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权问薇
2018年05月05日
权问薇
[图片]温度 它对温度的承受能力超乎我们想象，，只要温度没有在零下十度以下，它就能够正常生长。我们也知道它的播种还有扦插都不需要二十度，甚至可以低到五度仍能正常发芽，由此可见温度并不是多么大的问题了。 [图片]光照 它是半喜欢阳光半喜欢黑暗的植物，由此可知，如果没有太阳的话也不用着急，只不过有了太阳还是要让它晒到。因为冬日阳光并不大，所以可以把它放在外面晒，如果阳光比较大的话，那我们可以把它移到房间里或者阳台上能够见到阳光的地方。 浇水 它对干旱的承受能力也是比较强大的，而且如果它干旱的话，花会开的更多一些。但是如果土壤干掉了，我们还是要给它浇一些水，只不过土没有干的话，还是不要轻易浇水的好。 [图片]通风 在冬天我们还是不要让它待在太通风的地方，因为它的节间比较脆弱，如果风比较大的话很有可能导致它折断，而且就算没有断的话，叶子的小命也很难保，所以一旦刮风我们还是考虑把它移到无风处。 [图片]
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权问薇
2018年05月05日
权问薇
[图片]缺水引起的 很多人都知道它很怕湿润，所以就会长时间忘记给它浇水，导致植株水分不足，从而叶子也就变得发蔫，开始下垂。那此时就需要我们观察盆土情况，如果盆土颜色已经发白，并用手触摸后，发现盆土很硬，这就说明要给它浇水了，浇水时，也不可猛浇，细水长流，将它浇透了，过不了几天叶子就会有精神了。 [图片]缺少光照引起的 家养植物时，最怕的就是室内过于阴凉，清香木也是如此，如果你长时间将它放置在阴凉处，就会引起光照不足，它的叶片本身就较薄，叶脉也细，所以此时就会因为支撑不住而开始下垂。那我们就要给它增加光照时间了，尽量避免让它长时间处于阴凉处，并及时通风，这种现象马上就会好转起来了。 病菌危害引起的 养护时，因为我们的照顾不周，有时就会有病菌侵袭它，这样就给植株带来极大的伤害，其中最严重的就是叶子。因为如果受到病害或虫害侵扰，叶片的生长就会受阻，生长方向发生变化，也会让叶子下垂的。那此时我们就应该检查病虫害，并及时预防和治疗。 [图片]缓苗期引起的 如果你是刚从市场将它买回来的，那叶子下垂也属于正常现象。因为环境变化致使它有一段的缓苗期，它需要重新调整自己去适应另一个环境，所以叶子才会暂时下垂。那此时我们无需做什么，只要将室温度尽量调整为它原先所处环境的温度，让它慢慢进行缓和即可。 [图片]
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权问薇
2018年05月05日
权问薇
[图片]扦插时间 扦插时，可以在春、秋季节进行，正常开花时间是在春天。 插条的准备 在它的植株处于休眠期时，我们可以选取长势好的母株，在上面选取健康枝条，将其截成10到15厘米的插条，上面的切口地方要距离芽点为1到1.5厘米，下面距离0.3到0.5厘米即可。 [图片]处理插条 插条截好之后，要用生根粉将伤口处浸泡一下，浸泡时间为12到24小时，这样就可以促进根之后的生长。 准备基质 扦插前，我们要将扦插的土准备好，通常透气好、保水适中的酸性或者中性土壤就可以了，这边建议以河沙最好，因为它会大大增加它的成活率。基质准备好之后，要对它进行杀毒后才可使用。 [图片]扦插植株 插条插入到土壤之前，我们要先在土壤上挖一个沟，然后将插条埋在里面，深度为插条的一半多最好。插好之后，找来薄膜盖在上面，主要是为了将空气的湿度提高一些，接下来就需要我们细心管理了，如果管理恰当，插条正常在45天左右就会开始生根了。 [图片]
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Miss Chen
2018年05月04日
Miss Chen
Description: This plant is a winter annual or biennial up to 2½' tall that branches occasionally. A few basal leaves are produced during the fall, while alternate cauline leaves develop along the stems during the following spring. The stems are green, glabrous, and terete. The leaves are up to 4" long and ¾" across; they are pinnately compound with 3-15 leaflets. The leaflets are linear, oblanceolate, obovate, or orbicular in shape, becoming more narrow on the upper leaves; their margins are usually undulate, shallowly lobed, or dentate with a few blunt teeth. On each leaf, the terminal leaflet is as wide or wider than the remaining leaflets. Both the lower and upper sides of the leaves are green and glabrous. The upper stems terminate in racemes of small white flowers. Each flower is about 3 mm. (1/8") long, consisting of 4 white petals, 4 light green sepals, a stout pistil, and several stamens. The mature pedicels (5-9 mm. in length) ultimately become longer than the flowers. Both the pedicels and the central stalk (rachis) of the raceme are green and glabrous. The blooming period occurs from mid-spring to early summer and lasts about 1-2 months. Each flower is replaced by a narrowly cylindrical seedpod (or silique) that is up to 1¼" long. The siliques are relatively straight and they spread outward slightly from the central stalk of each raceme. The tips of young siliques often