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Acta Prataculturae Sinica ›› 2018, Vol. 27 ›› Issue (5): 85-96.DOI: 10.11686/cyxb2017241

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Evaluation of the adaptability of triticale genotypes using membership function and GGE-Biplot analysis

LIU Jing1,2, SONG Qian3, TIAN Xin-hui1, DU Wen-hua1*, LIU Han-cheng1   

  1. 1.College of Pratacultural Science, Gansu Agricultural University, Key Laboratory of Grassland Ecosystem, Ministry of Education, Pratacultural Engineering Laboratory of Gansu Province, Lanzhou 730070, China;
    2. College of Ecological Environment and Resource, Qinghai University for Nationalities, Xining 810000, China;
    3.Pingliang Academy of Agricultural Sciences, Pingliang 744000, China
  • Received:2017-05-16 Revised:2017-07-04 Online:2018-05-20 Published:2018-05-20
  • Contact: * E-mail: duwh@gsau.edu.cn

Abstract: In order to screen triticale genotypes and areas potentially suitable for cultivating triticale, hay yield, nutritional value (crude protein, neutral detergent fiber, and acid detergent fiber content), and dry matter digestibility of 4 triticale genotypes (new lines P2 and P4; cultivars Shida No.1 and Zhongsi 1048) at the flowering stage were assessed at six sites (Lintao, Maqu, Xiahe, Hezuo, county of Mati and Kangle in Sunan) in Gansu province from 2014 to 2015. Only Lintao had irrigation, all other sites depended on rainfall. Data were analyzed using ANOVA, membership function and GGE (within genotypes and the interaction between the genotype and environment) biplots. Genotype P2 had the highest hay yield (12.94 t·ha-1) and nutritional value (0.67) and performed well in Lintao and Maqu; P4 obtained higher hay yield (10.90 t·ha-1) and nutritional value (0.5) than that of the controls, Shida No.1 and Zhongsi 1048. Both Shida No.1 and Zhongsi 1048 displayed low productivity or nutritional values at all sites. Highest yields were obtained at Lintao (14.13 t·ha-1) and the highest nutrition value (0.51) at Maqu; Maqu also had high hay yield (14.07 t·ha-1) and nutritional evaluation value (0.50). Yields were generally poor at other sites. This study demonstrated a simple and effective method for evaluating hay yield, nutritional quality and suitable area’s for triticale production and offers a theoretical basis for identification of superior genotypes and extension of triticale production.

Key words: Triticale genotype, stability of hay yield, adaptability, method of membership function, genotype main effects plus genotype×environment interaction biplot analysis