Description : Nuceller seedlings are also called as: a. Monoembryony b. Zygotic seedling c. Polyembryony d. None of them
Last Answer : Polyembryony
Description : The development of fruit without fertilization or seed is called as: a. Pollination b. polyembryony c. pseudogamy d. Parthenocarpy
Last Answer : Parthenocarpy
Description : Occurrence of more than one embryo in a seed is known as: a) Polyembryony b) parthenocarpy c) Apomixis d) Embryogeny
Last Answer : Ans: a) Polyembryony
Description : The seeds of Pinus plant show a. Polyembryony b. One embryo c. No embryo d. Redundant embryo
Last Answer : a. Polyembryony
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
Description : The nutritive tissue around the embryo in seed is a. Endosmosis b. Endodermis c. Endosperm d. Embryo-sac
Last Answer : Endosperm
Description : Ripened ovary is called as: a. Flower b. Seed c. Fruit d. Embryo
Last Answer : Fruit
Description : Salient factors which contribute to the fruit drop are: a. Embryo abortion b. Seed number of fruit c. Moisture supply d. All of the above
Last Answer : All of the above
Description : Commercial flower crops are sometimes watered to cause leaching. This means: a. Watering to spread fertilizer nutrients more evenly throughout the plant root system b. Watering to remove excess soluble salts from ... only to wet the top 1/3 of the growing medium d. Watering by subsurface methods
Last Answer : Watering to remove excess soluble salts from the growing medium
Description : The two most practical means of the home owner to control insects and diseases are: a. Mechanical and chemical b. Mechanical and biological c. Chemical and biological d. Biological and natural
Last Answer : Mechanical and biological
Description : Date palm propagation is by means of: a. Suckers b. Seeds c. Off shoots d. None
Last Answer : Suckers
Description : Word pomum means: a. Fruit b. Vegetable c. Flower d. None of these
Description : Which crop propagated by asexual means: a. Sweet potato b. Chillies c. Cauliflower d. None of above
Last Answer : Sweet potato
Description : Cultivar means a. Some cultivated variety b. Discarded variety c. Rejected variety d. Approved variety
Last Answer : Some cultivated variety
Description : Transplanting means a. Shifting of seedlings b. Shifting of large plants c. Shifting of potted plants d. All of these
Last Answer : Shifting of seedlings
Description : Truck gardening means vegetable production for: a. Distant places b. Industry c. Local market d. None of these
Last Answer : Distant places
Description : In anemophilous plants, pollens are disseminated by means of: a. Insects b. Water c. Wind d. Gravity
Last Answer : Insects
Description : Severe pruning in grapes is recommended: a. Every year b. After two year c. After three year d. None of them
Last Answer : Every year
Description : Mango flower carries fertile stamens which are. a. One b. One or two c. Three d. One or three
Last Answer : One
Description : Training plants into three-dimensional ornamental forms, such as animals, is called: a. Topiary b. Espalier c. Heading back d. Bonsai
Last Answer : Topiary
Description : The three important genera of Anacardiaceae family are. a. Mangifera, Pistacia and Cocos b. Eugenia, Anacardium, Pistacia c. Pistacia, Mangifera, Anacardium d. Psidium, Aurantium, Mangifera
Last Answer : Pistacia, Mangifera, Anacardium
Description : Drupe fruits have all the three ovarian layers a. Fused b. Separated c. Mixed d. None of these
Last Answer : Separated
Description : Formation of diploid embryosac from diploid vegetative structure, e.g., nucellus or integument etc., without meiosis is called: (a) Apospory (b) Apomixis (c) Diplospory (d) Adventives polyembryony
Last Answer : Ans. ((a))
Description : What is polyembryony ?
Last Answer : Polyembryony is the phenomenon in which a single embryo in its initial embryonic stage divides itself forming many new individuals of the same sex and genetically identical. This is the way, for ... place in armadillos of the genus Dasypus. Polyembryony is an example of natural cloning .
Description : The best example of Polyembryony is (1) Cocoa (2) Capsicum (3) Citrus (4) Cycas
Last Answer : (3) Citrus Explanation: In citrus fruits such as oranges, the nuclear cells that surround the embryo start dividing and protrude into the embryo sac. These develop into embryos; thus resulting in the presence of more than one embryo inside each ovule. This condition is known as polyembryony.