surround the flowers and partially obscure them. Each silique contains a row of tiny seeds; these seeds are about 1 mm. in length, oblongoid-ovoid in shape, and brown. The root system consists of a tuft of shallow fibrous roots. This plant spreads by reseeding itself. [图片]Cultivation: The preference is light shade to partial sun, wet to moist conditions, and soil containing loam or sandy loam with decaying organic matter. This plant develops quickly during the spring when the weather is cool and moist. Range & Habitat: The native Pennsylvania Bitter Cress occurs occasionally in most areas of Illinois; it tends to be less common or absent in the NW corner of the state (see Distribution Map). Habitats include wet to mesic deciduous woodlands (especially floodplain and bottomland woodlands), swamps, shady seeps and springs, the bottom of cliffs, low ground near streams, and areas along woodland paths. Pennsylvania Bitter Cress is occasionally found in slow-moving water of seasonal ditches and shallow streams, where it resembles an emergent-aquatic plant. This plant is found in both higher quality habitats and disturbed areas where there is partial to light shade and the ground is more or less moist. It is sometimes found in sandy areas where decaying organic material is abundant. [图片]Faunal Associations: Occasionally, small bees or flower flies (Syrphidae) visit the flowers, otherwise they attract few visitors. Caterpillars of the moth Evergestis pallidata (Purple-Backed Cabbage Worm) are known to feed on the foliage of Cardamine spp. (Bitter Cresses), while caterpillars of the butterfly Anthocharis midea (Falcate Orangetip) feed on the flowers, buds, and developing seedpods of these plants. Two aphids, Myzus cerasi (Black Cherry Aphid) and Rhopalosiphonius staphyleae (Mangold Aphid), use these plants as summer hosts. Information about floral-faunal relations for vertebrate animals is currently unavailable. Photographic Location: Near or in a stream of a sandy woodland at the Indiana Dunes State Park in NW Indiana. [图片]Comments: This spring wildflower of woodlands is not very showy and it is often overlooked. This plant has a similar appearance to other Bitter Cresses (Cardamine spp.) with small white flowers, including Cardamine hirsuta (Hairy Bitter Cress) and Cardamine parviflora arenicola (Small-Flowered Bitter Cress). Hairy Bitter Cress, an introduced species, is hairy toward the base and it has abundant basal leaves while the flowers are blooming. Pennsylvania Bitter Cress has very few, if any, basal leaves while the flowers are blooming, and its foliage is completely hairless (at least in Illinois). Small-Flowered Bitter Cress is usually a little smaller in size than Pennsylvania Bitter Cress and it has more narrow leaflets (up to ¼" across). The terminal leaflets of this species are about the same size as the non-terminal leaflets. Small-Flowered Bitter Cress is usually found in habitats that are drier and sunnier than Pennsylvania Bitter Cress, although it is occasionally found in moist woodlands and wetlands as well.
