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首页> 外文期刊>Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca: Horticulture >Variability of the Traits of Cones and Seeds in Different Larch Clones I. The Influence of the Provenance
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Variability of the Traits of Cones and Seeds in Different Larch Clones I. The Influence of the Provenance

机译：不同落叶松无性系中锥和种子性状的变异性I.种源的影响

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Phenotypic variability of the cones and seeds was studied on seven larch clones that were obtained through grafting from plus trees, selected from natural and artificial populations from Romania. Also, correlations between several characteristics such as cones weight (g), cone length and width (cm), seed weight (mg), seed length and width (mm) were studied. A wide variation was observed for the weight of cones, ranged between 1.97-4.93 g, the average for all clones being 3.50 g. The coefficient of variability for cones weight oscillated, depending on the provenance, from 11.1% to 21.2%. Seeds weight varied between 54.4-74.4 mg, with a mean value of 61.9 mg. The weight of cones was positive correlated with all traits, except width of cones and seeds length. Weight of seeds was strong correlated with all traits, the biggest value of the coefficient of correlation being registered with the weight of cones (0.835). A very strong correlation (+0.939) was registered between the germination energy and germination capacity of seeds, but germination of seeds was negative linked with all traits of cones and seeds, not statistically correlated. The heritability in broad sense had high values, comprised between 0.943 (width of cones) and 0.993 (weight of cones). The results had illustrated that the peculiarities of the cones and seeds have a strong genetic determinism, influenced especially by the genotype and in a relatively small extent by the environment.
机译：在七个落叶松无性系上研究了视锥和种子的表型变异性，这些落叶松是通过从罗马尼亚的自然和人工种群中选出的正树嫁接而获得的。此外，还研究了一些特性之间的相关性，例如球果重量（g），球果长度和宽度（cm），种子重量（mg），种子长度和宽度（mm）。视锥细胞的重量观察到很大的变化，范围在1.97-4.93 g之间，所有克隆的平均值为3.50 g。视来源而定，视锥重的变异系数在11.1％至21.2％之间波动。种子重量在54.4-74.4 mg之间变化，平均值为61.9 mg。球果的重量与所有性状呈正相关，除了球果的宽度和种子的长度。种子的重量与所有性状都具有很强的相关性，相关系数的最大值与果皮的重量相关（0.835）。种子的发芽能和发芽能力之间有非常强的相关性（+0.939），但种子的发芽与视锥和种子的所有性状均呈负相关，没有统计学相关性。广义上的遗传力具有较高的值，介于0.943（视锥宽度）至0.993（视锥重量）之间。结果表明，视锥和种子的特性具有很强的遗传确定性，特别是受基因型影响，而受环境影响的程度相对较小。

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