Menene lalatar fure?

Furanni suna da tsari mai rikitarwa. Ba su da sauƙi a gare mu, amma idan muka ɗan tsaya mu ɗan duba kowane ɓangarensa, za mu fahimci cewa gaskiyar, ta wuce almara.

Ofaya daga cikin waɗancan sassan waɗanda yawanci suna da furanni da yawa shine wucewa, kuma shine wanda yake jan hankalin mu sosai ga mutane, domin shine yake taimaka mana sosai don yanke shawara akan wata shuka ko wata.

Menene perianth?

A perianth ambulaf ne wanda yake kewaya da kare gabobin jima'i na fure. Bakararre ne, amma wannan ba yana nufin cewa bai cika muhimmiyar rawa ba wajen haifar da tsire-tsire. A hakikanin gaskiya, launuka da / ko siffofin perianth suna jagorantar masu jefa ƙuri'a da yawa don ɗaukar ƙuraren ƙuraren zuwa abin kunya, daga inda zai wuce zuwa ƙwai kuma daga can zuwa ƙwarjin.

Ya ƙunshi nau'i biyu:

Corolla

Corolla ana yin corolla ne ta hanyar petals, amma ya kamata a sani cewa lokacin da sepals da petals suke da launi iri ɗaya, ana kiransu tepals. Yana kula da jawo kwarin da zasu fidda fure.

Nau'in Corolla

Dangane da fasalinsa:

• Actinomorphic: shine wanda za'a iya raba shi zuwa sassa iri daya.
• Zygomorphic: shine wanda, idan aka yanke shi biyu, za'a samu rabi daban daban.

Labari mai dangantaka:

Menene actinomorphic da furen zygomorphic?

A cewar kungiyar kwadagon petals:

• Dialipet shi: a cikin wannan nau'in petals ɗin basu haɗuwa ba.
  • Misalai: Rosa (wardi), dianthus (carnation), Papaver (poppies).
• gamopetala: a wannan yanayin, petal ɗin suna da cikakke ko kuma sashi ɗaya.
  • Misalai: Kampanula, Lamium, Erica (heather), Vaccinium (shuɗi).

Chalice

A chalice ita ce gefen ƙarshen raƙuman, kuma ya kasance daga sepals wanda aikinsa shine kare tsarin fure. Yawanci koren launi ne, kuma yana da fasalin ganye wanda aka gyara.

Sepals za su iya samun nau'ikan siffofi iri iri da tsawon rai, ya danganta da nau'in shuka. Misali, a cikin furannin fili, an rage su zuwa gashin da ake kira papus ko vilano.

Bugu da ƙari, a game da yawancin bishiyoyi masu 'ya'yan itace, kamar su Malus gidan sarauta (itacen apple), ana ajiye waɗannan akan itacen har sai fruita fruitan su cikakke. Akasin haka, a cikin Papaver (poppies), suna faɗuwa da zaran furen ya buɗe.

Nawa iri nawa suke a can?

Akwai nau'i uku:

• Kwancen Monoclamid: lokacin da bashi da petals ko sepals.
• Homoclamid na kusa: idan tana da kwalliya iri daya da sepals, a irin wannan yanayin furen yana da tepal.
• Hetroclamide na kusa: shine lokacin da petals da sepals suka banbanta.

Kuma akwai wani nau'in fure, wanda ake kira furen aclamide. Wannan shine ba tare da ɓacewa ba.

Shin kun san halayen perianth?