Genetic variability and correlations of agronomic characters in cowpea (Vigna unguiculata)

被引：0
|
作者：
Lopes, ACD [1 ]
Freire, FR [1 ]
da Silva, RBQ [1 ]
Campos, FL [1 ]
Rocha, MD [1 ]
机构：
[1] ESALQ, BR-13400970 Piracicaba, SP, Brazil
来源：
PESQUISA AGROPECUARIA BRASILEIRA | 2001年 / 36卷 / 03期
关键词：
progeny; selection; genetic variation; yield components; productivity;
D O I：
暂无
中图分类号：
S [农业科学];
学科分类号：
09 ;
摘要：
Cowpea (Vigna unguiculata (L.) Walp) is an important food crop for human population in northeastern Brazil. Studies aiming to increase its yield as well as to improve the grain quality and the insect and diseases resistance are needed. This work aimed to accomplish genetic studies in twenty-eight cowpea advanced lines. The studied lines were chosen after selection for seed color and size and plant viruses resistance. The degree of genetic determination ranged from 4.51% (in pods/peduncle) to 81.74% (in 100-seed weight). The seed yield degree of genetic determination was 34.15%. The highest estimates of genetic gain were 21.73% to 100-seed weight and 19.77% to seed yield. The genotypical correlations were higher than phenotypical and environmental ones. High correlations were found between fruiting branches/plant and seed yield (68.13%) and between agronomic value and seed yield (100%). This result indicates the selection feasibility for most of the studied traits.
引用
收藏
页码：515 / 520
页数：6
相关论文
共 50 条
  • [1] Agronomic performance and genetic variability of cowpea (Vigna unguiculata) Accessions
    Nkoana, D. K.
    Gerrano, Abe Shegro
    Gwata, E. T.
    [J]. LEGUME RESEARCH, 2019, 42 (06) : 757 - 762
  • [2] INHERITANCE OF 3 AGRONOMIC CHARACTERS IN COWPEA (VIGNA-UNGUICULATA-L)
    LELEJI, OI
    [J]. EUPHYTICA, 1975, 24 (02) : 371 - 378
  • [3] HERITABILITY ESTIMATES AND CORRELATIONS OF AGRONOMIC CHARACTERS IN COWPEA (VIGNA-SINENSIS L)
    KHERADNAM, M
    NIKNEJAD, M
    [J]. JOURNAL OF AGRICULTURAL SCIENCE, 1974, 82 (APR): : 207 - 208
  • [4] Genetic control of earliness in cowpea (Vigna unguiculata (L) Walp)
    Owusu, Emmanuel Yaw
    Kusi, Francis
    Kena, Alexander Wireko
    Akromah, Richard
    Attamah, Patrick
    Awuku, Frederick Justice
    Mensah, Gloria
    Lamini, Salim
    Zakaria, Mukhtaru
    [J]. HELIYON, 2022, 8 (07)
  • [5] Genetic diversity in cowpea (Vigna unguiculata) using isozyme electrophoresis
    Reis, CM
    Frederico, AM
    [J]. PROCEEDINGS OF THE INTERNATIONAL SYMPOSIUM ON MOLECULAR MARKERS FOR CHARACTERIZING GENOTYPES AND IDENTIFYING CULTIVARS IN HORTICULTURE, 2001, (546): : 497 - 501
  • [6] Variability, character association and genetic divergence studies in cowpea [Vigna unguiculata (l.) Walp] genotypes
    Oo, Phyu Phyu
    Panchta, Ravish
    Nimbal, Somveer
    Kharor, Neeraj
    Arya, Sataywan
    Arya, Rajesh Kumar
    Langaya, Sonu
    [J]. RANGE MANAGEMENT AND AGROFORESTRY, 2023, 44 (02) : 288 - 297
  • [7] Genetic variability and resistance of cultivars of cowpea [Vigna unguiculata (L.) Walp] to cowpea weevil (Callosobruchus maculatus Fabr.)
    Vila Nova, M. X.
    Leite, N. G. A.
    Houllou, L. M.
    Medeiros, L. V.
    Lira Neto, A. C.
    Hsie, B. S.
    Borges-Paluch, L. R.
    Santos, B. S.
    Araujo, C. S. F.
    Rocha, A. A.
    Costa, A. F.
    [J]. GENETICS AND MOLECULAR RESEARCH, 2014, 13 (01) : 2323 - 2332
  • [8] GENETIC VARIABILITY AND INTER-CHARACTERS ASSOCIATIONS STUDIES IN THE GERMPLASM OF COWPEA [VIGNA UNGUICULATA (L.) WALP] IN FRAGILE CLIMATE OF WESTERN RAJASTHAN, INDIA
    Vir, Om
    Singh, A. K.
    [J]. LEGUME RESEARCH, 2014, 37 (02) : 126 - 132
  • [9] Cowpea (Vigna unguiculata L Walp)
    Ehlers, JD
    Hall, AE
    [J]. FIELD CROPS RESEARCH, 1997, 53 (1-3) : 187 - 204
  • [10] Evaluation of genetic divergence in cowpea (Vigna unguiculata) for major insect pests
    Roy, Sharmila
    Sahay, Gitanjali
    Singh, U. P.
    Soni, Richa
    [J]. INDIAN JOURNAL OF AGRICULTURAL SCIENCES, 2011, 81 (01): : 82 - 85
12345