农业科学与技术(英文版)
農業科學與技術(英文版)
농업과학여기술(영문판)
AGRICULTURAL SCIENCE & TECHNOLOGY
2014年
9期
1562-1566
,共5页
柏木%优树%苗期性状%家系%早期选择
柏木%優樹%苗期性狀%傢繫%早期選擇
백목%우수%묘기성상%가계%조기선택
Cupressus funebris%Superior tree%Seedling trait%Family%Early selection
[目的]充分利用柏木种源、家系间广泛的遗传变异进行良种选育和遗传改良。[方法]以来自重庆市和浙江省千岛湖的4个种源34个柏木优树家系2年生苗为材料,研究家系和种源间苗期生长性状的差异性。[结果]苗高与地径在家系和种源间均存在极显著差异,家系间变异系数分别为11.37%和18.89%,种源间变异系数分别为7.25%和12.58%。[结论]柏木的苗高与地径在家系和种源间存在较为丰富的变异,具有选育潜力。
[目的]充分利用柏木種源、傢繫間廣汎的遺傳變異進行良種選育和遺傳改良。[方法]以來自重慶市和浙江省韆島湖的4箇種源34箇柏木優樹傢繫2年生苗為材料,研究傢繫和種源間苗期生長性狀的差異性。[結果]苗高與地徑在傢繫和種源間均存在極顯著差異,傢繫間變異繫數分彆為11.37%和18.89%,種源間變異繫數分彆為7.25%和12.58%。[結論]柏木的苗高與地徑在傢繫和種源間存在較為豐富的變異,具有選育潛力。
[목적]충분이용백목충원、가계간엄범적유전변이진행량충선육화유전개량。[방법]이래자중경시화절강성천도호적4개충원34개백목우수가계2년생묘위재료,연구가계화충원간묘기생장성상적차이성。[결과]묘고여지경재가계화충원간균존재겁현저차이,가계간변이계수분별위11.37%화18.89%,충원간변이계수분별위7.25%화12.58%。[결론]백목적묘고여지경재가계화충원간존재교위봉부적변이,구유선육잠력。
Breeding and genetic improvement for Cupressus funebris was performed based on the extensive genetic variation among provenances and fami-lies. [Method] The two-year-old Cupressus funebris, from 4 provenances and 34 superior Cupressus funebris families introduced from Chongqing and Qiandao Lake of Zhejiang Province, was used as test material, and the differences in growth traits among provenances and families at the seedling stage of Cupressus funebris were investigated. [Result] The height and ground diameter of seedlings differed signifi-cantly among provenances and families. Their variation coefficients among families were 11.37% and 18.89%, and among provenances were 7.25% and 12.58% re-spectively. [Conclusion] There was relatively rich genetic variation in height and ground diameter among provenances and families of Cupressus funebris. lt has a certain breeding potential.