| 摘要: |
| 采用60Co-γ 射线对岑软2 号、岑软3 号、岑软11 号3 个普通油茶（Camellia oleifera）无
性系种子进行0、1 000、2 000、3 000 rad 剂量辐射处理，对连州1 号普通油茶优树种子进行0、1 000、
2 000 rad 剂量辐射处理，研究辐射对成年油茶植株树高和冠幅、果产量、果实形态等指标的影响。结果
表明：4 种油茶经60Co-γ 辐射处理后，树高、冠幅间无显著差异，且单株均能正常生长；平均单株果产
量随年份呈现明显的大小年变化，岑软2 号、岑软3 号在2014 年辐射组平均单株果产量较CK 有明显提
高，岑软11 号的年平均单株果产量在0~3 000 rad 剂量范围内随辐射剂量的增加而下降；3 000 r 辐射使岑
软11 号油茶果实纵横经减小，其他辐射组岑软11 号果实纵、横径生长均有不同程度的增长；岑软2 号
在1 000 r 辐射下果皮变薄，岑软11 号在3 000 r 辐射下果皮变薄而种皮厚度变化不明显，不同辐射组间
岑软3 号和连州1 号果皮及种皮厚度没有显著变化。 |
| 关键词: 油茶 60Co-γ射线辐照 生长量 果实性状 |
| DOI： |
| 分类号:S722.35 |
| 基金项目:广东省林业科技创新专项“油茶良种选育及病害无公害防治技术研究与示范（2013KJCX009-05） |
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| Effect of 60Co-γ Rays Irradiation Treatments on Growth and Fruit Shape of Camellia oleifera |
|
LI Biao,ZHA Qianhui and HUANG Yongfang
|
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College of Forestry and Landscape Architecture,South China Agricultural University,Guangzhou,Guangdong ,China,College of Forestry and Landscape Architecture,South China Agricultural University,Guangzhou,Guangdong ,China
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| Abstract: |
| In order to study the effect of 60 Co-γ rays irradiation treatments for the growth indexes, fruit
indicators including its number and shape, the 60Co-γ radiation treatment was utilized for the seeds of 3 Camellia
oleifera clones ( C. oleifera "Cenruan NO. 2", "Cenruan NO. 3" and "Cenruan NO. 11") via 0, 1 000, 2 000, 3 000
rad respectively and the seeds of C. oleifera ‘ Lianzhou NO. 1’ via 0, 1 000, 2 000 rad respectively. The result
showed that there were no significant effects on the tree height and canopy of four camellia trees under different
60Co-γ radiation treatments and individual trees grew normally. The average single yield of four camellia trees
under different 60Co-γ radiation treatments showed the high-low trend in every two year, in which the average
single yield of "NO.2" and "NO.3" in 2014 radiation group had increased obriusly compared with CK, and
"NO.11" dropped as while the 60Co-γ radiation increased to the range of 0~3 000 rad. 3 000 rad could make fruit
diameter of C. oleifera "Cenruan NO. 11" decreased. The peel coats of C. oleifera "Cenruan NO. 2" was thinner
under 1 000 rad while the seed coat of C. oleifera "Cenruan NO. 11" remained, and its peel was thinner under
3 000 rad. There were no sicnificant variation on peel and seed coat thickness of "Cenruan NO.3" and "Lianzhou
No.1" in different radiation group. |
| Key words: Camellia oleifera 60Co-γ radiation growth fruit shape |
