Home / Biologiya / Nafasgirii bargho. Obro bukhor kardani bargho

Nafasgirii bargho. Obro bukhor kardani bargho

Rastanihoi sabz ba monandi digar mavjudoti zinda moddahoi organikiro ba sifati gizo istifoda mebarand. Lekin farqi onho az digar organizmhoi zinda (zanburugho, bakteriyaho, hayvonot va gayraho) az on iborat ast, ki onho pesh az on ki moddahoi organikiro gizo girand, onro saravval dar bargashon dar ravandi fotosintez hosil mekunand.

Rastaniho dar barobari gizo giriftan, inchunin ba monandi tamomi mavjudoti zinda muttasil nafas megirand. Rastaniho monandi hayvonot va odamon ruzu shab oksigenro nafas girifta, gazi karbonatro khorij mekunand.

nafasgirii-bargho

Ravandhoi hayoti dar har yak hujayrai zinda meguzarand. Va in ravandho sarfi energiyaro talab mekunand. Dar ravandi nafaskashi moddahoi organiki (gizoi) bo oksigeni nafasgiriftashuda oksid shuda, gazi karbonatro khorij mekunand va energiyai baroi organizm darkori hosil meshavad. Binobar on, hamai uzvhoi rastani, ki az hujayrahoi zinda iboratand, nafas mekashand.

Rastaniho uzvi makhsusi nafaskashi nadorand. Onho ba tufayli masomaho va javfi baynihujayragiashon oksigenro nafas girifta, gazi karbonatro khorij mekunand.

Baroi sanjidani nafaskashii bargi rastaniho chunin tajriba meguzaronem. SHokhchai 10-12 bargdoshtai yagon namudi rastaniro (yo yakchand bargi darozdumchadori anjibar yo guli tutiyoro) girifta, ba stakani obdor meguzorem. Sipas, stakanro ba boloi lalicha guzosh- ta, dar pahluyash stakanchae, ki ohakobi shaffof dorad, memonem. Onhoro bo sarpushi shishagin yo bankai kaloni shishagin pushonda, dar jevoni torik meguzorem. Dar toriki bargi rastani faqat nafas mekashad. YAne, barg oksigenro nafas kashida, gazi karbonatro khorij mekunad. Bo tasiri gazi karbonate, ki barg dar ravandi na- faskashiash khorij kardaast, ohakobi shaffof tirarang meshavad.

fotosintez

Hamin tavr, dar rastaniho du ravandi (hodisai) dar maddi nazar ba ham zid — fotosintez va nafaskashi meguzarad. Vale dar rastaniho dar bayni in ravandho aloqamandii iogusastani vujud dorad, ki onro metavon in tavr tasvir kard:

YAne, moddahoi organikie, ki dar ravandi fotosintez hosil me- shavand, dar ravandi nafaskashi mavridi istifoda qaror dorand. Gazi karbonate, ki dar ravandi nafaskashi hosil meshavad, dar ra- vandi fotosintez baroi hosil kardani moddahoi organiki sarf meshavad. Hamin tavr, nafaskashi dar tamomi hujayrahoi zindai uzvhoi rastani betanaffus idoma dorad. Bo qat gardidani nafas- kashi rastaniho nobud meshavand.

Obro bukhor kardani rastani. Taqriban 80 foizi vazni rastany az ob iborat ast. Ob baroi harakati moddahoi gizoi sharti zaruri buda, qismi muayyani on baroi hosil shudani moddahoi organiki sarf meshavad. Inchunin, mikdori ziyodi ob tavassuti bargho bukhor meshavad.

SHokhchai bargdori rastaniro az rastanii asosi judo nakarda, ba kolbai shishagin joy gironed. Bo pakhta dahoni kolbaro mahkam kuned. Badi chand muddat dar devorhoi kolba qatrahoi ob paydo meshavand. In qatrahoi obro bargi rastani bukhor kardaast.

Baroi muayyan kardani miqdori obi bukhorshudai bargi rastani chunin tajriba meguzaronem. SHokhchai bargdori yagon rastaniro girifta, dar zarfi obdor meguzorem. Ba sathi boloii ob kame ravgan merezem. Ravgan sathi boloi obro faro girifta, ba bukhorshavii ob mone meshavad. Bad ba yak pallai tarozu zarfi obdor va ba digarash posang meguzorem. Dar chunin sharoit ob metavonad faqat tavassuti barg bukhor shavad. Pas az yak shabonaruz obi zarf khele kam meshavad va pallai tarozui rastanidor bolo bardoshta meshavad. Baroi barobar kardani pallahoi tarozu meboyad, ki ba pallai tarozui rastanidor posang guzoshta, onhoro barobar ku- nem. Az rui vazni posang muayyan mekunem, ki rastani tavassuti bargash chi miqdor obro bukhor kardaast.

Ob asosan az sathi barg bukhor meshavad. Dar daruni barg bukhori ob az javfi (rogi) baynihujayravi guzashta, ba tufayli masomaho ba berun khorij karda meshavad. Az hama ziyodtar obro barghoi nisbatan javon bukhor mekunand.

Hususiyati obro bukhor kardani rastani gunogun ast. Masalan, yak niholi juvorimakka dar yak shabonaruz 800 g, karam 1 l, bulut 50 l, tus besh az 60 l obro bukhor menamoyad. Ba mikdor va surati obro bukhor kardani rastani khususan sharoiti muhiti beruna tasiri ziyod merasonad. Masalan, dar havoi abrnok nisbat ba ruzi oftobi rastaniho obro kam bukhor mekunand, dar havoi garmi oftobi boshad, ziyodtar.

Obro bukhor kardani rastani inchunin ba holati dahonachahoi (masomahoi) barg sakht vobastagi dorad. Dar baze rastanikho masoma faqat ruzona kushoda buda, shabona pushida meshavad. Dar holati ba darajai kofi bo ob tamin budani rastani masoma ruzu shab kushoda ast.

Bukhorshavii ob dar hayoti rastaniho ahamiyati kalon dorad. Ba tufayli obbukhorshavi dar havoi tasfon rastaniho az garmshavii barziyod zarar (oseb) namebinand. Bukhor shudani ob ba mubodilai obii rastaniho musoidat mekunad. Inchunin, tavassuti harakati ob moddahoi madani va gizoii dar on halshuda ba uzvu qismhoi rastani burda meshavand. Az hama asosiash on ki dar natijai bukhorshavi ob to bargho omada, dar ravandi fotosintez ishtirok mekunad.

  1. Rastani chi tavr nafas megirad?
  2. Baroi sanjidani nafasgirii rastani chi khel tajriba guzarondan mumkin ast?
  3. Aloqamandii ravandi fotosintez va nafaskashiro sharh dihed.
  4. Obro bukhor kardan dar hayoti rastani chi ahamiyat dorad?
  5. SHaroiti muhiti beruna ba obro bukhor kardani rastani chi khel tasir merasonad?
  6. Masoma dar hayoti rastani chi ahamiyat dorad?
Загрузка...

Dar boramon

Инчунин кобед

dandon-pizishk

Homiladoron chitavr dandonhoro nigohubin namoyand

Tashrifi dandonpizishk har nim sol, yak marotiba tavsiya karda meshavad. Bo faro rasidani davrai homiladori …