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[目的]为了筛选出寡日照地区早熟、高产、优质的茄子品种,促进毕节地区设施蔬菜的快速发展。[方法]从国内外引进4个茄子新品种[红力线茄(引自云南)、黑美丽长茄(引自荷兰)、布利塔(引自荷兰)、红力面包(引自以色列)]进行比较试验,以毕节地区生物性状和产量均表现良好的大龙长茄作对照。[结果]红力线茄的开花期、结果期、采收期较晚,果实口感和品质一般,产量低,不建议在寡日照地区推广使用。红力面包的开花期、结果期、采收期较早,果实口感好,品质细嫩,但产量低,在毕节地区市场销售情况一般,只可作春季早熟品种推广使用。黑美丽长茄果皮紫黑色,光泽度好,外观光滑漂亮,品质好,肉质雪白,外皮极薄,口感细嫩而糯,丰产性良好,在毕节地区销售市场受欢迎,可作寡日照地区品种推广种植。布利塔植株生长势强,株型半直立,株型较大;中早熟,果实纺锤形,纵径35.2cm,横径7.9cm,平均单果重405.6g,果皮紫黑色,且最亮泽,果肉雪白色,皮薄,品质佳;产量可达75630.15kg/hm2,无畸形果,商品性好,是一个优质高产品种,特适合寡日照地区种植。[结论]黑美丽长茄和布利塔可在寡日照地区推广种植,而红力面包在寡日照地区仅可作春季早熟品种推广使用。 相似文献
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论快速贴面压机机组的总体设计 总被引:1,自引:0,他引:1
本文讨论了单层贴面压机设计时必须考虑的主要技术问题:如机架、热平板、油缸及其布置、加热系统、液压系统等问题,以满足低压短周期贴面法快速、高温的工艺要求。 相似文献
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寡日照下甘蓝型油菜某些光合生理特性的初探 总被引:3,自引:0,他引:3
针对重庆市油菜生产的生态特点,对部分具有特殊意义的育种材料、优质亲本和它们的组合的光合特性进行了初步分析。结果表明两个新型双重不育系在阴天的光合强度显著低于核不育系,而与胞质不育系无显著差异,晴天的光合强度却显著高于它们的保持系和原始亲本L17A,双重不育系光合强度的特殊表现与它们的叶绿素含量及a/b比值无关,甘蓝型菜籽油菜的光合强度低,产量较低,原因不只在叶绿素含量,还与其他因素有关;在亲本与组 相似文献
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Zhang Qingwen 《保鲜与加工》1994,(1)
This paper intreduces a survey station of measuring daylight and solar irradiancein Chongqing.It has been set up for responding to the International Dayllght Year.From the ways ofmeasuring place,instruments,data and results,etc. the station has run successively in two years tomeasure eleven data about irradiance and illumination etc. by automatic measuring systems.A vastamoun t of scientific data is collected and these firstha nd reliable in formations are provided to day-light climates research in Chongqing.Both data results and measuring means corne up to advancedworld standards.Modern science and technology are successfully applled to daylight measuring andresearch. 相似文献
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短日照处理对草莓花芽分化的影响 总被引:1,自引:0,他引:1
[目的]为张家口坝上地区草莓栽培制定适宜的管理措施提供理论依据。[方法]以3个一季性、1个四季性草莓品种为材料,采用黑膜进行短日照处理,对照不加盖黑膜,研究短日照处理对草莓花芽分化的影响。[结果]短日照处理对一季性草莓品种的花芽分化有促进作用,使花芽分化提前5 d,而对四季性草莓品种花芽分化的影响不大。8月29日短日照处理各草莓品种的40%~60%开始花芽分化,9月3日对照花芽分化开始。四季性草莓品种无论是对照还是处理,每次观察都能看到花芽分化的各个时期。[结论]短日照处理促使一季性草莓品种的花芽分化提前5 d,可以用来调控坝上地区草莓的花芽分化。 相似文献
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Daylighting is one of the important aspects of sustainable building, but architectural daylighting in China is obstructed because of shortage of daylight meteorological measurement record. However, there are many data of solar irradiation. Therefore solar irradiance values are used to calculate outdoor illumination values. Luminous efficacy is introduced to show the relation between solar irradiance and outdoor illumination. Sunny index is used to represent the meteorological states of the sky. On the basis of measurement data in Chongqing from 1991 to 1992, new luminous efficacy calculation model is built to obtain the outdoor global illuminance values and the diffuse illuminance values. Measurement data in Chongqing in 1993 is used to evaluate the proposed mode, which shows the proposed models are reliable. In order to prove possibility of calculating illuminance in other places in China, the measurement data records of annually average global illuminance values in 32 cites are used to examine the calculation results. If the real-time solar irradiation data was input, the real-time illuminance values could be obtained with this model in China, thus millions of illuminance values could be used in future daylighting design. 相似文献
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首先研究了苎麻嫩枝扦插繁殖的机理。阐明了水分动态平衡;光合作用和有机营养;内源激素和外源激素之间的关系;温度效应;扦插介质的理化性质和探索了苎麻嫩枝不定根发生的组织学变化。然后,按照这些试验结果建立了苎麻嫩枝喷雾全光照扦插繁殖技术。而且进一步发展为工厂化育苗。这是苎麻无性繁殖的新途径。 相似文献
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通过对草莓花芽分化的调控和观察,结果表明,张家口坝上草莓花芽分化在9月3日至8日开始,采用黑膜进行短日照处理,使一季性品种花芽分化提前5 d,对四季性品种花芽分化影响不显著. 相似文献