CAJ | 학술논문

以长白落叶松半同胞子代24年生林分为研究对象，测定了胸径、树高和材积生长因子，结果表明：不同半同胞家系林木各生长因子间差异均达极显著水平，说明长白落叶松半同胞家系间存在较为丰富的遗传变异，具选育潜力。24年生长白落叶松林分胸径、树高及材积遗传力分别为O．6808、0．7178及0．76060根据性状遗传力的大小，以树高、胸径和材积最为优良落叶松半同胞家系选择指标，采用25％入选率进行选优时，可选出4个优良半同胞家系，其树高、胸径和材积遗传增益分别可达5．26％、8．32％和19．83％。
이장백락협송반동포자대24년생림분위연구대상，측정료흉경、수고화재적생장인자，결과표명：불동반동포가계림목각생장인자간차이균체겁현저수평，설명장백락협송반동포가계간존재교위봉부적유전변이，구선육잠력。24년생장백락협송림분흉경、수고급재적유전력분별위O．6808、0．7178급0．76060근거성상유전력적대소，이수고、흉경화재적최위우량락협송반동포가계선택지표，채용25％입선솔진행선우시，가선출4개우량반동포가계，기수고、흉경화재적유전증익분별가체5．26％、8．32％화19．83％。
Using 24- years-old half-sib progenies of Larix olgensls stand as materials, growth factors such as diameter at breast height （DBH）, tree height, and timber volume were measured.The results showed that there were significant differences of growth factors measured among different half-sib progenies, indicating that there were abundant genetic variation among half-sib progenies family and potentials for selection. The heritability of DBH ,height and timber volume of 24 years old Larix olgensis stand were 0.6808, 0.7178and 0.7606, respectively . According to the heritability value, height, timber volume and DBH could be used as selection indexes. Using 25% as selection ratio, 4 superior half-sib progenies families could be selected with genetic gains of height, DBH and timber volume were 5.26%, 8.32% and 19.83%, respectively.