa Tabuleiros Costeiros, Avenida Beira Mar, nº 3.250, CEP 49025-480 Aracaju, SE.
  • Stela Braga de Araújo Embrapa Tabuleiros Costeiros, Avenida Beira Mar, nº 3.250, CEP 49025-480 Aracaju, SE.
  • Hélio Wilson Lemos de Carvalho Embrapa Tabuleiros Costeiros, Avenida Beira Mar, nº 3.250, CEP 49025-480 Aracaju, SE.
  • Claudio Guilherme Portela de Carvalho Embrapa Soja, Caixa Postal 231, CEP 86001-970 Londrina, PR.

DOI:

https://doi.org/10.1590/S1678-3921.pab2018.v53.26130

Keywords:

Helianthus annuus, drought, water deficit

Abstract

The objective of this work was to evaluate the proline content of sunflower (Helianthus annuus) cultivars, in the conditions of natural water deficit in the Brazilian semiarid region. Thirteen cultivars were sown in experiments set in three sites in the Brazilian Northeast. Proline content was determined on leaves from plants at the R4–R5 stage. Significant differences among cultivars occurred only where water availability was lower. Proline averages ranged from 3.47 to 17.41 µg g-1. The sunflower cultivars BRS387, BRS323, and BRS324 showed the greatest proline contents with 54.74, 46.27, and 35.16 µg g-1, respectively. These are the cultivars that accumulate more proline under conditions of a severe water deficit.

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Published

2018-10-19

How to Cite

Carvalho, L. M. de, Araújo, S. B. de, Carvalho, H. W. L. de, & Carvalho, C. G. P. de. (2018). Proline content of sunflower cultivars in the Brazilian semiarid region. Pesquisa Agropecuaria Brasileira, 53(8), 970–973. https://doi.org/10.1590/S1678-3921.pab2018.v53.26130

Issue

v.53, n.8, ago. 2018

Section

SCIENTIFIC NOTES