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2021
Villela, André Luís Gnaccarini; Martinelli, Rodrigo; Zenatti, Thiago Ferreira; Rufino-Jr, Luiz Renato; Monquero, Patricia Andrea; Conceição, Patrícia Marluci; Azevedo, Fernando Alves
Potential of two cover crops, signal grass and ruzi grass: suggested allelopathic effect on some important weeds Journal Article
In: AJCS, vol. 15, iss. 02, pp. 1835-2707, 2021.
Abstract | Links | BibTeX | Tags: cover crops, ecological mowing, integrated weed management, leaf extracts, root exudates, Urochloa
@article{nokey,
title = {Potential of two cover crops, signal grass and ruzi grass: suggested allelopathic effect on some important weeds},
author = {André Luís Gnaccarini Villela and Rodrigo Martinelli and Thiago Ferreira Zenatti and Luiz Renato Rufino-Jr and Patricia Andrea Monquero and Patrícia Marluci Conceição and Fernando Alves Azevedo},
doi = {10.21475/ajcs.21.15.02.p2958},
year = {2021},
date = {2021-01-01},
journal = {AJCS},
volume = {15},
issue = {02},
pages = {1835-2707},
abstract = {There is evidence that signal (SG) and ruzi (RG) grass have an allelopathic effect on weeds. This study aim to evaluate this effects on difficult-to-control weeds: hairy beggarticks (HB), benghal dayflower (BD), horseweed (H), sourgrass (S) and tall windmill grass (TWG). The first experiment was installed in a completely randomized design with 2 donor species (SG and RG) × 4 extract concentrations (0, 75, 150 and 225 mg ml −1) in factorial scheme with four replicates. Weed germination percentage was evaluated in three-day intervals. In the second experiment, the weeds emerged in substrates previously cultivated with SG and RG, in completely randomised block design with four replicates. The emergence, shoot growth and root growth were evaluated. The results were as follows: (i) on horseweed (H), 84% germination inhibition by RG leaf extracts and 38% emergence inhibition by SG root exudates were observed; (ii) on benghal dayflower (BD), 84% germination inhibition by RG leaf extracts and 37% emergence inhibition and 4.3 times the SRL values than control by RG root exudates; (iii) on hairy beggarticks (HB) 52% germination inhibition by RG leaf extracts scored, while SG root exudates reduced 43% of the emergence, 24% shoots biomass accumulation and 11.3% root length; (iv) on sourgrass (S) 71% germination inhibition by both donor plants and 75% germination inhibition by RG leaf extracts were measured. Finally, on tall windmill grass (TWG) 69% germination inhibition was observed upon using both donor plants. It can be concluded that foliar allelochemicals inhibit the germination of: BD > S > TWG > H > HB, while root exudate allelochemicals, inhibit the emergence and root development of all weeds.},
keywords = {cover crops, ecological mowing, integrated weed management, leaf extracts, root exudates, Urochloa},
pubstate = {published},
tppubtype = {article}
}
There is evidence that signal (SG) and ruzi (RG) grass have an allelopathic effect on weeds. This study aim to evaluate this effects on difficult-to-control weeds: hairy beggarticks (HB), benghal dayflower (BD), horseweed (H), sourgrass (S) and tall windmill grass (TWG). The first experiment was installed in a completely randomized design with 2 donor species (SG and RG) × 4 extract concentrations (0, 75, 150 and 225 mg ml −1) in factorial scheme with four replicates. Weed germination percentage was evaluated in three-day intervals. In the second experiment, the weeds emerged in substrates previously cultivated with SG and RG, in completely randomised block design with four replicates. The emergence, shoot growth and root growth were evaluated. The results were as follows: (i) on horseweed (H), 84% germination inhibition by RG leaf extracts and 38% emergence inhibition by SG root exudates were observed; (ii) on benghal dayflower (BD), 84% germination inhibition by RG leaf extracts and 37% emergence inhibition and 4.3 times the SRL values than control by RG root exudates; (iii) on hairy beggarticks (HB) 52% germination inhibition by RG leaf extracts scored, while SG root exudates reduced 43% of the emergence, 24% shoots biomass accumulation and 11.3% root length; (iv) on sourgrass (S) 71% germination inhibition by both donor plants and 75% germination inhibition by RG leaf extracts were measured. Finally, on tall windmill grass (TWG) 69% germination inhibition was observed upon using both donor plants. It can be concluded that foliar allelochemicals inhibit the germination of: BD > S > TWG > H > HB, while root exudate allelochemicals, inhibit the emergence and root development of all weeds.
