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针对传统温室环境生产的种苗存活率低、品质差、不利于大规模商品化生产的现状,北京京鹏环球科技股份有限公司研制了闭锁型工厂化育苗系统,该系统通过人工控制,采用科学化、标准化技术措施,运用机械化、自动化手段,使种苗在最佳环境下生长;同时以黄瓜(寒光65)为试材,分析了不同光源对黄瓜幼苗下胚轴长、茎粗及第一真叶叶面积大小的影响,试验结果表明,LED光源比荧光灯具有显著促进黄瓜幼苗生长的作用,且对黄瓜幼苗下胚轴的伸长具有显著促进作用。 相似文献
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试验应用6种(T1无纺布+珍珠岩,T2无纺布+播种纸,T3海绵,T4养鱼专用过滤棉,T5白色珍珠棉泡沫,CK珍珠岩)不同育苗材料进行生菜育苗,通过对生菜幼苗的综合生长指标测定,筛选出适合生菜无基质营养液育苗的方式。试验结果表明,T1处理除出苗率稍低于CK处理外,生菜幼苗株高、叶面积、叶片数、地上部干/鲜质量和根冠比都显著高于CK,且达到差异显著水平,幼苗综合生长指标T1处理最好,所以T1处理是适合生菜无基质营养液育苗的方式,而T2、T3、T4、T5处理在本试验条件下不适于生菜的育苗。 相似文献
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叶用莴苣（生菜）种子经精选、引发和丸粒化处理后，采用单粒播种、一次成苗穴盘育苗技术，可显著提高育苗效率，节省用种、用工成本，生产100 万株种苗理论上可节省11 640 元。 相似文献
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作者以美国大速生菜为试材,采用对比法,将腐熟的麦秆、椰糠、煤渣按不同比例配制成基质进行育苗试验,研究不同配方基质对生菜生长的影响.试验结果表明,用煤渣、椰糠、小麦秸秆按1:1:1比例配制的基质较适合生菜幼苗的生长发育,生菜幼苗表现出长势旺盛,叶片的叶绿素和可溶性糖含量显著高于其他配方处理,且根系活性最高. 相似文献
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以‘绿蝶’生菜为试材,采用营养块育苗、岩棉块育苗、泡沫块育苗和漂浮育苗等营养液育苗方式进行育苗,通过测定生菜幼苗的叶片形态、根系形态、干鲜质量和壮苗指数等指标,分析比较不同育苗方式的育苗效果,结合可操作性和投入成本,以期筛选出适合生菜的育苗方式,为生菜优质种苗的生产提供参考依据。结果表明：营养块育苗和漂浮育苗方式下生菜育苗效果显著优于其它育苗方式,但漂浮育苗受基质理化性质影响较大,具体表现为T1(营养块)和T6(椰糠∶草炭=7∶3)处理生菜幼苗的茎粗、干鲜质量和壮苗指数等指标均显著高于其它处理,壮苗指数较T3(普通海绵块)处理分别增加了215%和251%;但从实际操作难易程度和投入成本考虑,漂浮育苗比营养块育苗操作简单,且投入成本低,是适合生菜营养液育苗的方式,建议基质配比选用椰糠∶草炭=7∶3为宜。 相似文献
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安徽省地理位置独特,是酥梨生产胜地,安徽酥梨以光滑个大、多汁酥脆为主要特点,以独特口感与外观得到了众多消费者的喜爱.本文从安徽酥梨轻简生产技术的优势入手,着重阐述了安徽酥梨轻简生产技术应用流程,同时也对酥梨配套生产模式的合理性进行了分析,以促进轻简生产配套技术在酥梨种植中的推广应用. 相似文献
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研究了6种不同型号光源对切花菊‘深志’花芽分化抑制效果及开花品质的影响。结果表明:150W高压钠灯在花芽分化进程、花发育与开放进程、鲜重和重瓣性等方面,与自然条件相比都没有明显差异,既能满足出口切花菊生产要求,又可明显降低生产成本,是现阶段比较理想的切花菊生产光源。 相似文献
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T. Van Delm P. Melis K. Stoffels M. Vervoort D. Vermeiren W. Baets 《International Journal of Fruit Science》2016,16(4):118-128
ABSTRACTStrawberry production in Belgium has evolved from being a June-harvested crop grown in soil to a year-round crop grown in multiple production systems, as a result of the development of new cultivars and production techniques. Strawberry cultivation used to be one aspect of diverse family enterprises, but now strawberry farms are specialized. In the beginning, strawberries were only harvested in June. Covering the crop with plastic tunnels allowed the harvest to advance to May. Subsequently, an important innovation was the use of cold-stored plants in year-round plantings, which also allowed later production. This evolution in combination with the development of various cultivation systems using peat substrates (including table-tops, plastic greenhouses, and glasshouses) resulted in a strawberry production period from March until December–January. Recently, interest in assimilation lighting in glasshouses has increased. At first, this allowed advanced production in February, but now even winter production is possible, resulting in fresh Belgian strawberries 365 days a year. 相似文献
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Byeong-Sam Kim Mengmeng Gu Kyung-Chul Cho Duck-Soo Choi Bong-Ki Yun Seok-Kyu Jung 《The Journal of Horticultural Science and Biotechnology》2016,91(4):332-340
