Coco de mer dabino na Seychelles abu ne na almara. Its iri - mafi girma kuma mafi nauyi a duniya - an taba yarda suna girma a kan bishiyoyi a ƙarƙashin raƙuman ruwa na Tekun Indiya, kuma suna da ikon warkarwa. Ko da daga baya ya bayyana cewa dabino ya yi girma a busasshiyar ƙasa, sabbin tatsuniyoyi sun fito: Don samar da wannan iri, tsire-tsire maza da mata suna rungumar juna a cikin dare mai hadari, ko kuma wani labari na gida ya kasance.
Tatsuniyoyi na iya zama haka kawai, amma dabino har yanzu yana da jan hankali na musamman. "Coco de mer ita ce kawai tsire-tsire masu ban sha'awa da za su iya yin hamayya da katuwar panda ko damisa," in ji Stephen Blackmore a Royal Botanic Garden Edinburgh, Birtaniya. Yanzu kimiyyar da ke bayan 'ya'yan dabino mai kwarjini yana da ban sha'awa.
To ta yaya shukar da ke tsiro a cikin ƙasa mara kyau a tsibiran guda biyu kacal ta ke samar da iri mai rikodin rikodi wanda ya kai rabin mita a diamita kuma zai iya yin nauyi kusan kilo 25?
Sun gano cewa ganyen suna da kusan kashi ɗaya bisa uku na adadin nitrogen da phosphorus da ake gani a cikin ganyen wasu bishiyoyi da ciyayi da suke girma a tsibirin Seychelles. Har ila yau, kafin a zubar da tsofaffin ganye, dabino yana cire mafi yawan sinadarai daga gare su da kyau tare da sake sarrafa su. Zuba hannun jari kaɗan a cikin ganyen yana nufin dabino yana da ƙarin saka hannun jari a cikin 'ya'yan itacensa.
Iyaye masu kulawa
Amma ba wannan ba shine kawai hanyar da ganyen ke taimakawa haɓakar ’ya’yan itace ba. Manyan ganyaye masu laushin gaske suna da tasiri sosai wajen zurfafa ruwa a cikin gangar jikin yayin ruwan sama. Kaiser-Bunbury da takwarorinsa sun nuna cewa wannan magudanar ruwa kuma yana dibar duk wani nau'in abinci mai gina jiki a cikin ganyayyaki - matattun furanni, pollen, najasar tsuntsu da sauransu - kuma yana wanke shi cikin ƙasa nan da nan kusa da gindin dabino. Sakamakon haka, adadin nitrogen da phosphorus a cikin ƙasa mai nisan santimita 20 daga gangar jikin ya kasance aƙalla kashi 50 cikin ɗari fiye da ƙasa mai nisan mita 2.
Blackmore ya gani da farko yadda ingantaccen ruwan ganyen ke ba da ruwa - ya fi wasu magudanan ruwa a gine-ginen gida, in ji shi. "Amma don yin la'akari da shi a cikin sharuddan ba kawai ruwan ruwa ba amma na gina jiki ya kasance babban tsalle-tsalle na tunani kuma yana ƙara yawan fahimtar wannan bishiyar mai ban mamaki," in ji Blackmore.
Hans Lambers na Jami'ar Yammacin Ostiraliya da ke Crawley, wanda ke nazarin yadda nau'ikan tsire-tsire suka dace da ƙarancin matakan phosphorus a cikin ƙasa a kudu maso yammacin Ostiraliya, ya ce ganyen Coco de mer "dabaru daban-daban" .
Binciken yana da alaƙa da wani abu mai ban mamaki game da dabino: da alama ya zama na musamman a cikin masarauta don kula da tsiron bayan sun haihu. Yawancin bishiyoyi sun samo asali iri da ke tafiya - akan iska ko cikin hanjin dabba - don kada tsire-tsire su yi gogayya da iyayensu don albarkatu iri ɗaya. An makale a tsibiran guda biyu kuma ba za su iya yin iyo ba, ƙwayoyin coco de mer yawanci ba sa tafiya mai nisa.
Amma masu binciken sun gano cewa tsiron yana amfana da girma a cikin inuwar iyaye, saboda suna samun damar samun ƙasa mai gina jiki a can.
"Wannan shi ne ainihin abin da ya fi burge ni da abokan aikina game da Lodoicea," in ji Kaiser-Bunbury. "Ba mu san wani nau'in [shuka] da ke yin wannan ba."
Pesky 'yan'uwa
Wannan har yanzu bai bayyana dalilin da yasa tsaba suke da girma ba. A cewar wata ka'ida, dole ne mu koma zamanin mutuwa na dinosaur don bayani. Kimanin shekaru miliyan 66 da suka gabata, yanayin kakannin dabino mai yiwuwa ya dogara ga dabbobi don tarwatsa manyan tsaba - amma watakila ya rasa wannan hanyar lokacin da ɓangarorin ɓawon nahiya wanda ya haɗa da Seychelles ya balle daga ƙasar Indiya a yanzu, yana ware dabino. .
Wannan yana nufin tsire-tsire sun dace da girma a cikin inuwar iyayensu. Saboda manyan tsaba suna da wadataccen abinci mai gina jiki, tsire-tsire sun riga sun shirya sosai don yin hakan, kuma daga ƙarshe sun yi nasara fiye da yawancin sauran nau'in bishiyar da ke cikin yanayin: har yau, dabino na Coco de mer sune mafi rinjaye a cikin dazuzzukansu.
Karkashin yanayin dazuzzukan da nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'''i nau'i nau'i nau'i nau‘i nau'i nau`i nau‘i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i naui nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nauyai)) ya mamaye, maimakon gasa tsakanin nau'i-nau'i - ya haifar da juyin halitta, in ji Kaiser-Bunbury. Wannan yana nufin dabino a hankali ya girma girma kuma ya fi girma don samar da tsire-tsire tare da tanadin abubuwan gina jiki mafi girma don haɓaka damar tsira a kan 'yan uwansa.
Kevin Burns a Jami'ar Victoria ta Wellington, New Zealand, ya yi nazarin yadda tsire-tsire ke tasowa a keɓe tsibirai, kamar Seychelles, ya ce coco de mer da alama yana bin tsarin juyin halitta gabaɗaya. "Tsaki suna haifar da manyan iri bayan sun mallaki tsibiran da ke keɓe, kuma nau'in tsibiri na tsibiran galibi suna da girma da yawa fiye da danginsu na ƙasar," in ji shi. "Manyan tsaba gabaɗaya suna ba da ƙarin gasa seedlings."
Coco de mer dabino bai bayar da dukkan sirrinsa ba tukuna. Daidai yadda furannin mata - mafi girma a cikin kowane dabino - suna pollinated ya kasance asiri. Blackmore da ake zargin ƙudan zuma suna da hannu, amma wasu masu bincike suna tunanin ƙagaru za su iya canja wurin pollen daga bishiyar maza mai tsayin mita 1.5, masu kama da kyan gani. Labarin cikin gida, a halin yanzu, yana nuna cewa bishiyoyin maza suna yayyage kansu daga ƙasa a cikin maraice masu hadari kuma suna kulle cikin sha'awar rungumar jiki da mata. Irin wannan labari ne ke kara sha’awar dabino.
Source: - Sabon Masanin Kimiyya - Maganar Jarida: Sabon Masanin Kimiyya,
