Flower tsarin: general description

Flower - mai kyawawan hadaddun da inherently musamman sashen angiosperms. Its main aiki - shi ne jima'i haifuwa da kwayoyin. Duk da cewa da tsarin da flower yana da wasu siffofin da na kowa, domin kowane rukuni na shuke-shuke yana dauke akayi daban-daban da kuma hankula taxonomic hali.

Flower, ta ayyuka da kuma halaye. Kafin akai la'akari da tsarin da flower, shi wajibi ne don gano abin da ke cikin generative sashin jiki. Flower - ba fãce da taqaitaccen kuɓuta, da petals, pistils, stamens, sepals da aka modified ganye.

A furanni na jinsuna daban na Flora da dama halaye. Alal misali, dangane da hanyar da pollination, su sami launi daban-daban da kuma siffofi, da kuma ƙarin sassa, kamar nectaries. A wannan za a iya ce game da su size - da karami flower Duckweed yana da wani diamita na 1 mm, da kuma flower a wasu Topical kai shuka mita diamita.

A general tsarin da flower. Da tsarin za a iya raba uku main sassa:

• Kara part - kunshi pedicel da matattarã ba.
• Takardar da - nan sun hada da petals da kuma sepals.
• Generative part - pistils da stamens.

A flower aka sanya a kan shoot tip, duka biyu main kuma gefen. Kara tsere smoothly cikin peduncle (sessile furanni wannan bangare ko ƙwarai taqaitaccen ko ba ya nan). Yana kara zuwa gaba samar da wata da ake kira matattarã - cewa an haɗe da shi da kuma duk sauran sassa na flower. Yana iya zama convex, concave, elongated ko lebur - shi ne ma wani muhimmin taxonomic haruffa.

Flower: perianth tsarin. Perianth kira da bakararre ɓangare na flower. Its main aiki - shi ne kariya ta generative sassa. Bugu da kari, cikin siffar da kuma tsarin da hanyar dogara a kan perianth pollination na shuke-shuke.

Perianth ne zuwa kashi:

• Simple - shi ya fita duk guda (misali, idan muka yi la'akari da tsarin da Tulip flower, za mu iya ganin cewa yana da wani sauki perianth).
• Dual - perianth abubuwa samar da wata kofin da whisk.

Calyx kunshi raba sepals - za su iya zama free ko coalesce tare.

Buga} wai guda ne mai sa na petals. Matsayin mai mulkin, su ne mafi bayyane ɓangare na flower. Suna iya coalesce tare ko zama free. Wasu wakilan da shuka mulki, kamar legumes ko orchids, beaters an halin da m asali tsarin. A petals za a iya qware epidermal Kwayoyin cewa samar da muhimmanci mai - daidai da abin da ya halitta kamshi.

Babban ayyuka na Pavilion - kariya a kan high yanayin zafi a cikin yini, kariya daga hypothermia da dare, rana kariya, kazalika da jawo pollinating kwari.

Flower tsarin: generative part. Generative rabo ne ya wakilci androecium flower (stamen tara) da kuma gynoecium (tara pestles).

A stamens ne a wuri na ilimi da kuma maturation na pollen. Adadin su iya bambanta daga daya zuwa dama da ɗari. Wadannan abubuwa iya flower coalesce da juna, ko ya zama free. Stamen matattarã a haɗe zuwa stamens bakin ciki thread, wanda aka ayi bellow saman. Bi da bi, da anther ne zuwa kashi biyu halves, kowanne daga abin yana da biyu ramummuka, wanda aka dauke da microspores.

Pestle - daya daga cikin manyan gabobin na flower. Ya kunshi carpels Fused tare. Pistil kwai za a iya raba (kasa part, wanda yana dauke da kwai), wani shafi da kuma stigma (da wani ɓangare cewa na'am hirtsinta).

A tsarin da flower iya zama mabanbanta. Amma shi ne ya kamata a lura da cewa adadin, siffar da kuma gaban sauran kananan abubuwa a cikin tsarin da kowane bangare ne a zahiri muhimmanci taxonomic haruffa cewa an yi amfani da zamani taxonomy.