Agronomic Characteristics and Chloroplast Morphology of a Pale-green Leaf Line in Rice
2000
Won Yong-Jae | Song Moon-Tae National Crop Experiment Station, RDA, Suwon (Korea Republic)
The leaf color varies with the contents of pigments, especially chlorophylls and carotenoids. Taichung 65(T.65), a japonica rice, with pgl(pale-green leaf) gene exhibits pale green color on the whole plant from seedling to harvest. This study conducted to evaluate the agronomic characters and examine the chloroplasts of 'pgl' plants in parents and BC1F2 of T.65(pgl) xSuweon 345-2. The average grain yield of pale-green-leaf individuals in F2 was the same as T.65(pgl) but that of green-leaf individuals was much higher than that of Suweon 345. The contents of chlorophyll a(Ca), chlorophyll b(Cb) and total chlorophyll content(Ct) of T.65(pgl) in flag leaf were lower than those of Suweon 345, but the Ca/Cb ratio of T.65(pgl) was higher than that of Suweon 345 during from 15 days after heading (DAH) to 60 DAH.
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