Oviposition behavior and foliar consumption of <i>Chrysodeixis includes</i> (Lepidoptera: Noctuidae) in soybean genotypes

Gobbi, Priscilla Costa; Fagundes, João Pedro Robe; Silva, Lucas Raphael da; Motta, Fabrício Barcelos; Cunha, Uemerson Silva da; Duarte, Adriane da Fonseca; Oliveira, Ana Cláudia Barneche de; Rosa, Ana Paula Schneid Afonso da

doi:10.1590/0103-8478cr20220474

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CROP PRODUCTION • Cienc. Rural 54 (2) • 2024 • https://doi.org/10.1590/0103-8478cr20220474 copy

Oviposition behavior and foliar consumption of Chrysodeixis includes (Lepidoptera: Noctuidae) in soybean genotypes

Comportamento de oviposição e consumo foliar de Chrysodeixis includens (Lepidoptera: Noctuidae) em genótipos de soja

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT:

The use of plant resistance acts by intervening in the herbivore-host relationship, through morphological, physical or chemical factors of the plant. This study evaluated the oviposition and foliar consumption of Chrysodeixis includens (Walker [1858]) in soybean genotypes, in free- and no-choice tests, correlating them with the factors, density and size of trichomes. The experiments were carried out in laboratory (25 ± 2 °C; RH= 70 ± 10%; photoperiod 14h) using five cultivars (BRS 391, BRS 6203 RR, BMX Valente RR, Tec Irga 6070 RR, BMX Icone Ipro) and two isolines (PELBR 10-6000 and PELBR 10-6049). The trichomes reported were filiform tectors and claviform multicellular glandular. The density of glandular trichomes, in stages V2 and V5, was higher on BRS 6203 RR and BRS 391, respectively. The higher density of glandular trichomes was observed in V5 and a higher density of tector trichomes in V2. The lowest densities and the smallest sizes of trichomes in V2 and V5 stages was observed on PELBR 10-6049. The size of tector trichomes and the number of eggs did not differ among the cultivars. Foliar consumption was lower for on BMX Icone Ipro and Tec Irga 6070 RR. Trichome density influences the consumption and oviposition behavior of C. includens.

Key words:
Glycine max; Soybean Looper; free-choice; no-choice; antixenosis.

Universidade Federal de Santa Maria Universidade Federal de Santa Maria, Centro de Ciências Rurais , 97105-900 Santa Maria RS Brazil , Tel.: +55 55 3220-8698 , Fax: +55 55 3220-8695 - Santa Maria - RS - Brazil
E-mail: cienciarural@mail.ufsm.br

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[1] Editors: Leandro Souza da Silva (0000-0002-1636-6643) Orcial Bortolotto (0000-0002-3966-4715)

Treatment	--------------------------------------------------------Phenological stages-------------------------------------------------------
	------------------------------V2------------------------------			-------------------------------V5------------------------------
	-------------------------------------------------------Glandular trichomes-------------------------------------------------------
BRS 6203 RR	50.64 ± 3.87	a	A	13.18 ± 1.76	d	B
BMX Valente RR	30.13 ± 2.92	b	^ns	32.18 ± 2.08	b	^ns
Tec Irga 6070 RR	29.05 ± 2.70	b	A	15.57 ± 2.09	cd	B
BRS 391	24.47 ± 2.31	b	B	48.25 ± 2.33	a	A
PELBR10-6000	13.01 ± 1.62	c	B	27.26 ± 1.78	bc	A
BMX Icone Ipro	12.96 ±2.05	c	B	21.63 ± 2.05	c	A
PELBR 10-6049	6.65 ± 0.97	c	B	15.97 ± 1.58	cd	A
	---------------------------------------------------------Tector trichomes---------------------------------------------------------
BRS 6203 RR	30.41 ± 2.79	ab	A	14.76 ± 0.71	b	B
BMX Valente RR	39.71 ± 3.43	a	A	28.08 ± 1.57	a	B
Tec Irga 6070 RR	44.71 ± 5.60	a	A	14.59 ± 0.66	b	B
BRS 391	26.31 ± 2.01	b	^ns	23.94 ± 0.94	a	^ns
PELBR 10-6000	15.41 ± 1.60	cd	B	26.68 ± 1.05	a	A
BMX Icone Ipro	18.48 ± 0.93	c	B	25.75 ± 0.87	a	A
PELBR 10-6049	20.85 ± 1.61	bc	A	12.96 ± 0.69	b	B

Treatment	---------------------------------------------------Phenological stages V5--------------------------------------------------
	Free-choice ^ns	No-choice ^ns
BRS 6203 RR	23.60 ± 3.11	10.40 ± 0.40
Tec Irga 6070 RR	27.60 ± 9.15	22.80 ± 12.80
BMX Valente RR	26.80 ± 4.20	20.00 ± 2.68
PELBR 10-6000	22.40 ± 1.29	10.80 ± 0.49
BRS 391	17.00 ± 2.05	16.00 ± 5.50
BMX Icone Ipro	15.20 ± 1.96	13.20 ± 1.32
PELBR 10-6049	13.20 ± 1.16	10.00 ± 0.00

Treatment	----------------------------V2---------------------------		----------------------------V5----------------------------
	Free-choice	No-choice	Free-choice	No-choice
PELBR 10-6000	1.06 ± 0.19 a	0.60 ± 0.11 ab	1.10 ± 0.19 ab	1.32 ± 0.19 ab
PELBR 10-6049	1.04 ± 0.19 a	0.78 ± 0.11 a	1.07 ± 0.21 ab	0.86 ± 0.15 bc
BRS 391	0.82 ± 0.17 ab	1.06 ± 0.22 a	0.95 ± 0.18 ab	0.66 ± 0.11 bc
BMX Valente RR	0.75 ± 0.17 ab	0.90 ± 0.16 a	0.60 ± 0.14 b	1.80 ± 0.15 a
Tec Irga 6070 RR	0.42 ± 0.15 bc	0.21 ± 0.09 bc	0.68 ± 0.19 b	0.01 ± 0.01 d
BRS 6203 RR	0.24 ± 0.11 c	0.63 ± 0.57 ab	1.46 ± 0.22 a	2.11 ± 0.14 a
BMX Icone Ipro	0.01 ± 0.00 c	0.03 ± 0.01 c	0.01 ± 0.01 c	0.51 ± 0.17 cd


Variables	---------------Phenological stage V2---------------				-------------------------Phenological stage V5------------------------
	----------------------------------------------------------Glandular trichomes--------------------------------------------------------
	rs LE	P	rs SE	P	rs LE	P	rs SE	P
DT x CF	-0.25^*	0.0099	-0.05	0.6181	0.05	0.6363	0.17	0.1176
TT x CF	0.05	0.6192	0.07	0.4894	-0.15	0.1349	-0.01	0.9614
DT x OVI	--	--	--	--	0.16	0.9287	0.36^*	0.0339
TT x OVI	--	--	--	--	-0.20	0.2417	0.27	0.1220
Variables	-----------------------------------------------------------Tector trichomes-----------------------------------------------------------
	rs LE	P	rs SE	p	rs LE	P	rs SE	P
DT x CF	-0.10	0.3075	0.03	0.7384	-0.22^*	0.0236	0.14	0.1891
TT x CF	0.07	0.4558	0.10	0.3268	0.10	0.2960	-0.15	0.1484
DT x OVI	--	--	--	--	0.26	0.1316	0.46^*	0.0056
TT x OVI	--	--	--	--	-0.23	0.1766	-0.30	0.0812