Agricultural Science

Definition and Meanings of Agricultural Terms (P and Q) part 2

len Alfred Ajibola - Sat, 22nd June, 2019 @ 3:18 PM

Topics in Agricultural Science

Importance of forest: Forest reserves in Nigeria Wildlife reserves in Nigeria and its importance Prevention and Control of Crop Pests Economic Importance of Crop Pests Classification of Insect Pests and their Economic Importance Agricultural Machines and their Uses Soil Erosion: Causes of Soil Erosion Ways to prevent Soil Erosion Asexual Propagation in Plants, Types and Examples Differences between Gymnosperms and Angiosperms Scheme of Work, Agricultural Science, SS1, First Term Scheme of Work, Agricultural Science, SS1, Second Term Scheme of Work, Agricultural Science, SS1, Third Term Len Academy Agric Science exam questions, JSS1, First Term Len Academy Agric Science exam questions, JSS1, First Term, part 2 Definitions and Meanings of Agricutural terms (P - Q) Definition and Meanings of Agricultural Terms (P and Q) part 2 Len Academy questions for Agric Science JSS1, 2nd Term Len Academy questions for Agric Science JSS1, 2nd Term, Part 2 Roles of Government in Agriculture

Academic Questions in Agricultural Science

Please check out our Test Your Knowledge page to see all Questions and Answers

Cordage is made from _____ crop.

  • A. Food

  • B. Fibre

  • C. Ornamental

  • D. Oil

  • E. Cash

  • F. Vegetables and Spice

_____ is defined as the solid and arable part of the earth where agricultural activities are be carried out.

  • A. Soil

  • B. Farmland

  • C. Agricultural land

  • D. Biosphere

  • E. Open land

  • F. Planting and grazing land

Gymnosperms and angiosperms are seed bearing plants under the division spermatophyta?

  • A. True

  • B. False

Which of the following is false concerning gymnosperms?

  • A. Cones are present

  • B. Sepals are present

  • C. Petals are absent

  • D. Only seeds are produced

  • E. Sporophyll form the cones

  • F. In seed formation, the ovules aren't present in the ovary

Which of the following statement is incorrect concerning seeds?

  • A. The ovary develops into the seed after fertilization

  • B. The embryo in the seed develops into a young plant

  • C. The seed's endosperm serve as a source of food reserve for the developing embryo

  • D. A seed has its own genotype

  • E. Seeds are products of sexual reproduction

  • F. Apomictic seeds aren't produced sexually and the hawkseed is an example

The _____ is the reproductive organ in plant's sexual reproduction.

  • A. Pollen grain

  • B. Ova

  • C. Sperm

  • D. Flower

  • E. Fruit

  • F. Seed

In flowering plants, fertilization occurs when the _____ comes into contact with the ova (as genetic materials are eventually exchanged).

  • A. Sperm

  • B. Endosperm

  • C. Exosperm

  • D. Stigma

  • E. Ovule

  • F. Pollen grain

The fusion of sperm and ova in animals leads to the formation of _____.

  • A. Foetus

  • B. Embryo

  • C. Ovary

  • D. Neonate

  • E. Zygote

  • F. Egg



Read more on its smart academic features here

Agricultural Terms:

This is a continuation of the agricultural terms and definitions for letters 'P' and 'Q'.

You can read on agricultural terms for letters P and Q part 1 here


  • Plant Litter

This is the accumulation of plant’s leaves, twigs, bark, stem, branches, fruits, seeds, flowers and other plant parts on the surface of the soil.


  • Plantations

This is a very large area of agricultural land on which one type of crop may be established through planting.

Examples of plantations are cotton plantations, tobacco plantation, sugar cane plantations and so on.


  • Plantlets

These are small plants or young plants that are grown through vegetative propagation from the parent plant. Understand that vegetative propagation is a form of asexual reproduction in plants.

Please read on vegetative propagation here.


  • Plantibodies

These are recombinant antibodies that are produced from genetically modified crops.

Please read on immunization here.


  • Plasmolysis

This is the shrinking of a living plant cell, animal cell or bacteria cell as a result of water loss from the cell's cytoplasm to its environment; due to an outward osmotic water flow.


