Development and characterization of GR2E Golden rice introgression lines oleh B. P. Mallikarjuna Swamy, Severino Marundan, Mercy Samia, Reynante L. Ordonio, Democrito B. Rebong, Ronalyn Miranda, Anielyn Alibuyog, Anna Theresa Rebong, Ma. Angela Tabil, Roel R. Suralta, Antonio A. Alfonso, Partha Sarathi Biswas, Md. Abdul Kader, Russell F. Reinke, Raul Boncodin, Donald J. MacKenzie