Common bean seeds quality during storage under treatments with potential repellent of aromatic plants

PACHECO, F.P.; NOBREGA, L.H.P.N.; TONINI, M.; CRUZ-SILVA, C.T.A.

doi:10.1590/1983-084X/15_161

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Artigos • Rev. bras. plantas med. 18 (2) • Apr-Jun 2016 • https://doi.org/10.1590/1983-084X/15_161 copy

Common bean seeds quality during storage under treatments with potential repellent of aromatic plants

Qualidade de sementes de feijão carioca armazenado sob tratamentos com plantas aromáticas de potencial repelente

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

ndustrial chemicals that control pests in stored seed can cause damage to health by residual effects remaining in the grains. Studies of products with potential insecticide and repellent properties are required to decrease post-harvest losses. Thus, the aim of this study was to evaluate the quality and efficiency of seed treatment in beans stored under the following treatments: dried leaves and crushed laurel (Laurus nobilis L.), rosemary (Rosmarinus officinalis L.) and basil (Ocimum basilicum L.), cinnamon powder (Cinnamomum zeylanicum Breyn) and ground cloves (Syzygium aromaticum L.) over eight months. An untreated control and a treatment with diatomaceous earth were used to compare the results. At the beginning and at 30 days, percentages of normal and abnormal seedlings as well as seeds that did not germinate, mass of onehundred seeds, water content and infested seeds were analyzed. At 210 and 240 days, free choice arena and repellency testswere conducted. Treatments did not affect germination, mass of 100 seeds or water content; however, all plants tested showed a repellent effect on the bean weevil.

Keywords
bean weevil; botanical insecticides; free choice arena

Parameters		%
Pure seed		98.45
Crashed seed		0.32
Void grain		0.23
Other species		0.88
Other materials		0.12
Water content		13.5

Treatments
Treatments	0	30	60	90	120	150	180
Control	13.2 a	12.7 a	10.5 a	11.0 a	11.7 a	11.0 a	11.1 a
Rosemary	13.4 a	12.4 a	10.3 a	11.7 a	11.9 a	10.5 a	10.8 a
Cinnamon	13.5 a	12.3 a	10.6 a	11.4 a	12.1 a	10.8 a	10.7 a
Clove	14.0 a	12.7 a	10.8 a	11.3 a	11.6 a	11.6 a	11.0 a
Laurel	13.4 a	12.8 a	10.4 a	11.4 a	11.8 a	11.0 a	10.7 a
Basil	13.3 a	12.3 a	10.8 a	11.3 a	11.5 a	10.8 a	10.7 a
Diatomaceous Earth	13.9 a	12.6 a	10.5 a	11.1 a	11.7 a	11.5 a	10.8 a
Averages	13.5	12.5	10.6	11.3	11.4	11.0	10.8
CV (%)	2.195	1.695	1.844	2.127	4.245	3.487	1.540

Treatments
Treatments	0	30	60	90	120	150	180
Control	94 a	90 a	88 a	91 a	86 a	93 a	91 a
Rosemary	93 a	96 a	95 a	91 a	93 a	86 a	94 a
Cinnamon	93 a	86 a	92 a	95 a	88 a	91 a	94 a
Clove	97 a	90 a	88 a	91 a	92 a	92 a	92 a
Laurel	96 a	90 a	91 a	89 a	94 a	86 a	92 a
Basil	95 a	86 a	89 a	92 a	91 a	93 a	92 a
Diatomaceous Earth	94 a	90 a	90 a	87 a	85 a	85 a	86 a

Treatments
Treatments	0	30	60	90	120	150	180
Control	2 b	5 a	7 a	6 b	9 b	3 a	6 a
Rosemary	3 b	2 a	3 a	5 a	2 a	9 b	2 a
Cinnamon	5 c	7 a	6 a	3 a	6 a	6 b	2 a
Clove	0 a	5 a	8 a	7 b	4 a	5 a	6 a
Laurel	1 a	5 a	7 a	5 a	3 a	8 b	3 a
Basil	3 b	7 a	9 a	4 a	4 a	3 a	5 a
Diatomaceous Earth	3 b	5 a	6 a	11 b	10 b	11 b	8 a

Treatments
Treatments	0	30	60	90	120	150	180
Control	4 a	5 a	5 a	3 a	5 b	4 a	3 a
Rosemary	4 a	2 a	2 a	4 a	5 b	5 a	4 a
Cinnamon	2 a	7 a	2 a	2 a	2 a	3 a	4 a
Clove	3 a	5 a	4 a	2 a	4 a	3 a	2 a
Laurel	3 a	5 a	2 a	6 a	3 a	4 a	5 a
Basil	2 a	7 a	2 a	4 a	5 b	4 a	3 a
Diatomaceous Earth	3 a	5 a	4 a	2 a	9 b	6 b	6 b

	Storage period (days)
Treatments	Infested seed (%)					Number of dead insects		Repelency index
		150	180	210	240	210	240	210	240
Rosemary		0 a	0 a	0 a	0 a	8 a	4 a	0.99	0.57
Cinnamon		0 a	2 a	0 a	0 a	4 a	9 a	0.54	0.92
Clove		0 a	0 a	0 a	0 a	7 a	9 a	0.91	0.87
Laurel		0 a	1 a	1 a	2 a	7 a	7 a	0.88	0.90
Basil		0 a	0 a	0 a	1 a	3 a	10 a	0.61	1.02
Diatomaceous Earth		3 a	1 a	0 a	0 a	19 b	14 b	1.38	1.18
Control		0 a	1 a	2 a	1 a	9 a	9 a	1.00	1.00

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