Ma. Rebecca C. Laza

Details
    • Identification of QTL for 13delta-carbon in irrigated lowland rice , Annual Society Meeting, Crop Science Society of Japan. Tokyo, Japan
    • Recent Advances on the Development of New Plant Types, Asian Natural Environmental Science Center, Tokyo University, Japan
    • Genetic Control of Carbon Isotope Discrimination in Rice, National Institute of Crop Science, Dept of Rice Research, Rice Cultivation & Physiology.
    • Morpho-physiological Traits of Wet Season Rice in the Tropics, Anhui Academy of Agricultural Sciences, Anhui, Hefei, China
    • Leaf Area Measurements and Sampling Procedures, APPA Division Quality Assurance Workshop
    • Determinants for Increased Grain Yield of Recently Developed Rice in the Tropics, Annual Society Meeting, Crop Science Society of Japan.Mie University, Japan
    • Quantitative Traits Loci for Carbon Isotope Discrimination and Stomatal Density in Lowland Irrigated Rice, Shanghai Institute of Plant Physiology & Ecology, Chinese Academy of Sciences, Shanghai, China
    • Quantitative Trait Loci for Physiological and Yield-related Traits: A Literature Review, National Institute of Crop Science, Dept of Rice Research, Rice Cultivation & Physiology
    • Rice yields decline with higher night temperature from global warming in the Philippines, "National Workshop on Rice Integrated Crop Management?, PhilRice, Muñoz, Nueva Ecija, Philippines.
    • Data Collection and Scoring for Agronomic Traits in Yield Trials, Hybrid Rice Training for Pioneer Hi-Bred Inc., IRRI Training Center, Los Baños, Laguna
    • Effect of Panicle Size on Grain Yield of Rice Crop in the Wet Season, Annual Society Meeting, Crop Science Society of Japan, Mie, Japan
    • Growth and Energy Balance of Rice Canopy Grown in Temperature-controlled Conditions, 6th Scientific Meeting, Federation of Crop Science Societies of the Philippines
    • Integrated Nitrogen Management, "Rice: Research to Production" Training Course, IRRI Training Center, Los Baños
    • Wet Season-adapted Cultivars, Training of Trainers for the Rice Self-sufficiency Plan, IRRI and PhilRice
    • "Distillation Workshop on Rice Pre-production and Crop Establishment (Transplanted Irrigated Lowland)", , PhilRice
    • "Intensive rice production: Do's and Don't's, Training of Trainers for Palay Check, IRRI and PhilRice
    • "Intensive rice production: Do's and Don't's, Training of Trainers for the Rice Self-sufficiency Plan, IRRI and PhilRice
    • "Rice: Research to Production" "Crop Physiology of Rice and Crop Management"., Training Course (3rd offering) , IRRI Training Center, Los Baños,
    • "High night temperature: a hidden stress for rice crop" , National Institute for Agro-Environmental Sciences, Tsukuba, Japan

Sex: Female

Education:

  • The University of Tokyo, Bunkyo-ku, Tokyo, Japan, Doctor of Philosophy in Agricultural & Environmental Biology (Crop Eco-physiology), 1998-2003
  • University of the Philippines Los Baños, College, Laguna 4031, Master Science in Agronomy major in Weed Science (minor in Crop Production and Management), 1980-1985
  • University of the Philippines Los Baños, College, Laguna 4031, Bachelor of Science in Agriculture major in Agronomy (Weed Science), 1974-1979

Field of Specialization:

Crop (Rice) Physiology

Researches:

Laza, Ma.R.C., Yamagishi, J., Miyamoto, S. and Hirotsu, S., (2004) QTLs for branching, floret formation, and pre-flowering floret abortion of rice panicle in a temperate japonica x tropical japonica cross
Theoretical & Applied Genetics Volume 109

Laza, Ma.R.C., Peng, S., Garcia, F.V., Gines, H.C., Samson, M.I., Sanico, A.L., Visperas, R.M. and Cassman, K.G. , (1996) Nitrogen use efficiency of irrigated tropical rice established by broadcast wet-seeding and transplanting.
Fertilizer Research Volume 45, No. 2

Laza, Ma.R.C., Peng, S., Khush, G.S., Sanico, A.L., Visperas, R.M. and Garcia, F.V. , (1998) Transpiration efficiencies of indica and improved tropical japonica rice grown under irrigated conditions.
Euphytica Volume 103