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Miss Chen
2018年05月04日
Miss Chen
Description: This perennial wildflower is 4-12" tall and unbranched, except for possibly 1-2 flowering side stems near the apex. The erect central stem is light green to purplish green, terete, and hairy. At the base of each plant, 1-2 basal leaves are commonly present; they are about 1" long and across,Close-up of Flowers cordate-orbicular, and bluntly dentate or undulate along their margins. Each basal leaf has a long slender petiole. The alternate leaves are up to 2" long and 1" across; they are oval-ovate to oblong, bluntly dentate or undulate along the margins, and ciliate. At the base, the alternate leaves are sessile or slightly clasp the central stem. The alternate leaves become slightly shorter and more narrow as they ascend the stem. The central stem terminates in a raceme of flowers. The flowers and buds are concentrated toward the apex of the raceme, while cylindrical seedpods (siliques) develop along the remainder of the raceme. Each flower is about ½–¾" across, consisting of 4 petals, 4 sepals, several stamens, and a single stout style of the pistil. The petals are pale purple or purple-tinted white and obovate in shape. The sepals are purple, hairy, and membranous-white along their margins. The petals are much longer than the sepals. The blooming occurs during mid-spring and lasts about 2 weeks. The flowers are fragrant. Each flower is replaced by an ascending silique up to 1" long. The 2-valved siliques are green to purple; each silique contains a single row of seeds and it has a stout pedicel up to 1" long at its base. Eventually, the silique splits in half lengthwise to release the seeds. The root system is fibrous and tuberous. Cultivation: This wildflower develops early during the spring when it receives dappled sunlight from its location underneath deciduous trees. It likes an evenly moist site with fertile loamy soil and abundant leaf mold. By the beginning of summer, it has already died down and released its seeds. Range & Habitat: The native Purple Cress is occasional in NE and east central Illinois, but it is rare or absent elsewhere in the state (see Distribution Map). Habitats include moist deciduous woodlands, low wooded valleys, and areas along shaded seeps and springs, particularly where limestone comes close to the surface of the ground. This conservative species is normally found where the original ground flora is still intact. It is one of the spring wildflowers in woodlands that is threatened by the spread of Alliaria petiolata (Garlic Mustard). [图片]Faunal Associations: Records about floral-faunal relationships for this species are limited. Insect visitors of the flowers are probably similar to those of a closely related species, Cardamine bulbosa (Spring Cress), which blooms only a little latter and occupies similar habitats. These insects include various kinds of bees (honeybees, mason bees, Andrenid bees, Halictid bees), bee flies (including Bombylius major, the Giant Bee Fly), other miscellaneous flies, and butterflies that appear during the spring. Most of these insects suck nectar from flowers, although some of the bees and flies also seek pollen. An oligolectic flea beetle that prefers woodland habitats, Phyllotreta bipustulata, feeds on the foliage of Purple Cress; it also feeds on the foliage of Dentaria spp. (Toothworts). Mammalian herbivores rarely feed on this wildflower because its foliage is short-lived and unpleasant-tasting (bitter and spicy). Photographic Location: Along a shaded seep in Vermilion County, Illinois. Comments: This is another lovely spring wildflower of the woodlands. Purple Cress is similar to Cardamine bulbosa (Spring Cress), except that the latter has flowers with white petals and green sepals. Spring Cress also has a glabrous central stem, while Purple Cress has a hairy stem. In contrast to Dentaria spp. (Toothworts) and many other Cardamine spp. (Bitter Cress species), both of these wildflowers lack compound leaves that are pinnately or palmately divided. Another species of the Mustard family, Iodanthus pinnatifidus (Purple Rocket), produces pale purple flowers on long racemes in damp wooded areas. However, Purple Rocket is a larger plant that blooms later in the year (late spring to mid-summer). Other common names of Cardamine douglassii are Purple Spring Cress and Northern Bitter Cress.
