Stability of potato clones resistant to potato virus Y under subtropical conditions

Andrade, Mario Henrique Murad Leite; Patiño-Torres, Albania José; Cavallin, Isabella Cristina; Guedes, Marcio Lisboa; Carvalho, Rafaela Pereira; Gonçalves, Flávia Maria Avelar; Marçal, Tiago de Souza; Pinto, César Augusto Brasil Pereira

doi:10.1590/1984-70332021v21n1a8

Acessibilidade / Reportar erro

Brasil

Crop Breeding and Applied Biotechnology

Español English

Brasil

Español English

sumário « anterior atual seguinte »

Sumário

ARTICLE • Crop Breed. Appl. Biotechnol. 21 (1) • 2021 • https://doi.org/10.1590/1984-70332021v21n1a8 copy

Stability of potato clones resistant to potato virus Y under subtropical conditions

Authorship SCIMAGO INSTITUTIONS RANKINGS

Abstract

Brazilian potato production is based on cultivars originating from the USA and Europe; however, these cultivars were developed under different environmental conditions than those found in Brazil. The aim of this study was to evaluate the adaptability and stability of 18 potato clones (MLG), developed by the Universidade Federal de Lavras, and four cultivars in six environments in the state of Minas Gerais, Brazil. The following traits were evaluated: marketable tuber yield (MTY), specific gravity (SG), and tuber appearance (TA). Clones, environments, and the genotype × environment interaction had significant effects on all traits. The GGE-biplot explained 71.78, 98.13, and 62.86 % of the sum of squares from the G+G×E for MTY, SG, and TA, respectively. Three MLG clones had higher adaptability and stability, as well as better performance, than the cultivars, making them good candidates for release as cultivars.

Keywords:
Genotype × environment; plant breeding; Solanum tuberosum L

Environment	Location^†	Crop season	Altitude (m)	Rainfall^‡ (mm)	Min. (ºC)	Mean (ºC)	Max. (ºC)
E1	LV	Feb/Jun - 2014	919	255	16.4	22.0	28.3
E2	SA	Oct/Dec - 2014	1505	735	15.5	25.9	30.5
E3	LV	May/Sep - 2015	919	120	13.7	18.4	26.2
E4	LM	May/Sep - 2015	887	113	17.2	18.8	33.4
E5	SA	Aug/Dec - 2015	1505	600	17.0	22.3	31.6
E6	BR	Aug/Nov - 2015	1371	570	17.3	22.2	31.0

Mean Squares
Sources of variation	df	TTY^‡	MTY	SG	TA	ST	ED	TS
Block/Environments	12	142368	82422	1.012×10^-4	0.312	0.578*	0.198	0.323
Treatments (Trt)	21	720229**	612509**	9.951×10^-4*	1.439**	6.343**	0.780**	4.654**
MLG	17	406962**	361989**	4.751×10^-4**	0.951**	5.819**	0.390**	2.864**
Checks	3	203575**	491182**	2.702×10^-3**	0.670	9.408**	2.776**	16.268**
MLG vs Checks	1	7595714**	5235338**	4.777×10^-3**	12.040**	6.059**	1.409*	0.240
Environments (Env)	5	2407571**	2276210**	2.411×10^-3**	6.845**	3.308**	3.264**	1.630**
Trt × Env	105	246742**	186035**	6.110×10^-5*	0.572**	0.641**	0.227**	0.510**
MLG × Env	85	262160**	198137**	6.240×10^-5*	0.438**	0.591**	0.240*	0.532**
Checks vs Env	15	65018**	36907	3.320×10^-5	0.650**	0.946**	0.180*	0.398**
MLG vs Checks × Env	5	518511**	398754*	1.180×10^-4	2.666**	0.614	0.157	0.448
Error	252	115943	92109	4.270×10^-5	0.210	0.318	0.149	0.198
Mean of MLG ^† Mean of checks		894.34 a 528.58 b	665.96 a 354.21 b	1.0716 a 1.0624 b	2.89 b 3.35 a	2.80 a 3.12 a	3.44 a 3.59 a	3.43 a 3.31 a

