Modeling with Climatic Factors and Analysis on Ecological Characters for Grain Weight Dissected Factors of Two-line Hybrid Rice, Liangyoupeijiu Changes of Photosynthetic Membrane Function and Protein Complexes in Flag Leaves of Liangyoupeijiu during Leaf Senescence Study on antioxidation system in high yield hybrid rice Langyoupeijiu seedlings under dry raising conditions Physiological response of seedling of “Liangyoupeijiu” and its parents to nitrogen nutrient Photosynthetic Function of the Flag Leaf Sheath for Super Hybrid Rice Liangyoupeijiu