Description : Development of an organism from female gamete/ egg without involving fertilization is (a) adventitive embryony (b) polyembryony (c) parthenocarpy (d) parthenogenesis.
Last Answer : (d) parthenogenesis.
Description : The polyembryony commonly occurs in (a) tomato (b) potato (c) Citrus (d) turmeric.
Last Answer : (c) Citrus
Description : Nucellar polyembryony is reported in species of (a) Citrus (b) Gossypium (c) Triticum (d) Brassica.
Last Answer : (a) Citrus
Description : Which one of the following generates new genetic combinations leading to variation? (a) Vegetative reproduction (b) Parthenogenesis (c) Sexual reproduction (d) Nucellar polyembryony
Last Answer : (c) Sexual reproduction
Description : The transfer of pollen grains from anther to stigma is called; a) Fertilization b) pollination c) Microsporogenesis d) Polyembryony
Last Answer : Ans. b) Pollination
Description : In spite of several angiospermic features Gnetum is a gymnosperm because…. a) polyembryony is a common features b) prothallial cell is present in the male gametophyte c) seed is naked d) stem exhibit anomalous secondary growth
Last Answer : c) seed is naked
Description : Nucellar polyembryony is reported in species of:a) Citrusb) Gossypiumc) Triticumd) Brassica
Last Answer : a) Citrus
Description : The chemicals which induce artificial polyembryony are
Last Answer : The chemicals which induce artificial polyembryony are – 2,4 D; 2,4,5, T, and NAA
Description : When polyembryony is due to activation of some sporophytic cells of ovule, it is called as
Last Answer : When polyembryony is due to activation of some sporophytic cells of ovule, it is called as – Adventive polyembryony
Last Answer : Citrus
Description : A __________ is a woody perennial that has more than one main trunk. a. Tree b. Flower c. Shrub d. Weed
Last Answer : Shrub
Description : Clay soils require: a. A longer time for absorption of irrigation water than sandy soils b. A shorter time for absorption of irrigation water than sandy soils c. About the same time for absorption of ... soils d. More or less time for absorption than sandy soils, depending on the pH of the clay
Last Answer : A longer time for absorption of irrigation water than sandy soils
Description : Hodgson divided genus citrus into: a. 16 species b. 26 species c. 36 species d. More than 36 species
Last Answer : 36 species
Description : The commercial yield of citrus orchards in tropical and subtropical are commonly: a. Equal b. 50% less in tropical than subtropical regions c. 50% more in tropical than subtropical regions d. All wrong
Last Answer : 50% less in tropical than subtropical regions
Description : Apple bears on spurs in cluster of: a. 3 Flowers b. 4 Flowers c. 5 Flowers d. More than all above
Last Answer : 5 Flowers
Description : Shrubs fall in the category of a. 7-15 feet high b. 25 feet high c. More than 25 feet d. None of these
Last Answer : 7-15 feet high
Description : A transplanted tree or shrub should be set into the ground: a. 50 percent deeper than it was originally planted b. So that the top roots are exposed to the air c. With the top of the container slightly covered d. At the same depth at which it was originally growing
Last Answer : At the same depth at which it was originally growing
Description : At the time of transplanting, weight of date palm sucker should be: a. 5-10 kg b. 10-20 kg c. 20-30 kg d. Less than 5 kg
Last Answer : 10-20 kg
Description : Rate of ethylene production in citrus is comparatively_______ than in mango. a. Higher b. Lower c. Equal d. Unknown
Last Answer : Lower
Description : Cross pollinated in apple generally produce a. Bad results than self pollinated b. Better results than self pollinated c. Same results as self pollinated d. Non of these
Last Answer : Better results than self pollinated
Description : Lower temperature than normal convert male flowers into perfect flowers in ________: a. Date palm b. Mango c. Papaya d. Citrus
Last Answer : Papaya
Description : During storage of vegetable seeds, seed moisture should be a. Less than 10% b. Equal to 10% c. Greater than 10% d. None of above
Last Answer : Less than 10%
Description : Which of the following perennials has more varieties? a. Geranium b. Helenium c. Verbena d. Ghazania 574 Which of the fol
Last Answer : Geranium
Description : More harmones are accumulated in plants due to accumulation of _______: a. Nitrate b. Starch c. Protein d. Vitamins
Last Answer : Starch
Description : Which of the following factor(s) is/are more suitable for good onion production? a. High temperature b. Long photoperiod c. None of above d. All abov
Last Answer : All abov