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Miss Chen
2018年05月04日
Miss Chen
Description: This perennial wildflower is ½–1½' tall with an erect stem that is unbranched or sparingly branched toward the apex where the inflorescence occurs. The central stem is medium green, glabrous, and terete; it occasionally has fine longitudinal ridges. There are both basal leaves and alternate leaves. The blades of the basal leaves are up to 1¼" long and 1" across; they are oval to orbicular in shape,Raceme of Flowers medium green, glabrous, and smooth or undulate along their margins. The slender petioles of the basal leaves are usually longer than the blades. The alternate leaves are produced sparingly along the central stem; they are up to 2" long and 1" across, medium green, and glabrous. The alternate leaves are oblong-ovate in shape and their margins are smooth, undulate, or bluntly dentate; at the base, each alternate leaf is sessile or short-petioled. The central stem terminates in a raceme of flowers; the flowers usually bloom in the upper half of the raceme, while their siliques (narrowly cylindrical seedpods) develop below. Each flower consists of 4 petals, 4 sepals, 6 stamens, and a pistil with a single style; when the flower is fully open, it spans about ½" across. The petals are white with rounded tips. The glabrous sepals are initially green, but they become yellow as they age. The petals are much longer than the sepals. Each flower has a slender pedicel about ½" long. The blooming period occurs from mid- to late spring and lasts about 3 weeks. The flowers are sometimes fragrant. Each flower is replaced by a slender hairless silique about 1" long that is somewhat flattened. The siliques are ascending to erect; they eventually divide into two parts to release their seeds. These seeds are ovoid, somewhat flattened, and wingless; they are arranged in a single row in each silique. Each plant has a swollen tuberous rootstock at the base of the central stem; this tuberous rootstock has spreading fibrous roots that occasionally produce small tubers. New plants are created from either the seeds or tubers. Cultivation: The preference is partial sun or dappled sunlight, wet to moist conditions, and a loose fertile loam with organic material. Shallow standing water is tolerated if it is temporary; full sun is tolerated if the ground is consistently moist. Most growth and development occurs during the spring before the canopy trees leaf out. Range & Habitat: The native Spring Cress is occasional to locally common in most areas of Illinois; it is less common or absent in the SW section of the state (see Distribution Map). This species may be less common than in the past. Habitats include low woodlands along rivers, edges of vernal pools in woodlands, damp depressions in rocky bluffs, woodland seeps and springs, and damp meadows. [图片]Faunal Associations: The nectar of the flowers attracts cuckoo bees (Nomada spp.), mason bees (Osmia spp.), little carpenter bees (Ceratina spp.), Halictid bees (Augochlorella spp., Halictus spp., & Lasioglossum spp.), Andrenid bees (Andrena spp.), bee flies (Bombylius spp.), dance flies (Empis spp.), Syrphid flies (miscellaneous), small- to medium-sized butterflies (miscellaneous), and skippers (miscellaneous). Some of the bees also collect pollen. The flea beetles Phyllotreta oblonga and Phyllotreta bipustulata feed on Spring Cress and other Cardamine spp. (Bitter Cress species). Mammalian herbivores usually avoid the consumption of Spring Cress because its foliage is pungent and somewhat bitter. Photographic Location: A low woodland along the Sangamon river in Piatt County, Illinois. Comments: Spring Cress is one of the more attractive members of the Mustard family as its flowers are fairly large (spanning about ½" across). This wildflower favors the more damp areas of woodlands and it is sometimes found in soggy meadows. Another native species, Cardamine douglassii (Purple Cress), is very similar to Spring Cress. Both species prefer similar habitats, bloom during the spring, and their flowers and foliage are similar to each other. Purple Cress differs from Spring Cress by the purplish-pink tint of its flower petals, sepals that are dark purple and hairy, and stems that are hairy toward the base. It has a tendency to bloom about 2 weeks before Spring Cress. Other Cardamine spp. (Bitter Cress species) in Illinois have either smaller flowers (about ¼" across or less) or at least some of their leaves are deeply divided into lobes (either pinnately or palmately). Spring Cress (and other species in the genus) isn't classified as an Arabis sp. (Rock Cress) because of its wingless seeds; the seeds of Rock Cresses have winged membranous margins of varying widths.
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Miss Chen
2018年05月04日
Miss Chen
