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发展葡萄生产是北方农牧民增加收入、改善生活的有效途经。嫁接是葡萄品种更新换代和提高抗寒能力的有效方法。采用适应性强且结实量高、品质优的葡萄品种硬枝做接穗,用贝达或山葡萄硬枝做砧木进行嫁接,用木锯末做基质,在农村的火炕上对嫁接苗进行催根。此种葡萄育苗方法简单易行,我们称之为葡萄“硬枝嫁接,火炕催根”技术。 相似文献
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着水晶葡萄成为大众化优质水果,贵州省三都县水晶葡萄种植也越种越多。然而,由于管理技术欠缺,不能达到优质高产的要求。基于此,根据近年来对水晶葡萄的培育管理,笔者结合三都县的土壤、气候、地理等多种因子进行分析,谈谈水晶葡萄在三都县要达到高产目标的一些基本看法。 相似文献
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本文以2011年5月16日中国农学会葡萄分会和台湾21世纪农业发展基金会在福建省福安市召开的海峡两岸葡萄科技合作恳谈会为契机,总结了台湾目前葡萄种植的五项关键性技术,旨在推动海峡两岸葡萄栽培技术交流与合作,使福建省葡萄产业得到更好发展。 相似文献
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70年代以来,塑料大棚容器育苗技术(以下简称大棚技术)在我国有了较快的发展,与常规育苗相比,它具有出苗早、造林成活率高等优点。目前对大棚容器育苗技术的研究,多集中于培养基质、容器类型、规格等方面,但对大棚条件下,环境变化与苗木生 相似文献
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Black spruce (Picea mariana [Mill.] B.S.P.) overwintered container crops produced in four container types spanning a range of container sizes and seedling rearing densities were compared for two consecutive years. In 1989 two growing environments (greenhouse and outdoors) were compared. In 1990 three growing environments (greenhouse, coldframe, and outdoors) and two hardening regimes (short day and natural) were compared. Seedlings were outplanted during the spring of 1989 and 1990 and total height and survival were assessed for five years.The outdoor-grown crop was shorter, smaller in root collar diameter and had less dry weight at time of planting than the crops produced in the greenhouse (1989 study) and in the greenhouse and coldframe (1990 study). Although the greenhouse crops in both studies were larger at time of planting, the outdoor-grown crops (1989 and 1990) and coldframe-grown crop (1990) displayed significantly greater annual height increment in the first two years after planting. The enhanced early height growth of the outdoor-grown crops may be due to the natural acclimation created by their growing environment.Seedlings grown in a large volume container, at a low plant density (441 plants/m2), had significantly larger root collar diameters and total dry weights at time of planting than seedlings grown in a smaller volume container at a high plant density. Stem volume production in the field was greater on seedlings from larger volume containers grown at low densities. 相似文献
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北方温室内蚧虫有6科51种,其中,以盾蚧科、粉蚧科、蚧科种类为主。植物以多年生、常绿、木本种类受害严重;温室以永久性观赏型和管理粗放的类型蚧害严重;蚧虫以多世代、多食性种类发生严重,并且具有世代重叠、发生量大、蔓延快的特点。最后提出了温室蚧虫的治理对策。 相似文献
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日光节能温室内种植的矮甜李选择授粉方法是获得高产的关键。通过人工点授、自然授粉、室内放蜂、液体授粉 4种方法的对比 ,总结出 4种授粉方法的坐果率为人工点授 (3 1 .0 7% ) >室内放蜂 (2 1 % ) >液体授粉 (9.5 3 % ) >自然授粉 (0 .1 6% ) ,从试验结果看出 ,保护地种植矮甜李必须进行辅助授粉 ,否则无产量。从经济、快捷、简便的角度出发 ,以室内放蜂为最佳授粉方法 ,放蜂量为 1 0 0 0头 /棚。 相似文献
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Plants utilize two general strategies to cope with pathogen attack. They either limit or resist the pathogen (termed ‘resistance’) or they cope with the disease by surviving and growing (termed ‘tolerance’). Both strategies tend to increase plant fitness; however, there are possible costs, trade‐offs and interactions associated with each strategy. This study focused on five half‐sib interior Douglas‐fir families [Pseudotsuga menziesii var. glauca (Beissn.) Franco] that were putatively classified as either resistant or susceptible to Armillaria ostoyae in a previous greenhouse study of seedling families challenged with A. ostoyae. We compared their survival rates in the greenhouse study with results of juvenile trees from the same five families that were artificially inoculated in field conditions. Both resistance and tolerance appeared to be operating in the field test trees, and a possible trade‐off between resistance and tolerance was detected. Significant differences were detected among the five families for stem radial growth following infection at the tree root collar. Compared with the putatively susceptible families, resistant families had smaller lesions and lower proportional root collar girdling. Tolerant families generally had larger lesions but demonstrated better growth when diseased than resistant families. One tolerant family that was a good survivor in the greenhouse survival study presented vertically shaped lesions that were large in area but had greatly reduced proportional root collar girdling. While a second family showed tolerant traits in the field study, its poor survival in the greenhouse study agreed with the large horizontally spreading lesions associated with high root collar girdling in the field study trees. Survival rankings of the five families in the greenhouse study mostly agreed with results from the field study based on the proportion of collar girdling among families. These host responses are discussed with respect to stability, quantity and quality of stands and products. 相似文献
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本试验采用无菌落雪泥为材料,分别对试管苗诱导、增殖和生根条件进行了初步研究。结果表明:诱导叶片分化的最佳培养基为:MS+6-BA2.0mg/L+NAA0.2mg/L;最适的增殖培养基是MS+6-BA2.0mg/L+NAA0.1mg/L;生根的培养基:1/2MS+IBA0.4mg/L。在自动控制温室中,落雪泥始终处于高湿度、恒温环境中,草炭土是最适宜移栽的基质。在简易大棚中,落雪泥生活在湿度、温度不恒定的环境中,珍珠岩是最适宜移栽的基质,生根苗有100%的成活率。本试验为农民产业化生产落雪泥提供了理论依据和技术支持。 相似文献