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  • Công bố khoa học và công nghệ Việt Nam

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Trồng trọt

Trần Văn Quang(1), Nguyễn Thị Trâm, Vũ Bình Hải, Vũ Quốc Đại, Nhâm Xuân Tùng

Triển vọng phát triển lúa lai hai dòng ở các tỉnh Tây Nguyên Việt Nam

The prospects of two-line hybrid rice development at Central highland provinces in Vietnam

Nông nghiệp & Phát triển nông thôn

2012

21

9-14

1859-4581

Central highland provinces have rice area about 200,000 hecta, low yield 4.3 tons/hecta, rice production 1,047,300 tons, on an average per person production is 0.2 tons of paddy per year. One of solution to increase rice yield which is hybrid rice development Results of experiment two-line hybrid rice have high yield and stable at five districts of Gia Lai and Dak Lak provinces. Initial results have detennined two-line hybrid rice varieties TH3-3 and TH3-5 for adapting central highland provinces, they have high yield, such as 9.1 tons/hecta in early spring season and 8.4 tons/hecta in autumn. The Fl seed production season in early spring at Dak Lak province so that sowed female lines from 9-16th February. Results of technical proceduce of cultivation for two-line hybrid rice TH3-5 in Dak Lak have determined that in early spring so that sowing 50 kilograms/hectar and fertilizer quantity 150 N:75 P2O5:112.5 K2O kg/ha, in autumn so that sowing 40 kilograms/hecta and fertilizer quantity 120 N:60 P2O5:90 K2O kg/ha.

TTKHCNQG, CVv201