The main characters of fruits and seedlings of F1 obtained by hybridization between male parent Corya illinoensis and female parent Carya cathayensis were examined. The results showed that characters of F1 were significantly different from that of control in terms of weight and size of fruit and seed, height and diameter of seedlings growth. The weight, height and diameter of fruits were higher than the control by 291 %, 72 %, 110 %, respectively. And the weight, height and diameter of seed were higher than the control by 309 %，813 %，124 %, respectively. The average height and diameter of 3 years old seedlings were higher than the control by 181 % and 197 %. And it could achieve 292 % and 3281 % after having planted for 2 years. Therefore, It was effective to increase fruit size and improve characters through interspecific hybridization. Seedlings with double embryos in F1 generation accounted for 10 % which was 5 times higher than the control.
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
References
［1］黎章矩.山核桃栽培与加工［M］.北京:中国农业科学技术出版社,2003.
［2］叶茂富,吴厚钧.山核桃与薄壳山核桃杂交的研究［J］.林业科学,1965,10(1):25-28.
［3］胡芳名,龙光生.经济林育种学［M］.北京:中国林业出版社,1997.
［4］李周岐,王章荣.林木杂交育种研究新进展［J］.西北林学院学报,2001,16(4):93-96.
［5］李周岐,王章荣.鹅掌楸属种间杂交可配性与杂种优势的早期表现［J］.南京林业大学学报：自然科学版,2001,25(2):34-38.
［6］王章荣.鹅掌楸属(Liriodendron)杂交育种回顾与展望［J］.南京林业大学学报：自然科学版,2003，27(3):76-78.
［7］於朝广,殷云龙.落羽杉属树木种间杂交选育研究进展［J］.江苏林业科技,2008,35(2):39-46.
［8］常祥祯,张金凤,罗建勋,等.冷杉属种间人工杂交研究进展［J］.北京林业大学学报,2004,26(3):82-87.
［9］马贯羊,张淑英,尹华.核桃属种间远缘杂交育种初报［J］.河南林业科技,2009,21(1):13-14.
［10］范志远,习学良,方文亮,等.种间杂交3个优良早实核桃新品种的选育［J］.浙江林学院学报，2005,22(5):518-523.
［11］李梅,甘四明,李发根,等.桉属种间杂种生长和抗青枯病的联合选择［J］.南京林业大学学报：自然科学版,2007,31(6):25-28.
［12］曹后男,朴日子,宗成文,等.桃、李种间杂交花粉萌发及花粉管行为的观察［J］.果树学报，2004,21(4):302-307.
［13］栾启福,姜景民,张建忠, 等.国外松种间杂交育种及其F1代早期生长评价［J］.林业科学研究,2008,21(3):314-319.
［14］孟伟伟,潘惠新,黄敏仁.美洲黑杨×欧美杨杂种无性系生长分析［J］.南京林业大学学报：自然科学版,2008，32(1):139-141.
［15］山核桃栽培技术［EB/OL］.
PDF(1173176 KB)