Villela, André Luís Gnaccarini; Martinelli, Rodrigo; Zenatti, Thiago Ferreira; Rufino-Jr, Luiz Renato; Monquero, Patricia Andrea; Conceição, Patrícia Marluci; Azevedo, Fernando Alves
Potential of two cover crops, signal grass and ruzi grass: suggested allelopathic effect on some important weeds Journal Article
In: AJCS, vol. 15, iss. 02, pp. 1835-2707, 2021.
Abstract | Links | BibTeX | Tags: cover crops, ecological mowing, integrated weed management, leaf extracts, root exudates, Urochloa
@article{nokey,
title = {Potential of two cover crops, signal grass and ruzi grass: suggested allelopathic effect on some important weeds},
author = {André Luís Gnaccarini Villela and Rodrigo Martinelli and Thiago Ferreira Zenatti and Luiz Renato Rufino-Jr and Patricia Andrea Monquero and Patrícia Marluci Conceição and Fernando Alves Azevedo},
doi = {10.21475/ajcs.21.15.02.p2958},
year = {2021},
date = {2021-01-01},
journal = {AJCS},
volume = {15},
issue = {02},
pages = {1835-2707},
abstract = {There is evidence that signal (SG) and ruzi (RG) grass have an allelopathic effect on weeds. This study aim to evaluate this effects on difficult-to-control weeds: hairy beggarticks (HB), benghal dayflower (BD), horseweed (H), sourgrass (S) and tall windmill grass (TWG). The first experiment was installed in a completely randomized design with 2 donor species (SG and RG) × 4 extract concentrations (0, 75, 150 and 225 mg ml −1) in factorial scheme with four replicates. Weed germination percentage was evaluated in three-day intervals. In the second experiment, the weeds emerged in substrates previously cultivated with SG and RG, in completely randomised block design with four replicates. The emergence, shoot growth and root growth were evaluated. The results were as follows: (i) on horseweed (H), 84% germination inhibition by RG leaf extracts and 38% emergence inhibition by SG root exudates were observed; (ii) on benghal dayflower (BD), 84% germination inhibition by RG leaf extracts and 37% emergence inhibition and 4.3 times the SRL values than control by RG root exudates; (iii) on hairy beggarticks (HB) 52% germination inhibition by RG leaf extracts scored, while SG root exudates reduced 43% of the emergence, 24% shoots biomass accumulation and 11.3% root length; (iv) on sourgrass (S) 71% germination inhibition by both donor plants and 75% germination inhibition by RG leaf extracts were measured. Finally, on tall windmill grass (TWG) 69% germination inhibition was observed upon using both donor plants. It can be concluded that foliar allelochemicals inhibit the germination of: BD > S > TWG > H > HB, while root exudate allelochemicals, inhibit the emergence and root development of all weeds.},
keywords = {cover crops, ecological mowing, integrated weed management, leaf extracts, root exudates, Urochloa},
pubstate = {published},
tppubtype = {article}
}
There is evidence that signal (SG) and ruzi (RG) grass have an allelopathic effect on weeds. This study aim to evaluate this effects on difficult-to-control weeds: hairy beggarticks (HB), benghal dayflower (BD), horseweed (H), sourgrass (S) and tall windmill grass (TWG). The first experiment was installed in a completely randomized design with 2 donor species (SG and RG) × 4 extract concentrations (0, 75, 150 and 225 mg ml −1) in factorial scheme with four replicates. Weed germination percentage was evaluated in three-day intervals. In the second experiment, the weeds emerged in substrates previously cultivated with SG and RG, in completely randomised block design with four replicates. The emergence, shoot growth and root growth were evaluated. The results were as follows: (i) on horseweed (H), 84% germination inhibition by RG leaf extracts and 38% emergence inhibition by SG root exudates were observed; (ii) on benghal dayflower (BD), 84% germination inhibition by RG leaf extracts and 37% emergence inhibition and 4.3 times the SRL values than control by RG root exudates; (iii) on hairy beggarticks (HB) 52% germination inhibition by RG leaf extracts scored, while SG root exudates reduced 43% of the emergence, 24% shoots biomass accumulation and 11.3% root length; (iv) on sourgrass (S) 71% germination inhibition by both donor plants and 75% germination inhibition by RG leaf extracts were measured. Finally, on tall windmill grass (TWG) 69% germination inhibition was observed upon using both donor plants. It can be concluded that foliar allelochemicals inhibit the germination of: BD > S > TWG > H > HB, while root exudate allelochemicals, inhibit the emergence and root development of all weeds.