Genetic Performance of Some Main Characters in Backcrossing Generations of Trigeneric Hybrids from Triticum Agropyron Leymus

doi:10.3321/j.issn:1000-7091.1997.01.003

Abstract

Abstract: The progenies were induced from the distant hybrid of Triticum Agropyron Leymus and genetic performance of some main Characters in Backcrossing generations of trigeneric hybrids was studied.The main results of the study are as follows:①It was effective to overcome the sterility of distant cross hybrid(F₁)of trigeneric hybrid by backcross,and the rate of seeds sitting was gradually raised with increase of backcross times.②Genetic phenomenon of extra dwarf parents existed obviously in some B 2F 3 plants.③Many good characters as resistance to stripe rust and powdery mildew,long spike and multiple flower in the Agropyron Leymus Can be transmited to the hybrid progenies. ④Extensive segregation was found in the hybrid progenies and various types can be used as valuable material for wheat hybridizations.

Key words: Triticum, Agropyron, Leymus, Backcrossing generation, Character, Inheritance

CLC Number:

S512.101

Wu Jiping, Xu Gangyuan, Qiu Songying. Genetic Performance of Some Main Characters in Backcrossing Generations of Trigeneric Hybrids from Triticum Agropyron Leymus[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1997, 12(1): 12-16. doi: 10.3321/j.issn:1000-7091.1997.01.003.

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