Scarification of seeds is done for removing (a) Dormancy (b) Germination inhibitors (c) Growth (d) Embryo

Scarification of seeds is done for removing (a) Dormancy (b) Germination inhibitors (c) Growth (d) Embryo
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Treatment of seeds at low temperature under moist conditions to break its dormancy is called (a) stratification (b) scarification (c) vernalization (d) chelation.

Description : Treatment of seeds at low temperature under moist conditions to break its dormancy is called (a) stratification (b) scarification (c) vernalization (d) chelation.

Last Answer : (c) vernalization

To preserve the germination ability of most seeds, store them in a: a. Warm, dry environment b. Cool, dry environment c. Cool environment after scarification d. Warm, moist environment after stratificatio

Description : To preserve the germination ability of most seeds, store them in a: a. Warm, dry environment b. Cool, dry environment c. Cool environment after scarification d. Warm, moist environment after stratificatio

Last Answer : Cool, dry environment

Dormancy of seed is a biological mechanisms that provides protection against ______: a. Seed spoilage b. Embryo abortion c. Pre mature germination d. Dehydration

Description : Dormancy of seed is a biological mechanisms that provides protection against ______: a. Seed spoilage b. Embryo abortion c. Pre mature germination d. Dehydration

Last Answer : Pre mature germination

Exposure of seed to low temperature before germination is termed as : a. Scarification b. Stratification c. Vernalization d. All of above

Description : Exposure of seed to low temperature before germination is termed as : a. Scarification b. Stratification c. Vernalization d. All of above

Last Answer : Stratification

Imbibed or germinated seeds subjected to cold temperature is termed as: a. Scarification b. Startification c. Vernalization d. Sterilization

Description : Imbibed or germinated seeds subjected to cold temperature is termed as: a. Scarification b. Startification c. Vernalization d. Sterilization

Last Answer : Vernalization

Names of seed germination inhibitors. -Biology

Description : Names of seed germination inhibitors. -Biology

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Names of seed germination inhibitors. -Biology

Description : Names of seed germination inhibitors. -Biology

Last Answer : answer:

Seed germination and dormancy. -Biology

Description : Seed germination and dormancy. -Biology

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Seed germination and dormancy. -Biology

Description : Seed germination and dormancy. -Biology

Last Answer : answer:

Gibberellins promote (a) seed germination (b) seed dormancy (c) leaf fall (d) root elongation.

Description : Gibberellins promote (a) seed germination (b) seed dormancy (c) leaf fall (d) root elongation.

Last Answer : (c) leaf fall

Plant hormone which causes dormancy in seeds and buds. -Biology

Description : Plant hormone which causes dormancy in seeds and buds. -Biology

Last Answer : answer:

Which helps in cutting the dormancy of seeds ?

Description : Which helps in cutting the dormancy of seeds ?

Last Answer : Gibberellin helps to reduce seed dormancy.

Dormancy of seeds are broken by a. GA b. Ethylene c. Water d. None of above

Description : Dormancy of seeds are broken by a. GA b. Ethylene c. Water d. None of above

Last Answer : GA

Secondary dormancy in non dormant seeds is due to: j. Temperature a. Moisture b. Aeration c. Ligh

Description : Secondary dormancy in non dormant seeds is due to: j. Temperature a. Moisture b. Aeration c. Ligh

Last Answer : Temperature

Why is vivipary an undesirable character for annual crop plants? (a) It reduces the vigour of the plant. (b) It adversely affects the fertility of the plant. (c) The seeds exhibit long dormancy. (d) The seeds cannot be stored under normal conditions for the next season

Description : Why is vivipary an undesirable character for annual crop plants? (a) It reduces the vigour of the plant. (b) It adversely affects the fertility of the plant. (c) The seeds exhibit long dormancy. (d) The seeds cannot be stored under normal conditions for the next season

Last Answer : (d) The seeds cannot be stored under normal conditions for the next season

Product of sexual reproduction generally generates (a) new genetic combination leading to variation (b) large biomass (c) longer viability of seeds (d) prolonged dormancy.

Description : Product of sexual reproduction generally generates (a) new genetic combination leading to variation (b) large biomass (c) longer viability of seeds (d) prolonged dormancy.

Last Answer : a) new genetic combination leading to variation

ABA is involved in (a) shoot elongation (b) increased cell division (c) dormancy of seeds (d) root elongation.

Description : ABA is involved in (a) shoot elongation (b) increased cell division (c) dormancy of seeds (d) root elongation.

Last Answer : (d) root elongation.

When you buy a packet of seeds, what percentage germination rate do you expect?

Description : When you buy a packet of seeds, what percentage germination rate do you expect?

Last Answer : Rate of germination should be printed on the packet along with the year you plant. Here’s an example of a seed packet being decoded.

What is the moisture content of seeds when germination starts ?

Description : What is the moisture content of seeds when germination starts ?

Last Answer : Germination starts when seed moisture is 35-60 %.

