Research on Comparative Forestation Tests of Heterosis F₁ Progeny of Juglans nigra and Juglans regia L.Interspecific Hybridization(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Research on Comparative Forestation Tests of Heterosis F₁ Progeny of Juglans nigra and Juglans regia L.Interspecific Hybridization

Author(s):: LIU Xin-yan¹; SUN De-xiang¹; ZHAO Ying²; FENG Yue-sheng³; 1.Yangling Vocational and Technical College，Yangling，Shaanxi 712100；
2.The Three-north Shelterbelt Construction Bureau，The State Forestry Administration，Yinchuan，Ningxia 750001；
3.Shanxi Forestry Popularization Terminal，Taiyuan，Shanxi 030001

Keywords:: Juglans nigra; Juglans regia L.; interspecific hybridization; clones; comparative forestation test

Abstract:: Taking imported east-central Juglans nigra and J.major of American walnuts for hybrid female parent，Juglans regia L. for hybrid male parent，wherein the J.major as female type 4，K1，K2，K3，K4 code；east-central Juglans nigra as female type 6，D1，D2，D3，D4，D5，D6 code.Through comparative forestations tests (pilot scale) on F₁ progeny，the heterosis clones of Juglans nigra and Juglans regia L. interspecific hybridization, and analysis on tree height and stem base growth were studied.The results showed that K1,K3,D2,D4,D6 clones were found due to excellent performance，it showed noticeable genetic gain，considerable economic returns and high resistance to coldness,in straight stem form，small branching angle.

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Last Update: 2014-08-24