Lub Cim Morphological Ntawm Walnut
Sep 18, 2020
Lub sapwood ntawm walnut yog milky dawb, lub plawv zoo li txawv ntawm lub teeb xim av rau tsaus chocolate, nrog qee lub sijhawm ua xim paj yeeb thiab tsaus nti.
Yuav muab tau nrog chav kho mob sapwood darkening phaj lossis tsis chav kho.
Cov kab ntoo yog feem ntau ncaj, qee zaum siv ib qho luaj nkaus lossis curly, los ua ib hom qauv ntxim nyiam.
Cov ntoo txiav lossis ib nrab ntawm cov ntoo lossis cov ntoo me me, cov roj ntoo, cov ntxhiab tsw, nrog cov qog sib xyaw nrog cov txiv kab ntxwv-daj thaiv.
Buds liab qab los yog nrog cov nplai teev, feem ntau 2-3 overlapping hauv axils.
Nplooj ua lwm yam los yog nyias qhov muag, tsis muaj stipules, khib lossis txawm pinnate compound;
Cov ntawv muag muag rov qab los yog hloov pauv, nrog lossis tsis muaj cov leeg, pinnate leeg, npoo serrate lossis daim nyias nyias.
Paj unisexual, monoecious, anemone.
Inflorescence unisexual los yog bisexual.
Cov kev sib raug zoo ntawm txiv neej paj hauv caty inflorescence, ib lossis ob peb fascicles, nyob rau hauv axil ntawm nplooj lossis paj teev;
Los yog ntawm cov ceg ntoo uas tsis muaj nplooj thiab hauv qab lub davhlau ya nyob hauv poj niam inflorescence, sib koom ua cov ntoo poob ntawm lub cev ua ke;
Los yog los ntawm lub apex ntawm tus ceg tshiab thiab hauv qab lub davhlau ya nyob hauv bisexual inflorescence (poj niam inflorescence ntawm qhov qis kawg thiab txiv neej inflorescence nyob rau sab saud) tsim ib qho kev txhim kho corymbose fasciculus.
Txiv neej paj hauv axils ntawm ib qho tsis tuaj yeem lossis 3-lobed bract;
Bracts 2 thiab perianth 1-4, appressed ncig flattened receptacle hauv bracts, lossis tsis muaj bracts thiab perianth;
Stamens 3-40, ntxig rau ntawm qhov muaj peev xwm, 1-orbicular, filaments tsis ntev los sis tsis muaj, pub dawb lossis kho me ntsis ntawm lub hauv paus, anthers glabrous lossis glabrous, 2-kev tsim, ntev raws txoj kab, septum tsis tuaj, lossis tsim thiab ntau lossis tsawg dua saum anther Cov txiv duaj.
Cov kev sib raug zoo ntawm cov poj niam paj nyob hauv cov miv zoo li sib lawv liag, davhlau ya nyob twg, nrog ob peb lub paj poj niam ua rau zoo, lossis kev sib raug zoo ntawm cov paj poj niam feem ntau nyob hauv kev sib raug zoo catcat.
Cov poj niam ua paj hauv lub axils ntawm ib qho tsis muaj tseeb lossis 3-lobed bract, bracts detached ntawm ovary lossis adherent kom qis ovary los ntawm union nrog 2 bracts, lossis adherent rau qis ovary los ntawm cais los ntawm 2 bracts, los yog adherent rau ovary los ntawm sib sau kettle involucre nrog receptacles thiab bracteoles;
Perianth 2-4, adnate rau ovary, nrog 2 ntawm ob sab, 4 ntawm midline sab nraud, sab hauv ntawm ob sab;
Pistil 1, connate los ntawm 2 carpels, ovary inferior, thawj 1 compartment, tom qab lub hauv paus nrog 1 lossis 2 tsis tiav septum mus rau qhov tsis tiav 2 lossis 4 compartments, style tsis tshua muaj neeg qis, stigma 2-lobed lossis thinly 4-lobed;
Tso cov qe ntawm lub zes qe menyuam, luv kem, thaum pib pub dawb, tom qab zoo kho nrog tsis muaj septum, apex nrog 1 tsa elo anzygotic ncaj ovule.
Cov txiv ntoo loj tuaj ntawm bracts thiab perianth lossis perianth ib leeg lossis los ntawm involucre thiab ovary rau hauv pseudodrupe lossis nutlike;
Pericarp fleshy lossis tawv lossis tawv nqaij los yog tawv nqaij, tsis tawg lossis tawg tsis xwm yeem thaum loj hlob, lossis 4-9 li qub tawg;
Endocarp (lub qhov taub) tsim los ntawm lub zes qe nws tus kheej, txhav, pob txha, ib qho sib dhos, nrog ib qho tsis tiav ntawm 1 lossis 2 pob txha ntawm lub hauv paus ntawm sab hauv, thiab yog li tsim qhov tsis tiav 2 lossis 4 qhov sib sau;
Cov phab ntsa ntawm cov endocarpels thiab cov septa tsis tiav tau muab nrog lossis tsis hloov pauv ntawm cov kab tsis sib xws (cov kab noj hniav) ntawm qhov dav hlau transverse.
Cov noob loj, ua tiav cov txiv hmab txiv ntoo sib xyaw ua ke, nrog 1 lub noob paj noob txiv ua ke, tsis muaj qhov kawg;
Radicle nce mus, cotyledon hypertrophy, fleshy, feem ntau 2-lobed, lub hauv paus tapering lossis cardioid, embryo me me, feem ntau nrog cov ntaub thaiv npog lub qog.