Description: This plant is an annual or biennial from 2-6' tall. Usually, it is unbranched, although sometimes a few side stems will develop from the lower central stem. The central stem is light green, terete, slightly grooved, and hairy. The alternate leaves are up to 6" long and 2" across, tapering to slender petioles. They are medium to dark green, elliptic to ovate in shape, and their margins are serrated. The texture of the leaves is somewhat rough; they are hairy along the major veins of their undersides. The central stem terminates in a spike of flowers about ½–2' long. From the axils of the upper leaves, secondary spikes of flowers may develop, but these are much shorter (about 1–6" in length). The rachis (central stalk) of each spike is similar to the central stem. The flowers are about 1" across; their corollas vary in color from light to dark violet-blue, depending on the local ecotype. Each corolla has 5 spreading lobes that are divided nearly to the base; they are ovate to obovate in shape. Each corolla has a satiny appearance under bright light, and it tends to have margins that twist and curl. The corolla is often white toward the center, rather than blue-violet. At the center of the corolla is the apex of a 5-angled ovary from which a light violet style is strongly exerted. This style bends downward from the flower, but curls upward near its tip; the small stigma is white and divided into 3 lobes. Each flower also has 5 stamens. The light green calyx is tubular-campanulate in shape with 5 narrow green ridges and 5 long narrow teeth around its upper rim; these teeth curl backward when the flower opens. The blooming period occurs from mid-summer to early fall, lasting about 1½ months. Afterwards, the flowers are replaced by seed capsules that are 5-angled and rather flat-topped. The root system consists of a taproot. [图片]Cultivation: The preference is light shade to partial sun, moist to mesic conditions, and a rich loamy soil. During a drought, this plant often drops its lower leaves. Depending on moisture conditions and the fertility of the soil, the size of this plant can be highly variable. Range & Habitat: American Bellflower is a common plant that occurs in most counties of Illinois (see Distribution Map), where it is native. Habitats include moist to slightly dry deciduous woodlands, disturbed open woodlands, woodland borders, and thickets. This plant is often found along woodland paths, and it appears to prefer slightly disturbed areas. [图片]Faunal Associations: Long-tongued bees are the primary pollinators of the flowers, including bumblebees and leaf-cutting bees (Megachilidae). Among the latter, is the oligolectic bee Megachile campanulae campanulae. Other visitors of the flowers include Halictid bees, butterflies, and skippers. These insects seek nectar, and some of the bees collect pollen from the anthers. Syrphid flies may feed on the pollen, but they are not effective pollinators. Deer occasionally eat the flowers and foliage. Photographic Location: The edge of a wooded area at Crystal Lake Park in Urbana, Illinois. [图片]Comments: Sometimes this plant is called "Tall Bellflower." The older scientific name is Campanula americana, but it has been reassigned to its own genus because of the unique structure of the flowers. The flowers of this tall-growing plant are showy, but individually short-lived. However, new flowers are produced in succession higher up on the spike. The other members of the Bellflower family that occur in Illinois, whether native or introduced, have bell-shaped (campanulate) flowers, while the flowers of the American Bellflower have a more open design with widely spreading lobes. As a result, this species is easy to identify.
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Miss Chen
2018年05月04日
Miss Chen
Description: This annual plant consists of sprawling stems with pairs of opposite leaves. The stems are up to 5 cm. (2") long; they are whitish green and occasionally branch. The opposite leaves are 3-4 mm. long and about half as much across; they are medium green, ovate-oblong or obovate-oblong, and smooth along their margins. Each leaf tapers to a short petiole. There are separate male and female flowers on each plant (monoecious) at the axils of the leaves. These flowers are very small (less than 1/8" across) and greenish. Each male flower produces a single stamen, while each female flowers produces a single pistil with a pair of styles. These flowers have neither petals nor sepals. The blooming period occurs from late spring to mid-summer and lasts 1-2 months. The fruit of each female flower is 4-celled; it has a double-ovoid shape (similar to the fruit of a Galium sp.) and a short peduncle. Each cell of the fruit contains a single nutlet. This plant reproduces primarily by reseeding itself; it can reproduce vegetatively by forming rootlets at the axils of the leaves. Cultivation: The preference is light shade to dappled sunlight, moist to dry-mesic conditions, and barren soil that is devoid of competing ground vegetation. This plant is often found on compacted soil containing clay, glacial till, or rocky material. Range & Habitat: The native Terrestrial Starwort occurs occasionally in the southern half of Illinois; it is largely absent in the northern half of the state (see Distribution Map). Habitats include barren areas of hilly upland woodlands (particularly those that are dominated by oaks), edges of bluffs, footpaths in wooded areas, shaded gravelly seeps, and rocky riverbanks. Faunal Associations: Information about floral-faunal relationships for this species is unavailable. [图片]Photographic Location: Along a bluff in Vermilion County, Illinois. Comments: This is probably the smallest terrestrial flowering plant in Illinois (Lemma minor, or Lesser Pondweed, is even smaller, but it floats on water). To see the flowers and fruits near the axils of the leaves, a 10x hand lens is required. Terrestrial Starwort resembles a low-growing moss, but it is more leafy in appearance. Other species in this genus are submerged or emergent aquatic plants; these Callitriche spp. are referred to as Water Starworts, and they are small in size as well. The submerged leaves of these latter species are linear in shape, but their emergent leaves resemble those of Terrestrial Starwort. While the fruits of Terrestrial Starwort have short peduncles, the fruits of Water Starworts are sessile, or nearly so.
