Pošlji prispevek (e-pošta) Vpliv števila plodov na dolžino vrata pestiča in morfologijo cveta pri treh sortah jajčevca (Solanum melongena L.) v Iranu
Povzetek
Splošno poznana lastnost jajčevca je heterostilija. Cvetovi z dolgim vratom cvetiča imajo plodove, tisti s kratkim vratom pa ne. Na heterostilijo vplivajo nekateri dejavniki kot so genotip, podnebne razmere in obloženost s plodovi. V raziskavi so bile gojene tri sorte jajčevca v rastlinjaku. Preučevan je bil vpliv števila plodov (dva in štirje plodovi) in njihova odsotnost na dolžino vrata pestiča in nekatere druge morfološke lastnosti cvetov v odvisnosti od njihovega položaja in sicer posamezni, prvi v socvetju in naslednji. Prisotnost plodov, še posebej štirih, je zmanjšala dolžino vrata pestiča, širino brazde kot tudi maso cveta, vratu in brazde pestiča v primerjavi s kontrolo v celotnem obdobju rasti. Po obiranju plodov se je vrednost teh parametrov spet povečala. Obloženost s plodovi ni vplivala na število prašnikov in njihovo dolžino. Ti učinki so bili opaženi pri vseh treh položajih plodov (posamezni, prvi in naslednji), pri vseh treh sortah. Na splošno je raziskava pokazala, da je obloženost s plodovi vplivala na zmanjšanje dolžine vratov pestiča in velikosti cvetov, ki so nastali po zasnovi plodov, po njihovem obiranju pa so se vrednosti teh parametrov spet povečale.
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DOI: http://dx.doi.org/10.14720/aas.2021.117.3.1938
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