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Agronomic Performance of Soybean Genotypes in Low Latitude in Teresina-PI, Brazil

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  • Josynaria Neves
  • José Silva
  • Douglas Barbosa
  • Tuneo Sediyama
  • Rita Teixeira
  • Renato Rocha

Abstract

The soybean is one of the most important grain exports. In order to evaluate the agronomic traits and yield components of different soybean genotypes grown under low latitude conditions of Teresina-PI, developed in this research. It were evaluated the phenological and productive traits related to the development of soybean plants of 18 genotypes in the agricultural year 2009/10. Under the conditions studied, the genotypes showed significant differences for all traits analyzed, except plant height at maturity. Plant height at flowering, maturation and first pod showed variations from 42 to 57 cm, 42-63 cm and 6-11 cm, respectively. The genotypes 174 BCR1069X7RG and 169 BCR1069X7RG were considered the most precocious in flowering. In contrast, the genotypes 177 BCR1069X7RG and 176 BCR1069X7RG, with more than 57 days from germination to flowering, were considered the most late. In 1000 grain weight variation was from 15.02 to 20.72 g in values found. The genotypes showed satisfactory yield, especially 171 BCR1069X7RG (4.19 t ha-1) and 174 BCR1069X7RG (3.84 t ha-1) equivalent to 69.80 and 63.97 sacks of 60 kg, respectively. Overall, the genotypes showed good agronomic performance.

Suggested Citation

  • Josynaria Neves & José Silva & Douglas Barbosa & Tuneo Sediyama & Rita Teixeira & Renato Rocha, 2013. "Agronomic Performance of Soybean Genotypes in Low Latitude in Teresina-PI, Brazil," Journal of Agricultural Science, Canadian Center of Science and Education, vol. 5(3), pages 243-243, February.
    • Handle: RePEc:ibn:jasjnl:v:5:y:2013:i:3:p:243
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    JEL classification:

    • R00 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General - - - General
    • Z0 - Other Special Topics - - General

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