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《》 1989-02
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THE MOPHOLOGICAL OBSERVATJON ON THE DEVELOPING GRAIN OF8x TRITICALE

Hua Zhenji Tao weihai wang jun  
The developing grain .mophology of 8x tritioale consists of th-ree parts: The development of endosperm, the development of the embryo a-nd the development of the pericarp. The whole process of the endosperm development can be divided into 4 phases: The primary endosperm nucleous d?ivision (5-6 hrs after anthesis) ; The multiplication of the free nuclei (6-96 hrs after anthesis) 5 the formation of the endosperm tissue (4-6 days a-fter anthesis) and the mophological establishment of the endosperm (6-30 days after anthesis) .The development of the embryo consists of the divisi-on of the zygote (22-28 hrs after anthesis), the differentiations of embryo (10-19 days after anthesis) and the mophological establishment of organ (19-25 days after anthesis) .The development of pericarp incluoes two p-arts of the developed fruit coats and seed coats.
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