Laza, Ma.R.C., Peng, S., Visperas, R.M., Sanico, A.L., Cassman, K.G. and Khush, G.S., (2000) Grain yield of rice cultivars and lines developed in the Philippines since 1966.
Crop Science Volume 40

Laza, Ma.R.C., Peng, S., Huang, J., Sheehy, J.E., Visperas, R.M., Zhong, X.H., Centeno, G.S., Khush, G.S., Cassman, K.G., (2004) Rice yields decline with higher night temperature from global warming
Proc. National Academy Sciences Volume 101, No. 27

Laza, MaR.C., Peng, S., Akita, S. and Saka, H. , (2004) Effect of panicle size on grain yield of IRRI-released indica rice cultivars in the wet season.
Plant Production Science Volume 7, No. 3

Laza, Ma.R.C., Yang, W.H., Peng, S.B., Visperas, R.M. and Dionisio-Sese, M., (2007) Grain yield and yield attributes of new plant type and hybrid rice
Crop Science Volume 47

Laza, Ma.R.C., Kondo, M., Ideta, O., Barlaan, E. and Imbe, T. , (2006) Identification of quantitative trait loci for δ13C and productivity in irrigated lowland rice
Crop Science Volume 46

Laza, Ma.R.C., Yang, W., Peng, S., Dionisio-Sese, M.L. and Vispera, M. , (2008) Grain filling duration, a crucial determinant of genotypic variation of grain yield in field-grown tropical irrigated rice
Field Crops Research Volume 105

Laza, Ma.R.C., Takai, T., Ohsumi, A., San-oh, Y., Kondo, M., Yamamoto, T., Yano, M., (2009) Detection of a quantitative trait locus controlling carbon isotope discrimination and its contribution to stomatal conductance in japonica rice
Theoretical Applied Genetics Volume 118

Peng S, Laza RC, Visperas RM, Khush GS, Virk P, (2005) Progress in breeding the new plant type for yield improvement: A physiological view
In Toriyama K, Heong KL, and Hardy B (ed) Rice is Life: Scientific Perspectives for the 21st Century. Proceedings of the World Rice Research Conference, Tokyo and Tsukuba, Japan

Laza, Ma.R.C., Peng, S., Akita, S. and Saka, H., (2003) Contribution of biomass partitioning and translocation to grain yield under sub-optimum growing conditions in irrigated rice
Plant Production Science Volume 6, No. 1

Laza, Ma.R.C., Peng, S., Sanico, A.L., Garcia, F.V., Visperas, R.M., Descalsota, J.P., and Cassman, K.G. , (1999) Effect of leaf phosphorus and potassium concentration on chlorophyll meter reading in rice plant.
Plant Production Science Volume 2, No. 4

Laza, Ma.R.C., Sanico, A.L., Peng, S. and Visperas, R.M. , (2002) Effect of seedling age and seedlings per hill on snail damage in irrigated rice
Crop Protection Volume 21, No. 2

Laza, Ma.R.C., Peng, S., Garcia, F.V., Sanico, A.L., Visperas, R.M. and Cassman, K.G., (1996) Increased N-use efficiency using a chlorophyll meter on high-yielding irrigated rice
Field Crops Research Volume 47

Laza, Ma. R.C., S. Peng, A.L. Sanico, R.M. Visperas, and S. Akita, (2001) Higher leaf area growth rate contributes to greater vegetative growth of F1 rice hybrids in the tropics.
Plant Production Science Volume 4

Laza, Ma.R.C., Zhang, C. and Peng, S. Peng,, (2003) Senescence of top three leaves in field-grown rice plants
Journal of Plant Nutrition Volume 26, No. 12

Laza, Ma.R.C., Peng, S., Garcia, F.V. and Cassman, K.G., (1995) Chlorophyll meter estimates leaf area-based nitrogen concentration of rice
Soil Science Plant Analysis Commun. Volume 26

Laza, Ma.R.C., Peng, S., Garcia, F.V. and Cassman, K.G. , (1994) Microwave oven drying of rice leaves for rapid determination of dry weight and nitrogen concentration
Journal of Plant Nutrition Volume 17

Laza, Ma.R.C., Bergman, B. and Vergara, B.S. , (1993) Cultivar differences in growth and chloroplast ultrastructure in rice as affected by nitrogen
J. Experimental Botany Volume 44

Laza, Ma.R.C., Peng, S., Garcia, F., and Cassman, K.G. , (1993) Adjustment of specific leaf weight improves chlorophyll meter's estimate of rice leaf nitrogen concentration
Agronomy Journal Volume 85

