Agronomic performance of soybean cultivars in an agroforestry system<sup>1</sup>

Werner, Flávia; Balbinot, Alvadi Antonio; Franchini, Julio Cezar; Ferreira, André Sampaio; Silva, Marcelo Augusto de Aguiar e

doi:10.1590/1983-40632016v4745937

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Scientific Articles • Pesqui. Agropecu. Trop. 47 (03) • Jul-Sep 2017 • https://doi.org/10.1590/1983-40632016v4745937 copy

Agronomic performance of soybean cultivars in an agroforestry system¹

Desempenho agronômico de cultivares de soja em sistema agroflorestal

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

Combining forest and crop species into a production system may enhance its sustainability. This study aimed to evaluate the yield components, yield and grain quality of soybean cultivars, in an agroforestry system containing Eucalyptus grandis. A complete randomized block design, in a split-plot arrangement, with three replications, was used. Four soybean cultivars were allocated into the plots (BRS 359 RR, BRS 360 RR, BMX Potência RR and NA 5909 RR). The subplots consisted of five positions between the rows of E. grandis (spaced in 28 m - close to the trees on the east and west sides, intermediate position on the east and west sides and at the center of the row). The yield components and soybean grain yield reduce significantly the closer the plants are seeded to the rows of E. grandis. However, the oil and protein contents in soybean grains are not influenced by the position between rows, regardless of the cultivar. Among all evaluated cultivars, NA 5909 RR presents the best agronomic performance in the agroforestry system containing eucalyptus.

KEYWORDS:
Glycine max L. Merrill; Eucalyptus grandis Hill ex. Maiden; grain quality

Position between tree rowsof Eucalyptus grandis	2014/2015	2015/2016
Position between tree rowsof Eucalyptus grandis	Number of pods plant^-1
Close to the trees on the east	25.9 A¹ 1 Means followed by the same capital letter in the column do not differ by the Scott-Knott test (p ≤ 0.05).	15.0 B
Intermediate on the east	31.1 A	18.0 B
Central	28.4 A	24.9 A
Intermediate on the west	26.3 A	18.8 B
Close to the trees on the west	15.1 B	16.1 B
CV (%)	24.2	24.5
	Number of grains pod^-1
Close to the trees on the east	2.33 A	1.52 B
Intermediate on the east	2.21 A	1.63 B
Central	2.17 A	1.74 A
Intermediate on the west	2.14 A	1.59 B
Close to the trees on the west	2.14 A	1.70 A
CV (%)	10.00	7.60
	1,000-grain mass (g)
Close to the trees on the east	131 B	76 B
Intermediate on the east	132 B	83 B
Central	141 A	100 A
Intermediate on the west	138 A	111 A
Close to the trees on the west	127 B	86 B
CV (%)	6.2	16.3

Cultivar	2014/2015	2015/2016
Cultivar	Number of pods plant^-1
BRS 359 RR	21.8 A¹ 1 Means followed by the same capital letter in the column do not differ by the Scott-Knott test (p ≤ 0.05).	16.5 A
BRS 360 RR	26.8 A	18.2 A
BMX Potência RR	25.5 A	20.3 A
NA 5909 RR	27.3 A	19.1 A
CV (%)	21.6	24.4
	Number of grains pod^-1
BRS 359 RR	2.14 B	1.68 A
BRS 360 RR	2.28 A	1.72 A
BMX Potência RR	2.32 A	1.67 A
NA 5909 RR	2.05 B	1.71 A
CV (%)	7.50	17.30
	1,000-grain mass (g)
BRS 359 RR	147 A	100 A
BRS 360 RR	134 A	86 A
BMX Potência RR	111 B	84 A
NA 5909 RR	143 A	95 A
CV (%)	8.4	21.1

	Position between tree rows of Eucalyptus grandis
Cultivar	Close west	Intermediate west	Central	Intermediate east	Close east
Cultivar	2014/2015
BRS 359 RR	2,561 Aa¹ 1 Means followed by the same letter, lower case in the rows and upper case in the columns, do not differ from each other by the Scott-Knott test (p ≤ 0.05).	2,864 Ba	2,583 Ba	2,948 Aa	1,324 Ab
BRS 360 RR	1,958 Ab	2,846 Ba	2,923 Ba	2,991 Aa	1,422 Ab
BMX Potência RR	1,732 Ab	2,981 Ba	3,416 Aa	2,854 Aa	1,114 Ac
NA 5909 RR	2,152 Ab	3,770 Aa	3,826 Aa	3,455 Aa	1,555 Ac
CV 1 (%)	21.4
CV 2 (%)	12.8
	2015/2016
BRS 359 RR	697 Ac	872 Bc	1,701 Aa	1,334 Bb	987 Ac
BRS 360 RR	621 Ab	1,490 Aa	1,398 Aa	1,338 Ba	678 Ab
BMX Potência RR	318 Ac	1,128 Ba	737 Bb	662 Cb	740 Ab
NA 5909 RR	467 Ad	1,353 Ab	1,024 Bc	1,710 Aa	642 Ad
CV 1 (%)	20.9
CV 2 (%)	21.0

Cultivar	2014/2015	2015/2016
Cultivar	Oil (%)
BRS 359 RR	21.6 A¹	19.1 A
BRS 360 RR	21.9 A	18.8 A
BMX Potência RR	20.9 A	18.4 A
NA 5909 RR	22.3 A	18.9 A
CV (%)	3.8	4.5
	Protein (%)
BRS 359 RR	37.1 A	41.5 A
BRS 360 RR	36.2 B	41.4 A
BMX Potência RR	37.3 A	42.4 A
NA 5909 RR	35.5 B	41.1 A
CV(%)	2.6	2.8

Position between tree rowsof Eucalyptus grandis	2014/2015	2015/2016
Position between tree rowsof Eucalyptus grandis	Oil (%)
Close to the trees on the east	21.5 A¹ 1 Means followed by the same capital letter in the columns do not differ by the Scott-Knott test (p ≤ 0.05).	18.6 A
Intermediate on the east	21.6 A	18.7 A
Central	21.5 A	19.2 A
Intermediate on the west	21.6 A	18.8 A
Close to the trees on the west	21.9 A	18.8 A
CV (%)	4.2	9.8
	Protein (%)
Close to the trees on the east	36.7 A	41.7 A
Intermediate on the east	36.6 A	41.4 A
Central	36.6 A	41.4 A
Intermediate on the west	36.6 A	41.7 A
Close to the trees on the west	36.2 A	41.7 A
CV (%)	2.2	5.6

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Means followed by the same capital letter in the column do not differ by the Scott-Knott test (p ≤ 0.05).

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Agronomic performance of soybean cultivars in an agroforestry system1

Desempenho agronômico de cultivares de soja em sistema agroflorestal

ABSTRACT

Agronomic performance of soybean cultivars in an agroforestry system¹