Clone	TTY^‡	MTY	SG	TA	TS	ST	ED	Market^†
G1 - MLG-01.02	920.18 B	779.12 B	1.0648 D	3.00 C	3.25 C	3.27 B	3.20 C	FM
G2 - MLG-01.06	1201.56 A	977.03 A	1.0651 D	3.25 B	3.87 B	2.57 C	3.31 B	-
G3 - MLG-02.12	975.69 B	743.93 B	1.0614 D	2.79 C	3.15 C	2.72 C	3.45 B	-
G4 - MLG-03.03	930.23 B	665.64 B	1.0706 C	3.25 B	3.29 C	3.14 B	3.51 A	FF/FM
G5 - MLG-05.01	759.25 C	559.72 C	1.0688 C	2.58 D	3.31 C	2.98 C	3.37 B	FF
G6 - MLG-11.05	1046.15 A	929.39 A	1.0681 C	3.00 C	3.22 C	1.29 F	3.38 B	FF
G7 - MLG-11.45	729.80 C	602.52 C	1.0747 B	2.71 D	2.83 D	1.75 E	3.27 B	-
G8 - MLG-12.16	964.53 B	768.33 B	1.0723 C	2.96 C	3.11 C	2.79 C	3.68 A	FF
G9 - MLG-14.12	632.31 C	465.48 C	1.0716 C	2.56 D	3.20 C	2.77 C	3.14 C	FF
G10 - MLG-17.48	1024.19 A	716.71 B	1.0710 C	2.62 D	3.74 B	2.87 C	3.44 B	FF
G11 - MLG-17.50	788.98 C	588.24 B	1.0771 B	3.09 B	3.51 B	2.98 C	3.42 B	FF
G12 - MLG-20.01	824.88 B	569.62 C	1.0693 C	2.96 C	2.64 E	3.57 A	3.35 B	-
G13 - MLG-20.12	818.36 B	529.30 C	1.0753 B	2.87 C	3.20 C	2.96 C	3.64 A	FF
G14 - MLG-20.14	884.62 B	574.81 C	1.0786 B	2.51 D	3.85 B	2.70 C	3.50 A	FF
G15 - MLG-20.17	700.18 C	572.45 C	1.0724 C	2.81 C	3.31 C	2.25 D	3.46 B	FF
G16 - MLG-22.23	840.88 B	473.98 C	1.0835 A	2.83 C	3.64 B	3.38 A	3.59 A	FF
G17 - MLG-23.24	900.98 B	637.45 B	1.0710 C	3.18 B	4.35 A	3.42 A	3.61 A	FF/FM
G18 - MLG-23.37	1155.23 A	859.81 A	1.0722 C	2.97 C	3.44 C	2.88 C	3.50 A	FF
G19 - AGATA	551.66 D	280.69 C	1.0518 E	3.38 A	3.54 B	3.60 A	3.78 A	FM
G20 - ASTERIX	422.20 D	196.15 D	1.0681 C	3.08 B	4.35 A	3.14 B	3.88 A	FF/FM
G21 - ATLANTIC	671.22 C	563.14 C	1.0774 B	3.38 A	2.01 F	2.05 D	3.00 C	CH
G22 - CUPIDO	469.21 D	259.21 D	1.0523 E	3.54 A	3.31 C	3.64 A	3.68 A	FM

Crop Breeding and Applied Biotechnology Universidade Federal de Viçosa, Departamento de Fitotecnia, 36570-000 Viçosa - Minas Gerais/Brasil, Tel.: (55 31)3899-2611, Fax: (55 31)3899-2611 - Viçosa - MG - Brazil
E-mail: cbab@ufv.br

Acompanhe os números deste periódico no seu leitor de RSS

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