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杨马进, 高洁, 罗建勋, 段进富. 油用牡丹凤丹超级苗选择初探[J]. 四川林业科技, 2016, 37(6): 12-16. DOI: 10.16779/j.cnki.1003-5508.2016.06.003
引用本文: 杨马进, 高洁, 罗建勋, 段进富. 油用牡丹凤丹超级苗选择初探[J]. 四川林业科技, 2016, 37(6): 12-16. DOI: 10.16779/j.cnki.1003-5508.2016.06.003
YANG Ma-jin, GAO Jie, LUO Jian-xun, DUAN Jin-fu. A Study of Superior Seedling Selection of Paeonia ostii[J]. Journal of Sichuan Forestry Science and Technology, 2016, 37(6): 12-16. DOI: 10.16779/j.cnki.1003-5508.2016.06.003
Citation: YANG Ma-jin, GAO Jie, LUO Jian-xun, DUAN Jin-fu. A Study of Superior Seedling Selection of Paeonia ostii[J]. Journal of Sichuan Forestry Science and Technology, 2016, 37(6): 12-16. DOI: 10.16779/j.cnki.1003-5508.2016.06.003

油用牡丹凤丹超级苗选择初探

A Study of Superior Seedling Selection of Paeonia ostii

  • 摘要: 以3a、4a、5a生凤丹实生苗为试验材料,分析探讨凤丹超级苗选择方法与标准,并根据拟定的标准选出适宜的凤丹植株,营建凤丹超级苗苗圃基地,为凤丹大规模种植提供优良的种质资源。结果表明:①同等栽植条件下,3 a、4 a、5 a生同龄级凤丹个体之间的苗高、地径生长量存在极显著差异,且3 a、5 a生凤丹地径生长量差异大于苗高生长量。② 3 a、4 a、5 a生凤丹地径与苗高均存在正相关关系,但仅5a生苗关系显著。③凤丹超级苗选择标准按平均地径、平均苗高同时加上1.5倍标准差,3 a生苗入选率为3.81%,4 a生苗入选率为4.57%,5 a生苗入选率为4.36%。④选择出符合标准的凤丹植株955株,合计入选率3.91%。

     

    Abstract: The selection method and standard of the superior seedlings were studied and based on the datum with 3 to 5 years old Paeonia ostii,and according to the standard to select the appropriate plants to establish Paeonia ostii superior seedling nursery base,aiming to provide excellent germplasm resources for large-scale cultivation of Paeonia ostii.The results showed that:①heights and basal diameter increments among 3~5 years old Paeonia ostii were significantly different,and difference in basal diameter growth was more than in the height of 3 and 5 years old seedlings.②Height and basal diameter increment of individuals among the same age were in positive correlation,but only those of 5 years old seedlings were significant.③The average height and average basal diameter adding one point five times by standard variance selection way were used as the Paeonia ostii superior seedlings selection standard,and the 3 years old seedling selected ratio was 3.81%,4 years old seedling selected ratio was 4.57%,5 years old seedlings celeated rotion was 4.36%.④955 superior seedlings were selected by comprehensive selection way with a selection ratio of 3.91%.

     

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