A few showers of rain during the months of December and January are beneficial to the rabi crops because they (a) make the plant strong (b) protect the crops from frost (c) cause fall in temperature (d) provide moisture for the germination of seeds

Description : A few showers of rain during the months of December and January are beneficial to the rabi crops because they (a) make the plant strong (b) protect the crops from frost (c) cause fall in temperature (d) provide moisture for the germination of seeds

Last Answer : Ans: (b)

What conditions are necessary for germination of seeds?

Description : What conditions are necessary for germination of seeds?

Last Answer : Seeds need sufficient food for germination, which they get from cotyledons. Following environmental conditions are necessary for seed germination: - Moisture or Water: - i) Seed absorb water and swell ... C. ii) This range of temperature of very necessary for the enzymes to function. 

Germination of undeveloped seeds is favored by: a. Warm temperature (>20°C) b. Gibberallic acid c. Low temperature (<20°C) d. a & b

Description : Germination of undeveloped seeds is favored by: a. Warm temperature (>20°C) b. Gibberallic acid c. Low temperature (

Last Answer : a & b

The optimum cardinal temparature point for germination of rice seeds is– 1) 20°C – 25°C 2) 18°C – 22°C 3) 30°C – 32°C 4) 37°C – 39°C

Description : The optimum cardinal temparature point for germination of rice seeds is– 1) 20°C – 25°C 2) 18°C – 22°C 3) 30°C – 32°C 4) 37°C – 39°C

Last Answer : 1) 20°C – 25°C

An enzyme that can stimulate germination of barley seeds is (a) invertase (b) α-amylase (c) lipase (d) protease.

Description : An enzyme that can stimulate germination of barley seeds is (a) invertase (b) α-amylase (c) lipase (d) protease.

Last Answer : (b) α-amylase

Read the statement given below (i ) Seeds require moisture for germination . (ii) Plant can absorb nutrients in dissolved form. (iii) Irrigation protects crop from both frost and hot air currents . (iv) Irrigation improves soil texture . a) i and ii b) i ,ii, iii c) i , ii , iii , iv . d) i and iii

Description : Read the statement given below (i ) Seeds require moisture for germination . (ii) Plant can absorb nutrients in dissolved form. (iii) Irrigation protects crop from both frost and hot air currents . (iv) Irrigation improves soil texture . a) i and ii b) i ,ii, iii c) i , ii , iii , iv . d) i and iii

Last Answer : a) i and ii

Which plant hormones are known as growth inhibitors?

Description : Which plant hormones are known as  growth inhibitors?

Last Answer : Abscisic acid and Ethylene

Example of growth inhibitors

Description : Example of growth inhibitors

Last Answer : Ans. Abscisic acid and Ethylene

Low temperature helps to _________ growth inhibitors: a. Increase b. Decrease c. Store d. Produce

Description : Low temperature helps to _________ growth inhibitors: a. Increase b. Decrease c. Store d. Produce

Last Answer : Decrease

Many _________ in super optimal concentrations also act as growth inhibitors : a. Auxins b. Gibberellins c. Cytokinins d. All of above

Description : Many _________ in super optimal concentrations also act as growth inhibitors : a. Auxins b. Gibberellins c. Cytokinins d. All of above

Last Answer : Auxins

The following is true of proton pump inhibitors except: A. They are the most effective drugs for Zolinger Ellison syndrome B. Their prolonged use can cause atrophy of gastric mucosa C. They inhibit growth of H. pylori in stomach D. They have no effect on gastric motilit

Description : The following is true of proton pump inhibitors except: A. They are the most effective drugs for Zolinger Ellison syndrome B. Their prolonged use can cause atrophy of gastric mucosa C. They inhibit growth of H. pylori in stomach D. They have no effect on gastric motilit

Last Answer : B. Their prolonged use can cause atrophy of gastric mucosa

What is scarification? -Biology

Description : What is scarification? -Biology

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Is vernalization the same as scarification? -Biology

Description : Is vernalization the same as scarification? -Biology

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Is vernalization the same as scarification? -Biology

Description : Is vernalization the same as scarification? -Biology

Last Answer : answer:

What is scarification? -Biology

Description : What is scarification? -Biology

Last Answer : answer:

By which action a seed coat becomes permeable to water? (a) Scarification (b) Stratification (c) Vernalization (d) All of these

Description : By which action a seed coat becomes permeable to water? (a) Scarification (b) Stratification (c) Vernalization (d) All of these

Last Answer : (a) Scarification

Parthenocarpic tomato fruits can be producedby (a) treating the plants with phenylmercuric acetate (b) removing androecium of flowers before pollen grains are released (c) treating the plants with low concentrations of gibberellic acid and auxins (d) raising the plants from vernalized seeds

Description : Parthenocarpic tomato fruits can be producedby (a) treating the plants with phenylmercuric acetate (b) removing androecium of flowers before pollen grains are released (c) treating the plants with low concentrations of gibberellic acid and auxins (d) raising the plants from vernalized seeds

Last Answer : (c) treating the plants with low concentrations of gibberellic acid and auxins

Dormancy is a function of interaction of growth promoter like GA and growth inhibitor like _________: a. ABA b. Cycocell c. Alar d. Paclobutrazole

Description : Dormancy is a function of interaction of growth promoter like GA and growth inhibitor like _________: a. ABA b. Cycocell c. Alar d. Paclobutrazole

Last Answer : ABA

The process of growth is maximum during (a) log phase (b) lag phase (c) senescence (d) dormancy.

