Mene ne tushen da shuka?

Mene ne tushen? Shi ne mai matukar muhimmanci shuka Gabar da samar da girma da kuma aiki. Ana zargin wannan jikin da aka danganta su da mataki na ci gaba da Flora ta duniya surface.

Akidar - wani boye ɓangare na shuka, wanda yana da apical girma, kuma yana da radial tsarin.

Babban tushen ayyuka ne:

• anga - cewa shi ne, rike da shuka a cikin ƙasa.
• mamaye da kuma - karbar daga ƙasa ruwa da kuma ma'adinai abubuwa hawa ta cikin xylem (ruwa gudanar da nama) to duk aboveground shuka sassa domin samar da tsari na photosynthesis.

Har ila yau hada a cikin m sassa na shuka kwayoyin abubuwa, kazalika a cikin tushen hormones, amino acid, alkaloids, et al., Tara a cikinta, kuma su ne samar da gina jiki. Tushen ne ma wani sashin jiki na vegetative yaduwa daga shuke-shuke.

Tare da definition daga abin da yake da tushe, ko da yaushe bayyana manufar tushen tsarin, wanda aka kafa ta duk da tushen da shuke-shuke a cikin tara. Rarrabe main, adventitious kuma a kaikaice asalinsu.

Babban (ko primary) tushen samun da ci gaba ne har yanzu a cikin tayi asalinsu. A flowering shuke-shuke da gymnosperms babban tushen ne main, yana da Unlimited girma da kuma kyau geotropism (watau ba da dama shugabanci ga ci gaban da shuke-shuke).

Adventitious tushen ne sakandare da kuma girma daga tushe da kuma tsohon Tushen, ko ganyen.

Kaikaice Tushen girma daga cikin manyan kuma m.

A tushen da irin tsarin ne core ko fibrous. A cikin ainihin tushen tsarin na primary tushen mai karfi bayyana. Irin wannan tsarin da yawanci dicotyledonous shuke-shuke (msl karas, dandelions, kankana, sunflower). Lokacin da fibrous tushen tsarin girma na babban tushen bayyana kadan, ba tsaya daga cikin adventitious Tushen (msl, valerian tushe, psyllium, hatsin rai). Wannan tushen tsarin ne na hali da yafi ga monocots.

A ciki tsarin da tushen

Mene ne tushen, daga ra'ayi na ciki tsarin? A cikin hedkwatarsu da aka gudanar a tushen tsarin kunshi sieve shambura da kuma tasoshin. Samar da wani ruwa kai tasoshin tare da narkar da na gina jiki ga m sassa na gashi asalinsu. Sieve shambura, a maimakon haka, aka hawa daga cikin kwayoyin mafita terrestrial jikin tushen Kwayoyin. Sel ilimi tushen kyallen takarda (cambium) an ci gaba da rarraba da kuma samar da wannan tushen ci gaban a kauri.

Mene ne tushen, da kuma duk da babban zone ne a fili bayyane a tsaye sashe.

Akidar hula da aka kafa ta shafi masana'anta da kuma maida hankali da tushen koli, kare shi a matsayin hula daga daban-daban diyya. Its sauran aiki ne da ya inganta da ci gaba na tushen a cikin ƙasa.

rarraban zone aka located nan da nan a kasa tushen hula da kuma kunshi kananan Kwayoyin ilimi yadudduka cewa samar da m rarraban tushen ci gaban.

mikewa zone aka kafa cikin matasa, kawai girma Kwayoyin miƙa a tsaye shugabanci da kuma game da shi yin tushen ci gaban a tsawon.

Idan shuka a hankali tono, za ka iya ganin yadda tushen entwine gona barbashi, wannan bangare ne ake kira da tsotsa yankin. An rufe tushen hairs, wanda aiki ne zuwa tsotse ruwa da na gina jiki. Dankon ne slime surface.

Sama da tsotsa yankin na zone aka kafa ta a conductive masana'anta da kuma sa up mafi daga cikin tushen tsawon. Domin tasoshin tushen sama tare da kara motsi ruwa da kuma ma'adanai, wanda aka kai tsaye narkar da a cikinta.

Wasu daga cikin tushen shuke-shuke za a iya canza ta fitowan da m yanayi na ci gaban da shuke-shuke da kuma samar da masauki don su.