The Identification Methods of Ploidy in Rice Polyploidy Breeding

doi:10.7668/hbnxb.2008.04.022

Abstract

Abstract: This paper identified the chromosomal ploidy of rice according to the pollen,plant morphology,seed mor-phology and chromosome number.The results showed that the size of plant cells and organs tends to be enlarged with the increase of chromosomal ploidy .It was concluded that the size of pollen in rice has a positive correlation with the chromo-some number and ploidy,while the plant morphology,grain size,availability of awn,grain density,setting percentage and other traits also have some correlation with the chromosomal ploidy.They can be a reference to distinguish the chromoso-mal ploidy of rice.

Key words: Rice, Chromosome, Identification of ploidy

CLC Number:

S511.035.2

DAI Xi-mei, HUANG Qun-ce, JIA Hong-ru, ZHAO Shuai-peng. The Identification Methods of Ploidy in Rice Polyploidy Breeding[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2008, 23(4): 94-96. doi: 10.7668/hbnxb.2008.04.022.

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http://www.hbnxb.net/EN/Y2008/V23/I4/94

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