野生硬核种子的表型变异1) |
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引用本文: | 吴裕,张凤良,毛常丽,曾建生,何美莹. 野生硬核种子的表型变异1)[J]. 东北林业大学学报, 2015, 0(8): 29-33. DOI: 10.3969/j.issn.1000-5382.2015.08.007 |
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作者姓名: | 吴裕 张凤良 毛常丽 曾建生 何美莹 |
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作者单位: | 云南省热带作物科学研究所,景洪,666100 |
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基金项目: | 1)云南省热带作物科技创新体系建设专项资金( RF2013-9)。 |
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摘 要: | 对云南野生油料树种硬核( Scleropyrum wallichianum )4个县7个群体80株树的种子进行群体变异分析。结果表明:硬核种子大小在群体内的平均表型变异占93.72%,而群体间平均表型变异占6.28%。7个群体海拔分布范围为1100~1580 m,群体间平均种子长为22.27~24.70 mm,平均种子宽为17.91~20.28 mm,平均单粒种子质量为3.17~4.33 g,海拔越高,种子越小。种子形态和种皮刻纹深浅等质量性状受环境影响较小。
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关 键 词: | 硬核种子 油料树种 表型变异 |
Phenotype Variations of Seed in Wilding Scleropyrum wallichianum |
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Abstract: | Field investigation and sample collection of wilding oil-bearing tree Scleropyrum wallichianum were conducted in four counties, Yunnan.Based on the date of seeds from 80 individuals in 7 natural forest populations, its phenotype variations was investigated.There were larger variation within population ( 93.72%) and smaller variation ( 6.28%) among popula-tions.The average single seed length, diameter and weight variation ranges were 22.27-24.79 mm, 17.91-20.28 mm and 3.17-4.33 g, respectively, in 7 populations at 1 100-1 580 m.The seed from high altitude were smaller than those from low altitude.Vein of shell and shape of seed was affected slightly by environmental factors. |
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Keywords: | s Scleropyrum wallichianum seed Oil-bearing tree species Phenotype variation |
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