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绿化苗木桂花的育苗技术 总被引:1,自引:0,他引:1
《现代园艺》2015,(4)
桂花是我国特有的常绿阔叶灌木或乔木树种,属于木樨科植物,是目前我国城镇绿化、园林建设使用最多的花木。桂花种子成熟期在5月份左右,11月以后开始播种。同时,由于桂花种植面积大,对种子、木苗的需求较多,因此,种植人员应加强桂花种子繁殖、育苗管理,提高育苗技术。文章主要绿化苗木桂花的育苗技术详细介绍,为桂花育苗提供参考。 相似文献
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采用优良大叶女贞种子进行播种育苗试验,结果得出种子采集最佳时期、每667m2播种量、播种后覆土厚度及苗期管理措施,并总结大叶女贞有性育苗成功的关键技术环节。 相似文献
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O. S. H. Reinecke 《The Journal of Horticultural Science and Biotechnology》2013,88(2):164-174
SummaryTurkey has a huge wild Pistacia germplasm that mainly includes P. terebinthus, P. atlantica and P. eurycarpa species. In this study, seed and seedling behaviour of these species are characterized at intra- and inter-specific level. Seed and seedlings of 63 Pistacia genotypes: 10 P. terebinthus, 45 P. atlantica and eight P. eurycarpa genotypes from different parts of Turkey were evaluated as their characteristics of germination, seedling growth and budding success. Correlations between morphological traits of maternal trees and seed/seedling characteristics of their progeny were performed as well. There was a large variability for each of the evaluated character at the inter- and intra-specific level. However, in the average, P. eurycarpa had the highest germination percentage, whereas P. terebinthus had the lowest. The seedling growth of P. atlantica was better than P. terebinthus and P. eurycarpa. Budding success was not significant between species. Correlation coefficient values suggested that a few of the associations between morphological traits of maternal trees and seed germination and seedling characters of their progeny vary between those of three species. 相似文献
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The rhizome, stem and leaf aqueous extracts of ginger were assayed at 10, 20, 40, and 80 g l−1 for their effects on seed germination and early seedling growth of soybean and chive. All aqueous extracts at all concentrations inhibited seed germination, seedling growth, water uptake and lipase activity of soybean and chive compared with the control, and the degree of inhibition increased with the incremental extracts concentration. The degree of toxicity of different ginger plant parts can be classified in order of decreasing inhibition as stem > leaf > rhizome. The results of this study suggest that rhizome, stem and leaf of ginger contain water-soluble allelochemicals which could inhibit seed germination and seedling growth of soybean and chive. The rhizome is the main harvested part of ginger. The residue (mainly stems and leaves) of the ginger plant should be removed from the field so as to diminish its inhibitory effect. Further work is needed to specify and verify the allelochemicals produced by this plant. The results of this study suggest that ginger allelochemicals are heterotoxic, and thus intercropping should not be practiced using ginger. 相似文献
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香木莲是我国珍贵观赏和高效多用途树种,开发前景广阔。本文从种子的采集和处理、圃地选择和作床、种子处理、苗期管理、病虫害防治等方面介绍了香木莲播种育苗技术。 相似文献
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在同一生境下用种子苗、根茎苗繁殖光果甘草(GlycyrrhizaglabraL.)、胀果甘草(GlycyrrhizainflataBat.)、乌拉尔甘草(GlycyrrhizauralensisFisch.),并对其地上部分(株高)和地下部分(根数、根粗、根茎数和根茎粗)进行比较研究。结果表明:(1)5种甘草地上部分、地下部分生长特征大部分种子苗优于根茎苗。(2)j种甘草生长特性表现不一致。在株高方面,种子苗和根茎苗均为胀果甘草表现最优;在根数方面,种子苗和根茎苗均为乌拉尔甘草最优;在根茎数和根粗方面,种子苗为乌拉尔甘草最优,根茎苗为胀果甘草最优;在根茎粗方面,种子苗为乌拉尔甘草最优,根茎苗为胀果甘草最优。(3)3种甘草种子苗、根茎苗根粗和根茎粗均与株高呈相关关系。 相似文献
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适宜浓度壳聚糖可以提高种子萌发能力及促进幼苗生长,还可增强植物的抗逆性并对一些植物病害具有一定的防治作用。现从壳聚糖对植物种子萌发和幼苗生长的影响二方面分析了壳聚糖对植物萌发阶段影响的研究成果,重点介绍了壳聚糖对种子发芽率(势)、种子活力的影响,以及壳聚糖对幼苗内叶绿素、可溶性蛋白和可溶性糖含量的影响,为壳聚糖在农业应用上的研究提供新思路。 相似文献