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将极度矮化的显性矮源矮变１号（携带显性矮秆基因Ｒｈｔ１０）与渝麦４号等小麦常规良种杂交，选育出了株高较矮变１号显著增高的衍生矮源西农０２、西农０４、西农０５。发现由于核遗传背景的改变，衍生矮源西农０２在杂交１代种中对父本株高的致矮能力较矮变１号大为减弱，而与携带Ｒｈｔ３的显性矮源“大姆指矮”衍生而来的“矮苏３”致矮能力相当。采用赤霉酸（ＧＡ３）化学标记、矮秆基因的不等位性测交，以及矮秆基因的染色体定位，确认了西农０２确系携带有Ｒｈｔ１０的矮变１号衍生矮源。指出就致矮能力而论，无论Ｒｈｔ３或Ｒｈｔ１０都适宜用于杂交小麦育种。测定了包括西农０２、矮变１号、矮苏３在内的有关矮源萌发种子α－淀粉酶活性，发现矮变１号衍生矮源的α－淀粉酶活性较矮苏３有高有低，指出只有采用近等基因系法才能对Ｒｈｔ３及Ｒｈｔ１０在杂交小麦育种中基因的多效性作出全面准确的评价。进而对显性矮源在自然界的发现、研究与利用进行了相应的讨论。指出，极度矮化的大姆指矮、矮变１号仅系Ｒｈｔ３，Ｒｈｔ１０在自然界存在的特殊形式，核遗传背景可以大量地调整Ｒｈｔ３，Ｒｈｔ１０的株高表型，因此Ｒｈｔ３，Ｒｈｔ１０不但可以在杂交小麦而且可能在小麦常规育种中得到利?
The dwarf dwarf dominant dwarf Yuan 1 (carrying the dominant dwarfing gene Rht10) and wheat, wheat and other combinations of conventional wheat breeds, dwarfed mutants No. 1 was significantly higher derived dwarfing Westong 02, Westong 04, Westong 05. It was found that due to the change of the nuclear genetic background, the shortening ability of the derived dwarf Xinyong 02 to the male parent was significantly weaker than that of the Dwarfing No.1 in the hybrid F1. However, Refers to the short “derived” dwarf Su 3 "caused by the same short ability. Using GA3 chemical markers, unequal sex determination of dwarfing genes and chromosomal location of dwarfing genes, we confirmed that Dwarfing No.1 derivative dwarf source carrying Rht10 in XINNONG 02 was indeed identified. Pointed out that in terms of short ability to cause, whether Rht3 or Rht10 are suitable for hybrid wheat breeding. The activity of α-amylase of dwarf germinating seeds including Xinong 02, Dwarfing 1 and Dwarf 3 were determined. It was found that the α-amylase activity of dwarfing derived dwarf source was higher than that of dwarf Su-3 Low, and pointed out that only using near-isogenic lines in order to Rht3 and Rht10 hybrid wheat breeding in the gene polymorphism to make a comprehensive and accurate evaluation. Then the discovery, research and utilization of dominant dwarf sources in nature are discussed. Pointed out that the dwarf dwarf means short, dwarfing only Rht3, Rht10 exists in nature in a special form, the nuclear genetic background can greatly adjust Rht3, Rht10 plant height phenotype, so Rht3, Rht10 not only in Hybrid wheat and may benefit from routine wheat breeding?