共查询到20条相似文献,搜索用时 62 毫秒
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石榴的常规扦插是将粗0.5~1.5cm的插条剪成长15—25cm的插穗.插于育苗畦中,成活后移植出圃。石榴属扦插易成活的树种.凡是健壮插条.插后保持土壤湿润.成活率可达95%以上。我们受地膜能保持水分和营养钵苗木的启发.于2008年春季进行了石榴粗干高杆扦插.成活率高达90%.具体方法如下。 相似文献
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ABT生根粉在林果业和花卉上的应用 总被引:2,自引:0,他引:2
ABT生根粉是一种广谱高效植物生根促进剂。用ABT生根粉处理插条 ,能促进插条 (特别是难生根植物 )不定根形成 ;在苗木移栽过程中 ,能促进受伤根系的恢复 ,提高成活率。1 应用效果应用 ABT生根粉育苗造林 ,刺槐、国外松等扦插育苗用生根粉溶液浸泡后 ,成活率达 80 %~ 1 0 0 % ;落叶松、樟子松、油松苗木用生根粉溶液浸根后 ,移栽成活率提高1 5 .5 %~ 2 3 .5 % ,造林成活率可达到 98%以上。山楂、葡萄、李子、樱桃、梨、苹果等果树扦插育苗 ,用生根粉溶液浸泡枝条 ,成活率达 80 %~ 1 0 0 % ;苹果、杏移栽用生根粉溶液浸根 ,成活率达 8… 相似文献
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《中国南方果树》2020,(3)
为了探索生根率高和节约化的油橄榄扦插育苗技术,设计了6种插床,对比了不同插床对扦插苗不定根及移栽苗生长的影响。结果表明,T4和T6处理缩小插床空间有利于提高床内温湿度,生根率可达98%以上;采用育苗袋扦插,受物理修根作用的影响,可控制不定根的生长方式,螺旋式根系质地柔韧,移栽不易折断,明显提高了移栽成活率。插床内架空,在空气修根作用下不定根生长到一定程度后受空气温湿度的影响而褐化,从而影响根尖生长,促使二级不定根生长,提高了根系质量和数量。该扦插方法单位面积出苗率是普通插床的2倍以上,基质可重复利用,节约了育苗成本;移栽后苗木抽梢早,枝梢长势强。因此,T4和T6插床可在生产中推广应用。 相似文献
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应用组织培养技术繁育树莓种苗可解决根蘖分株、埋土压条和扦插繁殖,出现生育周期长、苗木质量参差不齐、品种退化、繁殖速度慢等缺点。驯化成活率是组织培养技术能否应用到生产上的关键。高成活率可提高组培苗的利用率,降低生产成本。本试验研究树莓组培苗的生根方式、苗高度、根系长度、苗叶片数及遮光率对驯化成活率的影响。结果显示:双季2831根长为0~0.5 cm时将瓶苗移至驯化室开始驯化,长至组培苗株高2~3 cm,根系长度0.5 cm,2片叶时进行移栽;单季1132根长为0~1.0 cm时将瓶苗移至驯化室开始驯化,长至组培苗株高2~3 cm,根系长度0.5~1.0 cm,二三片叶时进行移栽,移栽后遮光率20%~30%。 相似文献
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多效唑调控辣椒幼苗试验 总被引:2,自引:0,他引:2
在辣椒3-4叶期,以浓度5-20mg/kg的多效唑喷雾或撒药土处理幼苗,视苗情施用1-2次,可促使发根,抑制茎叶徒长,有利于培育壮苗。但不能用于浸种,也不宜在辣椒3叶期以前施用。 相似文献
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The growth pattern of 20 cultivars of pineapple (Ananas comosus (L.) Merr.), with particular reference to propagules differentiation, was studied under uniform, natural conditions over a period of 3 years. The propagules, depending on cultivar, were “suckers” (arising from below the soil, rooted), “shoots” (arising between the leaves), “hapas” (arising from the peduncle-base) and “slips” (arising at the base of the fruits). A few cultivars produced no slips or only a limited number of slips. In addition to the normal adaxial slips, abaxial slips were sometimes formed. “Crown slips” (arising at the top of the fruit) were occasionally encountered. Regular hapas production was confined to 2 cultivars. Marked variation existed in the pattern of shoot formation. Whereas in the majority of plants, shoots were found at regular intervals along the stem, in 2 cultivars the shoots grew as whorls at the base of the stem. Suckers were produced by all cultivars, with one prominent exception. The crown was most often single, but occasionally multiple and fasciated. Whereas bolting almost invariably preceded inflorescence emergence, in a few cases bolting was not followed by flower formation. The inflorescences of 2 cultivars constituted an exception in not having normal types of pigmentation. There were cultivar differences in the number of florets in an inflorescence. Many of the cultivars showed a distinct tendency for photoperiodic sensitivity. 相似文献
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