  • Plus Trees

These are trees in which their outward appearance are much bigger when compared to an average tree of the same species grown on a similar area of land.

Some plus trees have shown to be pest and disease resistant.


  • Pollen (Pollen Grains)

This is the male germ cell or gametophytes (or sex cell) in plants.

Pollen grains are present in the anther of a flower.


  • Pollen Rain

This is the fall of large amount of pollen grains and spores on a particular area.


  • Pollination

Pollination is the transfer of pollen (male gametes) from the anther of a flower to the stigma of a flower.

Pollination is of two types. These are:

  1. Self Pollination: This is the transfer of pollen grain from the anther of a flower to the stigma of the same flower (or to the stigma of another flower on the same plant).
  2. Cross Pollination: This is the transfer of pollen grain from the anther of a flower to the stigma of another flower on a different plant. Cross pollination may be brought about by wind, water and insects.

Please read on agricultural terms and definitions, (letter A) here


  • Pomology

This is a branch of botany that deals with the science or study of growing and cultivating fruit.


  • Postharvest Food Safety

This is the process of ensuring that food products from farmland are fit for human consumption.


  • Postharvest Treatment

Postharvest treatment include various processes like disease control, ripening initiation, preservation techniques, packing and grading of harvested crop in order to make them fresh for marketing and processing.

You can read on problems of agriculture in Nigeria here.


  • Poult

A poult is a young turkey of either sex and usually not more than two months of age.


  • Poultry

Poultry consist of domestic birds raised for meat and eggs.


  • Precooling

This is the process in which large quantities of fruits or vegetables are rapidly cooled prior to loading for shipment.


  • Productive Soil

This is a soil in which the chemical, physical, and biological conditions are ideal for the economic production of specific crops in a given area.

Please read on agricultural land and its uses here.


  • Primary Succession

This is the initial and natural development of the vegetation (usually plants or lichens) on a bare or barren area.

The term 'lichen' refers to a symbiotic association between algae and fungi.


  • Pullet

A pullet is a female chicken less than 1 year old.


  • Q fever

This is an acute disease caused from infected dust and passed into cattle, sheep, goats and domestic animals.

The bacteria Coxiella burnetti present in dust are responsible for Q fever in domestic animals.

You can read on micro-organism causing diseases here

Please read on agricultural terms and definitions, letters I - O here

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Alfred Ajibola is a Medical Biochemist, a passionate Academician with over 10 years of experience, a Versatile Writer, a Web Developer, a Cisco Certified Network Associate and a Cisco CyberOps Associate.

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Amazing facts in Agricultural Science

Peanuts are legumes and not nuts

Although plants neither see nor hear, they can recognize their siblings and even give them preferential treatments

Squirrels do plant more trees (through their actions) than an average human in their lifetime. They often hide their acorns and nuts underground and forget about them

Cows have got the ability to walk up stairs, but not down stairs

A group of cows is called a team, drove or herd.

People just prefer to call them herd

NOTABLE POINTS IN Agricultural Science

Below are some common types of erosion:

  • Water Erosion: It is caused by rainfall and flooding on the topsoil. As a result of water erosion, some layers of the topsoil are lost.

  • Sheet Erosion: When an entire surface of land becomes eroded at a uniform (equal) level, such is referred to as sheet erosion. It is shown below:
    Sheet Erosion - Len Academy

  • Wind Erosion: It results from the actions of wind on a bare land. Wind erosion is often seen in deserts. Overgrazing and lack of vegetation cover will also enhance wind erosion on topsoil.

Please read more on types of soil erosion here.

Soil erosion is defined as a process through which the topsoil is removed or moved from one point to another by agents like wind, water, man and animals.

Soil erosion occurs naturally (wind and water) and may also be facilitated by living organisms.

Soil erosion is more likely to occur on a sloppy land and land with no vegetation cover. When this occurs, the nutrient rich layer of the topsoil is washed away; and this ultimately results in fewer plants growing on such eroded soil.

Please read more on soil erosion here

There are about 630 different kinds of carnivorous plants.

Carnivorous plants are plants that derive some or most of their nutrients by consuming small animals, especially insects.

Carnivorous plants are also referred to as insectivorous plants.

Examples of carnivorous plants include sundew and Venus flytrap.

Please read more on carnivorous plants here