Laza, Ma.R.C., Parao, F.T. and Akita, S. , (1989) Growth and carbon balance of rice canopy grown in temperature-controlled conditions
Phil. J. Crop Science Volume 14, No. 2

Laza, Ma.R.C., Peng, S., Khush, G., Huang, J., Cassman, K., Visperas, R., (2010) The importance of maintenance breeding: 1 A case study of the first miracle rice variety-IR8.
Field Crops Research

Laza, Ma.R.C., Kondo, M., Ideta, O., Barlaan, E., Imbe, T., (2009) Quantitative trait loci for stomatal density and size in lowland rice.
Euphytica DOI Volume 10, No. 1007 

Papers Presented:

  • Identification of QTL for 13delta-carbon in irrigated lowland rice , Annual Society Meeting, Crop Science Society of Japan. Tokyo, Japan
  • Recent Advances on the Development of New Plant Types, Asian Natural Environmental Science Center, Tokyo University, Japan
  • Genetic Control of Carbon Isotope Discrimination in Rice, National Institute of Crop Science, Dept of Rice Research, Rice Cultivation & Physiology.
  • Morpho-physiological Traits of Wet Season Rice in the Tropics, Anhui Academy of Agricultural Sciences, Anhui, Hefei, China
  • Leaf Area Measurements and Sampling Procedures, APPA Division Quality Assurance Workshop
  • Determinants for Increased Grain Yield of Recently Developed Rice in the Tropics, Annual Society Meeting, Crop Science Society of Japan.Mie University, Japan
  • Quantitative Traits Loci for Carbon Isotope Discrimination and Stomatal Density in Lowland Irrigated Rice, Shanghai Institute of Plant Physiology & Ecology, Chinese Academy of Sciences, Shanghai, China
  • Quantitative Trait Loci for Physiological and Yield-related Traits: A Literature Review, National Institute of Crop Science, Dept of Rice Research, Rice Cultivation & Physiology
  • Rice yields decline with higher night temperature from global warming in the Philippines, "National Workshop on Rice Integrated Crop Management?, PhilRice, Muñoz, Nueva Ecija, Philippines.
  • Data Collection and Scoring for Agronomic Traits in Yield Trials, Hybrid Rice Training for Pioneer Hi-Bred Inc., IRRI Training Center, Los Baños, Laguna
  • Effect of Panicle Size on Grain Yield of Rice Crop in the Wet Season, Annual Society Meeting, Crop Science Society of Japan, Mie, Japan
  • Growth and Energy Balance of Rice Canopy Grown in Temperature-controlled Conditions, 6th Scientific Meeting, Federation of Crop Science Societies of the Philippines
  • Integrated Nitrogen Management, "Rice: Research to Production" Training Course, IRRI Training Center, Los Baños
  • Wet Season-adapted Cultivars, Training of Trainers for the Rice Self-sufficiency Plan, IRRI and PhilRice
  • "Distillation Workshop on Rice Pre-production and Crop Establishment (Transplanted Irrigated Lowland)", , PhilRice
  • "Intensive rice production: Do's and Don't's, Training of Trainers for Palay Check, IRRI and PhilRice
  • "Intensive rice production: Do's and Don't's, Training of Trainers for the Rice Self-sufficiency Plan, IRRI and PhilRice
  • "Rice: Research to Production" "Crop Physiology of Rice and Crop Management"., Training Course (3rd offering) , IRRI Training Center, Los Baños,
  • "High night temperature: a hidden stress for rice crop" , National Institute for Agro-Environmental Sciences, Tsukuba, Japan

Awards: 

  • Guest Scholarship Award, The Swedish Institute, 1990 December-1991 October
  • Best poster (co-author), Crop Science Society of the Philippines,, 1993 May
  • Outstanding Year-round Performance, International Rice Research Institute (Philippines), 1993 December
  • RONPAKU Fellowship Award, Japan Society for Promotion of Science, 1998-2003
  • The CGIAR Science Award for Outstanding Scientific Paper (co-author), Consultative Group on International Agricultural Research, 2005 December 7
  • Long-term Fellowship Award for Research in Japan, Japan Society for Promotion of Science, 2009, June, 15 - November 15
  • Most outstanding papers, Crop Science Journal
  • Postdoctoral Research Fellowship, Japan Society for Promotion of Science, 2004, September - 2006 August