CAJ | 학술논문

以国内樟子松为对照,对引进的10个种源盐松2年生苗木生长性状进行了测定和分析.结果表明:种源间地径、苗高、地上干质量、地下干质量、顶芽长度和最大侧根长差异极显著,主根长差异显著,最长初生针叶长不显著.除地径和主根长外,其它性状的遗传力均在80%以上,遗传变异系数均在16%以上,具有丰富的遗传变异基础.应用综合选择指数法对11个种源苗木生长状况进行评价,结果表明盐松的生长状况优于樟子松.以2种标准进行优良种源初步选择,按标准I选择的优良种源为N9和17274种源,按标准II选择的优良种源为N9、17274、17267、N10和754种源.标准I较标准II选择更严格,获得的遗传增益更大.
이국내장자송위대조,대인진적10개충원염송2년생묘목생장성상진행료측정화분석.결과표명:충원간지경、묘고、지상간질량、지하간질량、정아장도화최대측근장차이겁현저,주근장차이현저,최장초생침협장불현저.제지경화주근장외,기타성상적유전력균재80%이상,유전변이계수균재16%이상,구유봉부적유전변이기출.응용종합선택지수법대11개충원묘목생장상황진행평개,결과표명염송적생장상황우우장자송.이2충표준진행우량충원초보선택,안표준I선택적우량충원위N9화17274충원,안표준II선택적우량충원위N9、17274、17267、N10화754충원.표준I교표준II선택경엄격,획득적유전증익경대.
Growth characteristics of 2-year-old seedlings from 10 introduced P. sylvestris L. ssp. kulendensis Sukaczw provenances were determined in contrast with domestic Pinus sylvestris var. mongolica Litv. Results showed that there were extremely significant differences (P<0.01) in ground diameter, seedling height, dry weight of stem and root, top bud length and maximum length of branch root, significant differences (P<0.05) in main root length and insignificant differences (P>0.05) in the maximum length of primary needle leaf. Except for ground diameter and main root length, heritabilities of all the characteristics were more than 80%, and genetic variation coefficients were more than 16%, indicating an abundant genetic variation in P. sylvestris ssp. kulendensis. Seedling growth of 11 provenances was evaluated by means of comprehensive selection index, and it indicated that the growth P. sylvestris ssp. kulendensis was superior to that of P. sylvestris var. mongolica. Superior provenances were selected according to 2 standards, namely N9 and 17274 under Standard I, and N9, 17274, 17267, N10 and 754 under Standard II. In contrast to Standard II, Standard I was stricter, which could get more genetic gain.