Morphological Biodiversity of the Local Maize Varieties Collected from Lai Chau and Dien Bien Provinces

Received: 22-03-2021

Accepted: 11-06-2021

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Issue: Vol. 19 No. 8 (2021)

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NÔNG HỌC

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Toan, V., Tuong, V., & Hien, V. (2024). Morphological Biodiversity of the Local Maize Varieties Collected from Lai Chau and Dien Bien Provinces. Vietnam Journal of Agricultural Sciences, 19(8), 997–1005. http://testtapchi.vnua.edu.vn/index.php/vjasvn/article/view/870

Morphological Biodiversity of the Local Maize Varieties Collected from Lai Chau and Dien Bien Provinces

Vu Dang Toan (*) 1 , Vu Dang Tuong 1 , Vu ThiThu Hien 2

  • 1 Phòng Khoa học và Hợp tác quốc tế, Trung tâm Tài nguyên thực vật
  • 2 Khoa Nông học, Học viện Nông nghiệp Việt Nam

    • Keywords

    Local corn, genetic diversity, morphological characteristics, genetic relationships

    Abstract


    In Vietnam, local maize varieties are increasingly reduced in the cultivated areas due to the development of hybrid maize varieties. However, local maize genetic resources have numerous precious traits and are of high value in maize breeding. The local maize varieties are still grown in some regions, hence, the collection and evaluation of those varieties should be imperatively carried out for conservation and exploitation. In this study, 30 accessions of indigenous maize varieties were collected from Lai Chau and Dien Bien provinces were characterized for their agro-biological traits. The results showed that 24 accessions (86.7%) were over 120 days in growing period. Plant height ranged from 161.2 to 277.0cm. The length of corn was from 12.7 to 19.4cm. Corndiameter was from 2.87 to 4.93cm. Number of rows per corn was 9.2 to 13.2 rows. Number of seeds in rows was from 13.4 to 34.8. Similarity coefficients of maize varieties were fluctuated from 0.19 to 0.43 and were then classified into two main groups, group one with 6 varieties, and group two with 24 accessions, respectively. High diversity of agro-biological characteristics was found in the maize accessions collected from Lai Chau and Dien Bien provinces. The collected maize accessions could be used for maize breering programs in Vietnam.

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