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首页> 外文期刊>Studia Universitatis Vasile Goldis: Seria Stiintele Vietii >The germination and growth of Brassica oleracea L. var. capitata f. rubra plantlets under the influence of colored light of different provenance
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The germination and growth of Brassica oleracea L. var. capitata f. rubra plantlets under the influence of colored light of different provenance

机译：甘蓝型油菜的发芽和生长。卡皮塔塔山不同种源的有色光影响下的红花幼苗

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摘要

In this study we followed comparatively the white and colored (blue, green, yellow and red) light effects emitted by superbright Light-Emitting Diodes (LEDs) and by fluorescent tubes, over the red cabbage seeds germination and the growth of the plantlets generated from theirs embryos. Luminous intensity corresponded at 1200 lx and the lighting regime was of 16 h/24 h. The control version was exposed to natural light, of northern orientation. The highest germination percentages were registered at the seeds illuminated with white light of various origins (97% - natural, 95% - LEDs and 93% fluorescent tubes). Instead, the lowest percentage of germination (81%) was recorded at the variant subjected to yellow fluorescent tubes. The biggest seedlings and the highest values of the dry weight were observed in the group illuminated with green LEDs light, the hypocotyl size being 75% higher and its dry mass 77% greater than those of the control samples, represented by seedlings grown in natural light. The highest dimension and dry weight of the plantlets grown under fluorescent colored lights were found at the red one, due to the increases with 48.8% of the hypocotyl length and with 41.5% of its dry mass. With the decrease of wavelength of light, the hypocotyls’ color intensified, turned from pink to purple, an effect produced regardless of the nature of light.
机译：在这项研究中，我们比较关注了超高亮发光二极管（LED）和荧光灯管在红甘蓝种子发芽和从中产生的小苗生长过程中产生的白色和彩色（蓝色，绿色，黄色和红色）光效应。他们的胚胎。发光强度对应于1200 lx，照明状态为16 h / 24 h。对照版本暴露于朝北的自然光​​下。在各种来源的白光照射下，种子的发芽率最高（97％-天然，95％-LED和93％荧光灯管）。取而代之的是，在经过黄色荧光灯管照射的变体中，发芽率最低（81％）。在绿色LED灯照明的组中，观察到最大的幼苗和最大的干重值，下胚轴大小比对照样品高75％，其干质量比对照样品大77％，其表现为自然光照下生长的幼苗。在红色荧光灯下发现了在荧光灯下生长的小植株的最大尺寸和最大干重，这是由于下胚轴长度增加了48.8％，干重增加了41.5％。随着光波长的减少，下胚轴的颜色增强，从粉红色变为紫色，不管光的性质如何，都会产生这种效果。

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