油用牡丹凤丹超级苗选择初探  

A Study of Superior Seedling Selection of Paeonia ostii

作　　者：杨马进 高洁[2] 罗建勋[2] 段进富 

机构地区：[1]西华师范大学生命科学学院,四川南充637009 [2]四川省林业科学研究院,四川成都610081 [3]四川国康农业科技有限公司,四川绵阳621000

出　　处：《四川林业科技》2016年第6期12-16,共5页Journal of Sichuan Forestry Science and Technology

基　　金：四川省科技支撑计划项目"突破性林木新品种选育与育种材料创新"--"木本油料突破性新品种选育;育种材料与方法创新"专题

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,3a、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%。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 seed- lings celeated rotion was 4.36%. ④955 superior seedlings were selected by comprehensive selection way with a selection ratio of 3.91%.

关 键 词：凤丹 超级苗 选择标准 

分 类 号：S565.9[农业科学—作物学]