Competitive Exams: Revision Terminology Part 30

  • Diatomite (or Kiesulghur) – Light transparent porous & chemically L wert - Agred Nobal used to absord nitroglycerine from which dynamite is made, used as filtration acid in sugar refining, sound proof rooms, abserb colours.

  • Sevege treatment – Anacystis, Chlamydomonas, chorella, Englena, Oscillatoria, pandorinia, scendesscumus spiraline.

  • Cephaleuros virexens causes red rust of tea (thea senesis) – also piper & mango orchards – (gram algae).

  • Puccinia – Uredia & telia on wheat leaves.

  • Mushrooms are largest fungi -> Reserve food is glycogen (not starch)

  • Vivipomous germination – Ahizophora.

  • Hiypogeal – pea

  • Epigeal – Bean

  • P. Maheswari – Introduction to Embryology of Angiosperm.

  • Radicle – root.

  • Plumale – shoot

  • H2O for activation of metabolism in metabolism is embryo.

  • Oxygen for fest resp to yield energy.

  • Capsella – Dicot weed, annrul herb, Cruciferaceae, polygomum type of embryo sac.

  • Ovules are amphitropous, bitegmic, Synergids, are hooked.

  • Embryogennesis – ongrad type, globular embryo, 6 cotyledons in culture, normally – 2 cotyladons.

  • Based cell – transverse division, terminal cell – vertical division at right angle to based cell.

  • Have high osmotic value at early stage & low osmotic value when mature.

  • Dispersion of seed – pinus seed & fruit of sycamore – wings.

  • Dispersion Pappas – sepal modified into hair like Structure (Pomachute mech)

  • Dispersion ballon shaped – Calyx in physalis, ovary in cardiospermun.

  • Dispersion censer mech – Poppy.

  • Cocklebur (Xanthium) – Fruits have many hooks.

  • Seeds of tiger nail (Martynia) – Curved hooks.

  • Ruellia – Jaculators pr. – become straight & throw food with force.

  • Coconut – mesocarp is fibrous.

  • Lotus – thalamus is spongy.

  • Monocot seed – wheat, waize, rice

  • Dicot seed – Gram, pea, Mustord, tomoto.

  • Apple, pear, loquat – pome – fleshy thalamus.

  • (exalbuminious) non endosporic – gram, pea, tomato – dicots.

  • (albuminious) Endosporic – maize, monocots.

  • Ovule -> Caruncle (fleshy white structure on micropylar end due to proliferation at tip outer integument facilitates seed dispersal, hygroscopic.

  • Ovule aril – from funicle or testa or both, it surrounds ovule eg. Litechi

  • Caryopsis – bicarpellary gynocieum, unilocular ovary eg Graminae.

  • Samara – seeds are winged, wings develop from pericarp.

  • Drape – endosperm is strong, one seeded from multicarp Ellery gynocieun eg mango, Coconut

  • Pepo – hard walled berry, triearpellary gynocieum inferior ovary.

  • Sugarcane, Cocoa, Rose, Bougainvillea – stem cuttings.

  • Grafting in dicot necessary that it has cambium layer.

  • Spiral – magnoliaceae.

  • Spirocyelic / Hermicyelic – Ranunculaceae.

  • Hypogynow – supnior ovary – Curciferae, Maluaceae, Solanaceae.

  • Perigynous – Caesalpiniaceae.

  • Epigynous – inferior ovary – composite, Cucurbitaeceae.

  • Petals & sepals fused –> Tepals = Perianth (common in monocots)

  • Poller grains in Pollinia (Asclepiadaceae, orchidaceae)

  • Translator apparatus – family Asclepiadaceae – anthers are bicelled.

  • Syngensious – filaments free & anthers fused eg. Compositae

  • Synandrous – filmments & anthers fused eg. Cucurbita, Araceae.

  • Gynobasic style (arise from base of gynoecium) eg Labiatae

  • Apocarpus – Carpels free – Ranunculaceae, Magnoliaceae.

  • Syncarpus – Corpels fused – Craciferae, Malvaceae.

  • Cauilflowery – production of flowers on old stem from dormant buds – Ficus, Artocarpus.

  • Placentation – Marginal – unilocular ovary, from ventral suture – Legurninosae (febacae)

    • Parietal – unilocular ovary, ovules from inner walls eg. Cucurbitaceae.

    • Axile – multilocular ovary, ovules from central axis malraceae, Solanaceae, Libraceae.

    • Free central – unilocular ovary, ovules from central axis Dianthus (Caryophyllaceae)

    • Based – unilocular ovary, ovules thalamus, composite, graminae.

    • Superficial – multilocular ovary, ovules from inner septa water lify (Nymphea).

  • Polyadelphous – Filownents fused in several bundles.

  • Mono Polyadelphous – Filownents fused in one bindle.

  • 1st stage of male gametophyte – haploid pollen grain.

  • Pollen kit – oily layer outside pollen grain of lipids & carotenoids.

  • Ovules

    • Anatropous – ovule is completely inverted – Compositae, Solanaceae.

    • Orthotropous – ovule, funicle & chalaza in one line – Cycas.

    • Hemianatropous – at right angle – Rananculus.

    • Campylotropous – Curved – Leguminosae, Coryophyllaceae.

    • Amphitropous – Curved, ovule horse shoe shaped – Alisma.

    • Circinotropous – one completer round, micropyle face up – Cactus.

  • Unitegmic – with one integument – Gefmnosperm, compositae, solanceaceae.

  • Bitegmic – Cruciferace, Malvaceae, Cucerbitaceae.

  • Ategmic – Loranthaceae, Santaleaceae.

  • Endosperen – free nuclear – most common – cotton, Zeamays.

  • Cellular – 1st is primary & then no. of Division for wall formation.

  • Monocots – Helobial – intermediate – large microphylar chamber & small chalazal chamber perisperm is the remnant of nucellus.

  • Monocots – albuminous – endosperm forms bulk.

  • Embryo (monocot) is small & consists of single cotyledon – Scutellum.

  • Radicle is protected by coleorhiza.

  • No endosperm – orchidaceae, podostemaceae, trapacae.

  • Grafting not possible in monocot – Cambium absent V.B. Closed.

  • Gridling not possible in monocot – V.B. are Scattered.

  • Eustele – dicots

  • Atcetostele – monocot

  • Xylem – Hadrom

  • Phloem – Leptom

  • Monocot root – radial, clored, exarch.

  • Dicot stem – open, endarch.

  • In dicot leaf – phloem on abaxial side.