Oil cake, widely used as an organic source of nutrients in horticultural production in South Korea, is a by-product when oil is extracted from various oilseeds. Split applications of oil cake were supplied to evaluate their effects on tree growth and fruit production in organic, non-astringent persimmon (Diospyros × kaki Thunb.) trees in 2009 and in 2010. Treatments included a single annual application of oil cake at 150 kg N ha?1 in April (single application), two applications in April and July (105 and 45 kg N ha?1, respectively; two-split application), or three applications in April, June, and August (60, 45, and 45 kg N ha?1, respectively; three-split application), as well as zero application of oil cake (control). All applications of oil cake significantly increased the amount of ground-cover vegetation compared to the control. The single and two-split applications increased soil organic matter (OM), K2O, CaO, and MgO concentrations, and cation exchange capacity to a soil depth of 0–30 cm in 2010. Oil cake applications increased soil porosity in 2010, as well as overall chlorophyll (SPAD values) and macronutrient concentrations in leaves in 2009 and 2010. Single and two-split applications stimulated water-sprout development, reduced the light intensity inside the tree canopy, and increased fruit drop. Fruit yield was higher in the two-split [24.7 metric tonnes (MT) ha?1] and three-split application trees (25.0 MT ha?1) compared to zero application control trees (19.8 MT ha?1) and single application trees (21.0 MT ha?1) in 2010. A single application resulted in soft fruit and slow skin colouration during maturation. Total soluble solids contents were higher in the control and three-split application trees in both years. The three-split application in 2010 increased the estimated production income by approx. 21% compared to the zero application, and by approx. 33% compared to a single application of oil cake. 相似文献
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为了明确适宜番茄生长的优质转光棚膜,以番茄品种‘金棚荣耀’为试材,研究比较了添加不同转光剂棚膜覆盖下,日光温室光环境及番茄植株生长发育和果实产量品质的影响。结果表明:与未添加转光剂的对照棚膜相比,覆盖转光棚膜明显改善了日光温室内的光照环境,且促进了番茄植株的生长,各生长指标均显著优于对照棚膜覆盖下植株,果实产量和品质也有大幅提升。其中,52号棚膜对促进番茄的生长发育和果实产量品质效果尤为显著。为日光温室番茄生产优质棚膜的选择提供参考依据。 相似文献
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Byeong-Sam Kim Mengmeng Gu Kyung-Chul Cho Seok-Kyu Jung 《The Journal of Horticultural Science and Biotechnology》2017,92(4):432-438
A study was conducted to evaluate the effect of branch and tree thinning on growth, yield and fruit quality in 8-year-old non-astringent persimmon (Diospyros kaki L.f.) trees in a high-density orchard over 6 years in Korea. Adjacent trees in the rows were removed in 2008 (first-year thinning) or in 2010 (gradual thinning). Trees in the second treatment also had 25% of the main scaffold branches removed in the first two seasons. Control plots were left unthinned. First-year thinning elevated leaf macro-nutrient concentrations, increased the production of short fruiting shoots (less than 20 cm) per tree, decreased water sprout development and weight of pruned biomass, and increased fruit set compared with values recorded on control trees and with gradual thinning. First-year thinning gave higher photosynthetic photon flux in the centre of the canopy and better fruit quality. There were generally only small differences in total yield across the three treatments in individual years, but much higher total marketable yield from 2010 to 2013 in the first-year thinning plots. First-year thinning improved overall tree productivity, and the gross returns were 80% higher than those of control from 2008 to 2013 when the extra cost of the thinning was taken into account. 相似文献
