Nutrient Content in Arabica Coffee Cultivars Subjected to Glyphosate Drift

被引：13

作者：

Franca, A. C. ^{[1
]}

Freitas, M. A. M. ^{[2
]}

D'Antonino, L. ^{[3
]}

Fialho, C. M. T. ^{[3
]}

Silva, A. A. ^{[3
]}

Reis, M. R. ^{[4
]}

Ronchi, C. P. ^{[4
]}

机构：

[1] Univ Fed Vales Jequitinhonha & Mucuri, BR-39100000 Diamantina, MG, Brazil

[2] Univ Fed Vicosa DFT UFV, BR-36570000 Vicosa, MG, Brazil

[3] DFT UFV, Vicosa, MG, Brazil

[4] CRP UFV, Vicosa, MG, Brazil

来源：

PLANTA DANINHA | 2010年 / 28卷 / 04期

关键词：

herbicide; Coffea arabica; nutrition; EPSPs; IRON-DEFICIENCY; L; MANGANESE;

D O I：

10.1590/S0100-83582010000400021

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

The effects of glyphosate on the foliar levels of nutrients in three coffee cultivars (Coffea arabica) were evaluated in this work. A factorial (3 x 5) was used in a randomized block design with four replications, with treatments consisting of three coffee varieties: Catucai Amarelo (2 SL), Oeiras (MG-6851) and Topazio (MG-1190) and five glyphosate doses (0, 57.6, 115.2, 230.4 and 460.8 g ha-1). At 45 and 120 DAA, leaves (third pair) from plagiotrophic branches were collected from the medium part of the plants. Glyphosate intoxication symptoms were characterized by chlorosis and leaf narrowing for the three coffee varieties. There was a reduction in foliar levels of N, P, K, Cu and Zn at 45 DAA, and N, K, Mn and Zn at 120 DAA, in coffee plants treated with glyphosate, regardless of the cultivar used. Cultivar Topazio showed the greatest reductions in the foliar levels of Fe and Mn, at 45 DAA and P and Fe, at 120 DAA, when treated with glyphosate.

引用

页码：877 / 885

页数：9

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