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首页> 外文期刊>PLoS One >Vegetative traits can predict flowering quality in Phalaenopsis orchids despite large genotypic variation in response to light and temperature
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Vegetative traits can predict flowering quality in Phalaenopsis orchids despite large genotypic variation in response to light and temperature

机译：尽管响应于光温和温度，但植物特征可以预测兰花植物兰花的开花质量

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Phalaenopsis is an economically important horticultural ornamental, but its growth is slow and costly. The vegetative cultivation phase is long and required to ensure sufficient plant size. This is needed to develop high quality flowering plants. We studied the effects of temperature (27 or 31 °C) and light intensity (60 or 140 μmol m -2 s -1 ) on plant growth and development during the vegetative cultivation phase in two experiments, with respectively 19 and 14 genotypes. Furthermore, the after-effects of treatments applied during vegetative growth on flowering traits were determined. Increasing light intensity in the vegetative phase accelerated both vegetative plant growth and development. Increasing temperature accelerated vegetative leaf appearance rate, but strongly reduced plant and root biomass accumulation when temperatures were too high. Flowering was greatly affected by treatments applied during vegetative growth, and increased light and temperature increased number of flower spikes, and number of flowers and buds. Genotypic variation was large in Phalaenopsis , especially in traits related to flowering, thus care is needed when generalising results based on a limited number of cultivars. Plant biomass and number of leaves during vegetative growth were positively correlated with flowering quality. These traits can be used as an early predictor for flowering capacity and quality of the final product. Additionally, this knowledge can be used to improve selection of new cultivars.
机译：蝴蝶兰是一种经济上重要的园艺装饰，但其增长缓慢而昂贵。营养培养阶段长期，需要确保足够的植物尺寸。这是开发高品质开花植物所需的。我们研究了温度（27或31℃）和光强度（60或140μmolM-2S -1）对两项实验期间植物生长和发育的影响，分别为19和14种基因型。此外，确定了在开花性状上营养生长期间施用的治疗后的后效应。增加植物阶段的光强度加速了营养植物生长和发育。温度升高的温度加速营养叶外观率，但在温度过高时，植物和根生物质积累。在营养生长期间施用的治疗，开花很大影响，并且增加了轻盈和温度增加的花穗数，以及花朵和芽的数量。基因型变异在胆管上大大，特别是在与开花相关的性状中，因此在基于有限数量的品种的展示结果时需要小心。植物生物质和植物生长期间的叶子数与开花质量正相关。这些特征可以用作开花容量和最终产品质量的早期预测因子。此外，这种知识可用于改善新品种的选择。

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