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Changhua Zhu Hao Jin Zhenfei Guo Guijun Li Kai Xia Zhigang Xu 《The Journal of Horticultural Science and Biotechnology》2016,91(2):196-202
Light triggered the initiation of amaranthin biosynthesis in cotyledons of Amaranthus mangostanus L. seedlings. Cytokinin induced amaranthin synthesis in the dark and increased the accumulation of amaranthin under light irradiation. No studies have explored whether indole-3-acetic acid (IAA) can affect kinetin-induced amaranthin accumulation in seedlings of A. mangostanus L. In this study, we found that IAA inhibited both the kinetin- and light-induced synthesis of amaranthin. In the dark, 10.0 mg l?1 IAA caused a 68% reduction in amaranthin production after induction by 5.0 mg l?1 kinetin. In the presence of light, 10.0 mg l?1 IAA resulted in a 50% decrease in amaranthin synthesis following induction by 5.0 mg l?1 kinetin. In addition, IAA could reverse kinetin-induced amaranthin accumulation under red, blue, or far-red light conditions. Our results suggest that IAA had an antagonistic effect on the light-induced or cytokinin-stimulated accumulation of amaranthin in the cotyledons of A. mangostanus L. seedlings. 相似文献
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Azucena Ascencio-Cabral Humberto Gutiérrez-Pulido Benjamín Rodríguez-Garay Antonia Gutiérrez-Mora 《Scientia Horticulturae》2008
Difficulties to develop an easy and reproducible protocol to get healthy and well formed plants from somatic embryos of papaya (Carica papaya L.) had included low germination, callus production at the base of the embryo radicle and the occurrence of hyperhydric plantlets among others, and by consequence unsuccessful transfer to the field. With the aim of improving a propagation method, the effects of light quality, gelling agent and phloridzin concentration on the germination of somatic embryos of hermaphrodite C. papaya L. var. Maradol were studied. Somatic embryos were grown on half strength MS medium, with the addition of Chen vitamins [Chen, M.H., Wang, P.J., Maeda, E., 1987. Somatic embryogenesis and plant regeneration in Carica papaya L. tissue culture derived from root explants. Plant Cell Rep. 6, 348–351], solidified with three distinct gelling agents: Sigma® Agar–Agar, Difco® Bacto agar and Phytagel®; supplemented with phloridzin and exposed to different light qualities: blue (54 μmol m−2 s−1), red (65 μmol m−2 s−1), gro-lux (68 μmol m−2 s−1), red + blue, white (32 μmol m−2 s−1) and wide spectrum (49 μmol m−2 s−1) during a period of 4 weeks. Results show that light quality and gelling agent had important effects on germination and plant growth, while 3.0 mg L−1 phloridzin had an important role on germination as well as in root development. Somatic embryos exposed to white light, culture medium solidified with 3.0 mg L−1 phytagel and 3.0 mg L−1 phloridzin showed longer roots. Meanwhile, germination and plant length were promoted on an improved culture medium solidified with 7.5 g L−1 Difco® Bacto agar, 3.0 mg L−1 phloridzin and exposed to gro-lux lamps. Under these conditions, 70% of somatic embryos germinated and developed normal roots without hyperhydricity. The regenerated plantlets with well developed roots and shoots were successfully transferred to a greenhouse with a survival rate of 95%. 相似文献