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Tagyiri shakli resha

Dar reshai baze rastaniho (sabzi, turb, shalgam, lablabu va gayraho) moddahoi zakhiravi gun meshavand. CHunin reshaho boavj gafs gardida, ba khud shaklhoi gunogunro megirand. Onhoro odatan bekhmeva (yo reshameva) menomand. Bekhmeva dar aksari holatho az reshai asosi va yo az qismi poyonii poya hosil meshavad.

Rastanihoi bekhmevador aksaran rastanihoi dusolaand. Onho dar soli yakumi hayotashon gul nakarda, tanho bekhmeva hosil mekunand. Dar bekhmevaashon miqdori ziyodi moddahoi organikii gizoiro zakhira mekunand. Dar soli duyumi hayotashon az in moddahoi gizoii zakhirashuda istifoda burda, gul mekunand va mevayu tukhm mebandand. Rastanihoi dusola pas az hosil kardani mevayu tukhm khushk meshavand.

reshaho

Dar guli kavkab (kartoshkagul), qosidgulak va batat (kartoshkai shirin) moddahoi zakhiravi dar reshai asosi gun nashuda, balki dar reshahoi pakhlui yo ilovagi zakhira meshavand. Dar natija, dar yak rastani bo mikdori ziyod lundabekh (yo lundai resha) hosil meshavad.

Dar rastanii ashaqa (plyush) reshahoi makhsusi pahluii chaspon inkishof meyoband va rastani ba tufayli onho ba tanai devor yo da- rakhton mahkam mechaspad. Bo yorii chunin takyagoh ashaqa ba bolo sab- zida, bargu poyaashro ba ravshani mebarorad.

Dar tana va shokhakhoi gafsi darakhtoni tropiki reshahoi ilovagi mesabzand. Onho sabzida to ba zamin merasand va vazifai takyagohro ijro mekunand.

Dar reshahoi pahluii sebarga, nakhud, yunuchqa va digar rastanihoi lubiyogi tagyiroti gunogunshaklro mushohida kardan mumkii ast. Dar reshachahoi javoni pakhluii onkho bakteriyahoi makhsus sokin shuda, dar on jo lundachahoro ba vujud meovarand. Az in sabab onhro bakteriyahoi lundareshagi meguyand. Onho khususiyati az khud kardani nitrogeni ozodi tarkibi havoro dorand. Bo kumaki in bakteriyahoi lundareshagi rastani bo gizoi nitrogeni tamin karda meshavad va tarkibi khok niz az in gizoi madani boy megardad. Binobar on, dar baze khojagiho tirmis (lyupin), sebarga, yunuchqaro ba sifati nurii sabz baroi hosilkhez kardani khok istifoda mebarand.

  1. Rastanihoi bekhmevadori mahalli zistatonro nombar kuned.
  2. Bekhmeva chi tavr hosil meshavad?
  3. Lundabekh dar kujo hosil meshavad va dar kadom rastaniho dida meshavad?
  4. Dar rastanihoi lubiyogi resha ba chi khel tagyiryobi duchor meshavad?
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