UENF MSV2210 and UENF MS2208: Silage and green maize hybrids for Rio de Janeiro State, Brazil

Pereira, Messias Gonzaga; Crevelari, Jocarla Ambrosim; Viana, Flávia Nicácio; Gonçalves, Gabriel Moreno Bernardo; Ferreira Júnior, José Arantes; Gonçalves, Vivane Mirian Lanhellas; Bendia, Laila Cecília Ramos; Azevedo, Flávio Henrique Vidal; Durães, Nayara Norrene Lacerda; Vieira, Ricardo Augusto Mendonça; Viana, Leandro Hespanhol; Rabello, Wanderson Souza

doi:10.1590/1984-70332020v20n3c44

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Crop Breeding and Applied Biotechnology

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CULTIVAR RELEASE • Crop Breed. Appl. Biotechnol. 20 (3) • Jul-Sep 2020 • https://doi.org/10.1590/1984-70332020v20n3c44 copy

UENF MSV2210 and UENF MS2208: Silage and green maize hybrids for Rio de Janeiro State, Brazil

Authorship SCIMAGO INSTITUTIONS RANKINGS

Abstract

This study described the main characteristics of the maize cultivars UENF MSV2210 and UENF MS2208. Adapted to the North and Northwestern regions of the state of Rio de Janeiro, they have a high agronomic performance and were developed for both silage and green maize production.

Keywords:
Zea mays L.; topcross; plant breeding.

	Mean squares
Variation sources	df	EYWS	FMY
Block/Environment	12	8178859.06	56543921.25
Genotype	10	38692014.17**	303782927.84**
Environment	5	77933524.72	155788239.52
Genotype x Environment	50	5719016.92**	41384447.94**
Error	120	2101047.26	18105161.45
Overall mean		12.558	49.270
CV_e		11.54	8.63
$h_{\bar{x}}^{2}$		94.56	94.04

	UENF MSV2210	UENF MS2208	AG 1051	UENF 506-11	CV_e (%)
Environments	Ear yield without straw (kg ha^-1)
Campos dos Goytacazes 2017/2018	15.583ab	13.290ab	12.725ab	14.908ab	13.22
Itaocara 2017/2018	11.625bcd	10.825cd	14.886abc	12.263abcd	11.47
Cambuci 2017/2018	13.963a	16.707a	15.508a	14.625a	10.94
Campos dos Goytacazes 2018/2018	12.225abc	9.455cd	13.333ab	9.384cd	8.96
Itaocara 2018/2018	11.537bc	10.501c	15.236a	11.105bc	10.04
Cambuci 2018/2018	12.508ab	12.314ab	10.997ab	10.128b	12.90
Overall mean	12.906	12.182	13.780	12.068	11.54
Fresh matter yield (kg ha^-1)
Campos dos Goytacazes 2017/2018	56.573abc	60.520a	46.097bc	53.580abc	11.54	9.10
Itaocara 2017/2018	56.992a	57.191a	51.754a	48.925a	6.44
Cambuci 2017/2018	46.138bc	61.417a	44.779bc	44.612bc	8.66
Campos dos Goytacazes 2018/2018	49.308ab	56.229a	49.717ab	44.208b	7.45
Itaocara 2018/2018	48.867abcd	51.667ab	52.492ab	42.891bcd	8.06
Cambuci 2018/2018	54.204ab	58.438a	55.258ab	45.396ab	11.34
Overall mean	52.013	57.577	50.016	46.602	8.63

Traits	UENF MSV2210	UENF MS2208	AG 1051	UENF 506-11
Male flowering	58	61	57	64
Female flowering	61	64	61	64
Plant height (m)	2.79	2.96	2.37	2.25
Ear height (m)	1.74	1.97	1.44	1.56
Mean ear length (cm)	19.04	18.80	19.57	18.66
Mean ear diameter (mm)	47.14	43.38	44.47	44.57
Number of grain rows	12	10	16	12
Grain texture	Dent	Dent	Dent	Semi-dent
Grain color	Medium yellow	Medium yellow	Yellow	Medium yellow
Husk coverage	Compact; tight husk coverage	Compact; tight husk coverage	Compact; tight husk coverage	Compact; tight husk coverage
Disease resistance
Helminthosporium leaf spot	Moderate	Moderate	Moderate	Moderate
Southern corn rust	Moderate	Moderate	Moderate	Moderate

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[1] * E-mail: jcrevelari@yahoo.com.br