Description : The process of growth is maximum during (a) log phase (b) lag phase (c) senescence (d) dormancy.

Last Answer : (a) log phase

Young embryo is removed from developing seeds and planted on a suitable nutrient medium in vitro is called as

Description : Young embryo is removed from developing seeds and planted on a suitable nutrient medium in vitro is called as

Last Answer : Ans. Embryo culture

The nutritive tissue in the seeds of higher plants is known as - (1) hypocotyl (2) embryo (3) endosperm (4) nucellus

Description : The nutritive tissue in the seeds of higher plants is known as - (1) hypocotyl (2) embryo (3) endosperm (4) nucellus

Last Answer : (3) endosperm Explanation: The seed includes three primary regions: the embryo, nutritive tissue, and seed coat. Endosperm is a nutritive tissue that sustains the embryo and seedling. The endosperm may ... the embryo as in many legumes, which use the cotyledons as a food source during germination.

The plant group that produces spores and embryo but lacks vascular tissues and seeds is (a) Pteridophyta (b) Rhodophyta (c) Bryophyta (d) Phaeophyta.

Description : The plant group that produces spores and embryo but lacks vascular tissues and seeds is (a) Pteridophyta (b) Rhodophyta (c) Bryophyta (d) Phaeophyta.

Last Answer : (c) Bryophyta

Selaginella and Salvinia are considered to represent a significant step toward evolution of seed habit because (a) female gametophyte is free and gets dispersed like seeds (b) female gametophyte lacks archegonia (c) megaspores possess endosperm and embryo surrounded by seed coat (d) embryo develops in female gametophyte which is retained on parent sporophyte.

Description : Selaginella and Salvinia are considered to represent a significant step toward evolution of seed habit because (a) female gametophyte is free and gets dispersed like seeds (b) female gametophyte ... by seed coat (d) embryo develops in female gametophyte which is retained on parent sporophyte.

Last Answer : (b) female gametophyte lacks archegonia

The seeds of Pinus plant show a. Polyembryony b. One embryo c. No embryo d. Redundant embryo

Description : The seeds of Pinus plant show a. Polyembryony b. One embryo c. No embryo d. Redundant embryo

Last Answer : a. Polyembryony

The process where, plants are propagated by seeds, but the embryo is formed by the process in which normal meiosis and syngamy has been eliminated is called

Description : The process where, plants are propagated by seeds, but the embryo is formed by the process in which normal meiosis and syngamy has been eliminated is called

Last Answer : The process where, plants are propagated by seeds, but the embryo is formed by the process in which normal meiosis and syngamy has been eliminated is called – Agamospermy

The nutritive tissue in the seeds of higher plants is known as (1) hypocotyl (2) embryo (3) endosperm (4) nucellus

Description : The nutritive tissue in the seeds of higher plants is known as (1) hypocotyl (2) embryo (3) endosperm (4) nucellus

Last Answer : endosperm

Seed germination and seedling growth. -Biology

Description : Seed germination and seedling growth. -Biology

Last Answer : answer:

Seed germination and seedling growth. -Biology

Description : Seed germination and seedling growth. -Biology

Last Answer : answer:

Which one of the following is used in organic farming to prevent weed Germination & growth? A. Cow pea B. chick pea C. linseed D. Mulching

Description : Which one of the following is used in organic farming to prevent weed Germination & growth? A. Cow pea B. chick pea C. linseed D. Mulching

Last Answer : D. Mulching

Which of the following statements is not correct? (a) Pollen germination and pollen tube growth are regulated by chemical components of pollen interacting with those of the pistil. (b) Some reptiles have also been reported as pollinators in some plant species. (c) Pollen grains of many species can germinate on the stigma of a flower, but only one pollen tube of the same species grows into the style. (d) Insects that consume pollen or nectar without bringing about pollination are called pollen/ nectar robbers.

Description : Which of the following statements is not correct? (a) Pollen germination and pollen tube growth are regulated by chemical components of pollen interacting with those of the pistil. (b) ... Insects that consume pollen or nectar without bringing about pollination are called pollen/ nectar robbers.

Last Answer : (c) Pollen grains of many species can germinate on the stigma of a flower, but only one pollen tube of the same species grows into the style.

Which of the following hormones is NOT correctly matched with its description? A) thymosin--aids in production of T cells B) thyroxin--needed for growth and development in vertebrates C) parathyroid hormone--increases level of calcium ions in blood D) cortisol--lowers blood glucose level by removing glucose into tissues E) epinephrine--released by the adrenal medulla under stressful conditions

Description : Which of the following hormones is NOT correctly matched with its description? A) thymosin--aids in production of T cells B) thyroxin--needed for growth and development in vertebrates ... by removing glucose into tissues E) epinephrine--released by the adrenal medulla under stressful conditions

Last Answer : D) cortisol--lowers blood glucose level by removing glucose into tissues E) epinephrine--released by the adrenal medulla under stressful conditions