Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2014, Vol. 30 ›› Issue (24): 152-155.doi: 10.11924/j.issn.1000-6850.2014-0095

Special Issue: 小麦

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Genetic Rule of Dwarf Trait in New Waxy Dwarf Wheat 11-805

  

  • Received:2014-01-09 Revised:2014-03-13 Online:2014-08-25 Published:2014-08-25

Abstract: The new waxy dwarf wheat 11- 805 was bred by Mianyang Academy of Agricultural Sciences. In order to study the dwarf genetic rule of 11-805, this test carried out a systematic research on dwarf genetic characteristics in 11-805. 11-805 was hybridized with three taller parents‘Mianmai 37’,‘Mianmai 43’and‘Mianmai 1618’respectively. The results showed that the plant height of Fl was between the taller parent and the mean of parents, and all the D values were negative. It indicated that the plant height of 11- 805 was controlled by recessive genes. The ratio of the dwarf plants, the semi-dwarf plants and the tall plants in three F2 progeny was 1:2:1, and there was over parent segregation in F2 progeny. The results showed that the dwarf character of 11-805 was controlled by a pair of recessive major genes, and affected by some minor genes. The plants height of reciprocal crosses F1 generation decreased 16.07% and 15.67%, which indicated that the dwarf waxy wheat 11-805 had significantly reduced plant height characteristics.