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Spotting 1

Spotting number 1 for biology class 12 practicals
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0% found this document useful (0 votes)
27 views7 pages

Spotting 1

Spotting number 1 for biology class 12 practicals
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
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Spotting -] Yo Study, adaptariong agenci¢s Cwind, ingech Atypical flow welt modified shoot and the reproduc. tive_organ ef an angiosperm. It bears male and female, reproductive tlowerg pollinated by alffwent » bind and sates) n8_preducing both male gametes (it. pollen _graing) and female game te (ie 29g cel) fecilinat (on {bis the _pr C08 of pollen geains 4rom the _anthen _of the _recept stigma of either anothen flower of the grain Is beowpht> to whe sttpma by agencies and binds, considswned as an da peprodacins, ¢ Such as we This phe nv meno 5 im-pon tant plants. In three methods, Autog am 4 on Self -pollinatior, jn ha pollination, —_occung —_wiheh the pollen — get toanspennecl to _sne_Stp/n0h ofthe same ¢lorer, Geitanogamy In__this ollinat p atloh__OCCUNS by, dhe borne on the eae af the ~—tame___nla nty (Crass _- pollination ( Xs, 4 and _/ ln this, pollination 9 drm a flouw 4f d 0 ano tne pniany thr Insect, ond adaptatior Bu ae ae jp. Anemoph Wind , it Ie UY. Entom oph of nse iP Genthe pil &x- Agave £ & ed _entome ph Poll nation by pine nat by bincks Ls Bigne nia pollination IVY Hyano phil y- 1d occuns with the hela of pater t _is called pyane pln i. & a sue fare [in flouwn a4 plant4__ but 1s. fo on IN lg plant gruups such aa algae » Pripphy and ot wnlade ph ft ls. fr- Vallisnenia, 20 $7070. Hydailla, a4 Regu rements Compound _micras &,hand len covensli pr dresh. 4] 013, fore eph, needle, ae 2 f flowers 4 Male on Aras oh 7 Bignenia ,Vallisneia rete Qfass Salvia, Procedure tentstics. Note In ite pollination by _extennal 3h Dis + out to see _it& male_and gemale reproducdiv pants. All Dist the pollens on a top of _maten_ofsilds CH Now, obsunve the —_chenactentstics pollens under, Micros to fe 6h And drow a _/abbiled diagram ef each categorie Qbsenvati ond, Ane reo phil, ( Pellina ten by wind) ip mage ( Zea mays) > By yp Mage plant bears male ang demale on Ne same plant tale dloweng ane tinminal whereas, female finns ane axillary in position gb Flowens ane _smau, Laceospicunue. gee adownlea ‘and _nectaalerg i‘ SF Both st yma and anthers hang. outside the patantn( exnmted in position) Ab Pollens ane \19Nt, saul dount aad and dusty, They ane produced a lange. __naenbernd sp Shama bs hairy, beathey, branched and s¢ chy te catch laind dispuned _pollen&h f p lip Pioug ( fine) {| The _pelena an produced In huge numbers ap c ane li ght __vergnted Sp # o pollen _pusse& win 5-9 Which take then of f along with wind to _dan-off placed. rp) ilibrasses (heat and Rice , p> showy and WlFlowens ane not _hrightly —_colaned om shawls an Nspicous in nature = 3 They Vis em scent and don’? produce petals hat produce Light weighted pollen gnund in lang Insecta. 3 Sh Seon is” eathuyy, to catch pollen. ss pe Alten beating ation FA pulled down Halen place, Jemale fleas} of —flouen Atalks, “aden _by col ling, he —dijdenent tines of flowenc acta them telues aces iad to thein, Nabi tar» availability and_the _| #ype ra Pelli'natons. IN th way, thet oho weak Van'edions nO MNein Merpholo gical dedtunes alsa wiin special _adapdi'w featunes Precau tons = the jeesh {I —merphols qtcal + eas ohoulcl__be taken _t_dudiy the ATUNES, = Me | [| fhe polens _anouto be gene dunted on alee Poi batn a dro vatw unden ne pntcro geo pe bejure —obaeuing. thea |

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