Hệ thống quản lý khoa học - Breeding Waxy Maize Hybrid for Fresh Quality: Integration between Domestic and Exotic Germplasm

Tên bài báo:	Breeding Waxy Maize Hybrid for Fresh Quality: Integration between Domestic and Exotic Germplasm (Lượt xem: 374)
Tên tạp chí:	Journal of Scientific and Engineering Research
Tạp chí thuộc:	Tạp chí KH quốc tế (khác)
Chỉ số IF/H:
Năm xuất bản:	2017
Nước xuất bản:	Ấn Độ
Tác giả thuộc Học viện:	GS.TS. Vũ Văn Liết ThS Vũ Thị Bích Hạnh KS. Phạm Quang Tuân KS. Nguyễn Văn Hà Hoàng Thị Thùy ThS Dương Thị Loan
Các tác giả bài báo:	Vu V. Liet1, Vu T.B. Hanh2, Pham Q. Tuan2, Nguyen V. Ha2, Tran T.T. Ha2, Hoang T. Thuy2, Duong T. Loan2, Nguyen V. Viet2, Nguyen T. Duc2, Nguyen T.N. Anh2, Le M. Thao3, Khuat H. Trung4, Tran D. Khanh4
Tóm tắt bài báo:	Waxy maize (Zea mays L. var. certain) hybrid program has been established since 2003 at Vietnam National University of Agriculture (VNUA), began upon collection activity of waxy maize nationwide germplasm. During 2003 to 2012, total 160 accessions of local waxy maize were collected based on the four ecosystem regions includedNorth-West mountain (Lai Chau, Dien Bien and Son La province); North-east mountain (Cao Bang, Bac Kan, Ha Giang, Tuyen Quang, Lang Son and Lao Cai provinces); mountain region of North coastal Central (Quang Tri province) and Highland central (Dac Lak, Gia Lai and Lam Dong provinces).Along with the collected local waxy maize germplasm, the 36 exotic waxy maize germplasm was also imported, exchanged and commercial waxy maize hybrids in Vietnam market. Evaluation of waxy maize germplasm diversity and identified usefultraits like drought tolerance, diseases -resistance, eating quality, especially thinner pericarp thickness, anthocyanin content for utilization and maize database establishment in VNUA. Currently, the mostgrown commercial maize varieties are hybrids. However, some waxy corn varieties derived in themountainous regions of Vietnam, where most ethnic minority people are counties are openpollinated varieties (OPVs). Therefore, the improved OPVs are pivotal properties in these regions. Two local waxy maize varieties wereselected by thefull-sibmethod toenhancepopulationsare Khau li and Xa li luot. The results indicated that the selection method has significantly help to improve the numerous traits of interest of this population such as plant height, yield components and fresh ear yield Khau li which are shown to be higher 0.61 ton/ha and Xa li luot is 0.67 ton/ha via three consecutive cycles. Development of the inbred line for the hybrid breedin gprogram in CRDI was initiate dby use of 43 domestic and 36 exotic germplasm for inbred waxy maize line development. During 2009 to 2016, it has generated and evaluated 1683 of inbred lines on the genetic diversity, eating quality, anthocyanin content, drought tolerance, GCA, SCA base on phenotyping traits and applying molecular breeding. Hybrid waxy maize breeding wassuccessfully generated withfour waxy maize hybrids are VNU16, VNUA 69, MH8 and HUA 601 which revealed high fresh ear yield good eating quality, while a purple waxy maize hybrid is NT141 with high-quality and high anthocyanin content. Five waxy maize hybrids were taken into Vietnam Nation Inspection and Testing Network from 2013; they were shown higher yield and quality to compare with the controlled variety. The integration between the use of domestic and exotic germplasm could be successfully improved the diversity of waxy maize germplasm and hybrid breeding for traits of interest such as high fresh with husk yield and good eating quality
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