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Miss Chen
2018年05月04日
Miss Chen
家庭养殖仙人掌时会因浇水不当，造成其植物根部腐烂等，例如观赏价值较高的金琥类多肉，若它们出现腐烂情况那是非常可惜的。今天小编就给大家分享一下防止腐烂的方法，及腐烂后该怎样正常处理。 [图片]一般来说，若仅星点腐烂，可用利刃将腐烂部连带少许健康组织一并切除，涂抹草木灰后放干燥阴凉处晾干即可（每切一刀将刀刃消毒一次），对腐烂呈窝状者，则应清除烂肉，按以下方法处理： 方法一，用70％甲基托布津可湿性粉剂等药剂直接均匀撒布于腐烂部位至不湿，同时将95％敌可松可溶性粉剂2克至3克，拌于盆内球体根部0.5厘米至1厘米厚的表土中，然后撒细土面或沙面覆盖。若盆内表土过干可浇少许水至药粉湿润。然后放阴凉干燥处，待结干皮且通体无病害后恢复正常管理。 方法二，将腐烂组织清除后，撒生石灰灼烧烂部，边撒边清除，反复两三次，然后放阴凉通风干燥处晾至干皮。若是夏季也可于炎热晴天正午取晒热的土面或沙面撒于烂部至见健康组织，撒后清除，反复两三次，最后撒施不予清除，然后放阴凉通风干燥处至结干皮且通体无病害时恢复正常管理。 方法三，若球体多处腐烂甚至空心，只要中间髓健康，脱盆后尽量清除烂肉，然后用1％硫酸铜或0.5％高锰酸钾液等反复冲洗病部消毒，必要时浸泡在消毒液中冲洗。或用50％复方甲基硫菌灵可湿性粉剂500倍液浸泡球体2小时，放阴凉通风干燥处至结干皮且不再腐烂后，重新定植。 [图片]注意： ①一旦发现球体腐烂，除严重腐烂者外，均应按照方法一施敌克松粉剂对盆土消毒。 ②保持环境温度15℃以上，25℃至30℃ 最适合。 ③新植盆土均应拌入杀菌剂如95％敌可松可溶性粉剂进行消毒，且种植后不浇水，放置于相对湿度在60％以上的室内即可。 ④对健康仙人球冬季温度不能低于10℃，夏季喷水宜在中午进行，防止渍水难干使球体腐烂，可每半月喷施70％甲基托布津可湿性粉剂1000 倍液，根施敌克松可溶性粉剂500倍液一次，但冬季根部施药只需一两次。平时保持盆土微湿即可。
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Miss Chen
2018年05月04日
Miss Chen
蝴蝶兰为兰科蝴蝶兰属，多年生常绿附生草本花卉。由于其花朵形似蝴蝶，具有蝴蝶般的美丽，故名蝴蝶兰。蝴蝶兰的品种繁多，花形和花色富于变化，花姿十分美观，深受人们的喜爱。因此，是世界上栽培最广泛的洋兰。 蝴蝶兰生长周期长，在自然界，由小苗至开花约需要3～4年时间。在良好的人工栽培条件下，延长每日受光至14小时，将晚间温度维持在21℃左右，并加强水肥管理，可缩短由小苗至开花的时间，从小苗到开花约需1～2年。多数蝴蝶兰品种于春季开花，也何夏季开花的；花梗自叶腋中抽出，上着生数朵花，依次开放，每朵花可开放一个多月。 [图片]一. 非化学法 1. 光量控制法 蝴蝶兰于低光状态往往形成太长的花梗，如果盆器放置过于密集而影响光量，也容易产生太高的花梗。相反地在高光量下则得到短而结实的花梗。一些蝴蝶兰在10,000 lux以上的光量环境，叶绿素含量减少，二氧化碳吸收量增加，气孔开度与蒸散率也增大。荷兰温室减少光量的方法有使用遮荫布、在屋顶喷白漆、在墙壁施用反射物质等。 利用光质调整也可以影响花梗长度，增加红光与紫外光B的透光比例可抑止花梗过长。因此温室披覆材料使用塑料布可以藉以调节光质，玻璃则无法改变光质。 2. 给水 蝴蝶兰的根系应维持于高湿的环境。如果植株处于水应力（缺水）状态，则阻缓作物成长因此可缩短花梗。但是处于缺水状态对于植物是一种逆反应，花梗容易枯萎。 3. 给肥 以养份应力（尤其降低磷肥）可限制根部成长，因此间接影响节间的增长能力，导致花梗长度缩短。因此一些蝴蝶兰的肥料配方即将磷肥比例降低10％。如果花梗长度比预期更高，磷肥比例要降的更低。 4. 物理应力 以触摸、振动、吹风等方式可以减少植株高度也可以降低花梗长度。