ANNOUNCEMENTS Research results are published in the journal Journal of Advancements in Plant Science.
09/06/2019 NOTIFICATION 311
Selection of elite rice varieties from BCF3:4 population from OM10252/ Pokkali/ / OM10252 for sality tolerance in rice
Nguyen Trong Phuoc1, Nguyen thi Lang1, Bui Huu Thuan2, Bui Chi Buu3
1High Agricultural Technology Research Institute for Mekong delta (HATRI),VietNam
2Mekong University, VietNam
3Institute of Agricultural Science for Southern(IAS), VietNam
Corresponding author E-mail Address: ntlang.prof@gmail.com
Selection of elite rice varieties was on backcross method as well as on the basis of quantitative genetics and interaction of rice varieties evaluated through genetic index in breeding at HATRI. The analysis of hybrid generations of each BCF2, BCF3:4 populations has gained new knowledge and horizons in the number of genes controlling agronomically important traits such as yield and insect disease.A populationwas developed from a cross between OM10252 (high yielding variety and short duration from Cuu Long Delta Rice Research Institute (CLRRI) as female parent and Pokkali as male parent (a donor in many breeding programs and salinity tolerance related studies from Indian). Introgression from Pokkali variety into the hybrid population was recorded with 12,90% recognition for salinity tolerant gene at the survival level of rice plant in salt concentration of EC=8DS/ m and 4,30% of survival rice plant at the concentration of EC=15 dS/ m. Analysis of 100 individuals from the BCF3:4 population of OM10252/ Pokkali/ / OM10252 cross, the height trait, root length, dry weight of stem, dried weight of roots had the positive and high correlation with the survival time of rice plants at EC = 0,8 and 15 dS/ m. This demonstrates the expression of traits affecting closely when analyzing the BCF3:4 population tolerance varieties with various salt concentrations. Through generation, the salt tolerant lines will continue to grow to be evaluated in the field evaluted vegetative and growth stages, and be taken some lines such as: BC3F4-17, BC3F4-18, into breeding programs.
Keywords: Introgression, breeding programs, salt concentrations
Findkeys: backcross method evaluated vegetative and growth stages
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