此方式在蝴蝶兰产业曾有尝试。但是实施物理应力作业为消耗劳力的作业方式，需要针对每一株植物个别处理。也容易伤害蝴蝶兰植株。 5. 温度 利用日夜温度的差异（DIF）可以影响节间长度与茎部长度。正的DIF值代表日温高于夜温。负的DIF值则是夜温高于日温。DIF为零代表温室内部处于恒温状态。 DIF愈大，植物高度与节点长度都为之增加。DIF愈小，植株高度变低，节间缩短。 传统的栽培技术，蝴蝶兰的日夜温度环境维持在27℃与19℃。在催梗阶段，夜温下降至15℃，三周后可出现花梗。目前蝴蝶兰产业以27℃恒温生产蝴蝶兰，对一些品种反而容易造成徒长的花梗。 以恒温环境生产蝴蝶兰，夜间加温的成本极高。植物节间在早晨开始伸长，因此将夜温调低数小时可以缩短节间。因此已有研究报告显示在日出之前调低温室温度约两个小时，可以有效地降低植株高度与节间高度。 [图片]二. 化学法 许多温室栽培者使用生长延缓剂以生产短而结实的盆栽。植株的茎干强壮，高度可以一致。但是使用此种化学药剂成本昂贵、对人与环境具有毒害。在药量不适当时问题更加严重。但是使用化学药剂的优点为反应快，效果显著。 使用生长延缓剂的基本原理是阻止激勃素的产生，此种荷尔蒙（激勃素）的主要功能是促成茎干与花梗细胞的延长。在园艺作物生产上常用的化学药剂如下： 1. B-Nine 或Alar（daminozide） 2. Cycocel（chlormequat chloride） 3. A-Rest （ancymidol） 4. Bonzi（paclobatrazol） 5. Sumagic （uniconazole） 上述的延迟剂并未有任一种药剂特别适用于蝴蝶兰。适用蝴蝶兰的药剂除了与品种特性相关，也受到施用浓度、环境条件、施药方法与施药时间等因子所影响。 许多盆栽作物栽培者在面对茎干徒长的问题，主要使用的延迟剂为Bonzi。此药剂由茎部或根部吸收，再藉由木质部输送至终端位置以阻止激勃素形成。但是在施以叶部后，则无法自叶部移送至其它部位。 在已有的研究报告（Wang,Y.T. and Hsu,T.Y. 1994. Flowering and growth of Phalaenopsis orchids following growth retardant applications, HortScience 29：285-288），以Bonzi滴灌（浓度为50- 400 ppm paciobutrazol）有效地限制花梗的延长，并在第二季延迟了开花时期。其试验品种为P. amabilis（L.）Blume × P. Mount Kaala“Elegance”。以Bonzi在不同的花梗发育时期施用125- 500 ppm paciobutrazol于叶面也可得到相似的结果。 在荷兰的研究结果显示以Bonzi（浓度为250 ppm paciobutrazol）在抽梗时间进行叶面施用，对三种品种的花梗长度并没有显著的影响。此结果显示以叶面施用必须确定药剂与茎干能有最佳的接触，而且在抽梗之前使用有最高的效率。 以滴灌方式效率最佳，但是浓度不适当对植株容易产生伤害。对于一些品种，Bonzi的施用导致延迟开花，因此可延后供货期，但也可能错过销售期，因此必须小心施用此种延迟剂。 在蝴蝶兰叶部施用Alar或B-Nine对减短茎长度并无帮助，然而全部植株本体在移植之前施用高浓度剂量daminozide可延迟开花5-13天。 Cycocel可用于叶面或是介质内。Alar与B-Nine或B-Nine与Cycocel以低浓度混合使用有协同效应而且减少毒性。但是Alar与Cycocel混合使用对减短蝴蝶兰花梗长度并无效果。 不同的蝴蝶兰品种对延迟剂的反应也各不相同，因此无法随意的推荐适用的药剂。使用者必须对于自己栽培的品种进行少量试用，以测试可适用的技术，包括试用药剂使用方法、使用浓度、使用时间等。对于有机生产的农场，则无法使用此种药剂。
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