MCQs of Agriculture – Agronomy

The branch of Science which deals cultivation of land is called.

Which one of the following is a major fiber crop of Pakistan.

The Cotton plant belong to family.

Botanical name of American cotton is.

Botanical name. of Desi cotton is.

Gassypium hirsutum is.

Gassypium arborium is.

Genus of cotton is.

Gassypium hirsutum was originated in.

Gassypium herbaceum was originated in.

Gassypium barbadense was originated in.

Gassypium and Hirsutum was developed from a cross between

Gassypium barbadense was developed from a cross between

England cotton was imported from the time in.

In China, cotton was cultivated as a crop in.

First ginning machine was invented in.

Cotton ginning machine was invented by

Among the cotton exporting countries the number of America is

Among the cotton exporting countries the number of Pakistan is

Among the cotton exporting countries the number of China is

On the basis of yield of cotton per hectare which of the following country occupies first position.

On the basis of yield of cotton per hectare which of the following country occupies second position.

On the basis of cotton cultivated area which on of the following countries occupies first position.

Delta pine variety of cotton was imported in Pakistan in the year

In 1991-92 the record production of cotton in Pakistan was

In 1992-93 the greatest decrease in the production of cotton was due to attack of.

CLCV stands for

APTMA stands for

Cotton plant belong to one of the following categories

Cotton plant has mode of germination

Cotton plant has a mode of germination

The root of cotton plant goes up to depth of

Cotton is a crop of

In B.T cotton B.T. stands for

Bacillus thuringensis season cotton is a

On the basis of season cotton is a

Optimum pH for cotton plant lies between

The productive branches of cotton are called

The unproductive branches of cotton are called

CCRI stands for

Seed rat of American cotton per acre is

Seed rate of cotton per acre is

Recommended method for cotton sowing is

In cotton the recommended R x R distance is

Best time of sowing for cotton is

Delta of water for cotton crop is

Number of irrigation required for cotton crop are:

Which is the most important cereal crop of temperature region

An example of monocot fiber yielding plant is

One of the plant introduced from new world to the old world is

Major source of sugar in world is

The leguminous plants are important in agriculture because

The depth of water required by crops during the base period is called

Percentage of area irrigated by a cusec of water during the season is called

The heating of atmosphere by gases that are transparent to sun light but opaque to radiated heat is called

Ratio of crop yield to the amount of water utilized is called

The total dry matter produced by a plant as a result of photosynthesis is called

Plants having no defined limits of vegetative and reproductive element is called

The application of fertilizer nutrients in proportions best suited to the needs of the crop is called

The control and preservation of natural resources for present and future use is called

Soil water in excess of hygroscopic and capillary water which moves downward through the soil by the force of gravity is called

Ratio of economic yield to biological yield expressed in percentage is called

Weedicides that kill the foliage of weeds by direct contact are as

The practice of producing two successive crops of same species from same piece of land in one year is called

The living together of two or more species in a prolonged and intimate ecological relationship is called

The amount of water required to rise a crop to matunty with in a given period of time is called

Pulling of off- type plants from a cropped field is called

Water requirement for sugarcane crop is

The ratio of actual cultivated area to a total farm area over a year is called

A region with an annual rainfall less than 10 inches comes under

The wearing away of the land surface by wind, water, ice or other geological agent is called

The negative logarithm of the hydrogen ion concentration, a measure of the acidity of a solution is called

The harmful influence of one living plant on another living plant by the secretion of a toxic substance is called

Which one of the following constitute the best defamation of fruit

International institute for Tropical Agriculture is located at

Barani Agriculture institute is located at

In Bindi, production of foundation seed needs an isolation distance of

Certification is not required for

In Sunflower, production of foundation seed requires as isolation distance of

Seeds which dried at low moisture contents and stored at low temperature without loosing their viability are

Breeder seed is the progeny of

Prescribed germination percentage of foundation seed of ground nut is

In wheat, production of certified seed needs an isolation distance of

Indus river is one of the longest river of Asia measuring about

Total cropped area of Sindh is

Main reason behind the shedding of flower in cotton is

One of the following insect act as a vector for CLCV

Sex pheromones traps are used for the pest of

Causal organism of root rot of cotton is

Root rot of cotton is a

IPM stands for

Raising of only one crop in a year, when there is seasonal supply of water is called

Allelopathy interaction between plants playa crucial role in

Effects of allelopathic compound in the life cycle of plants cause inhibition of

Allelochemicals are used as growth regulators and natural pesticides to promote

Annual rye grass releases a chemical through its root that prevents

Sunflower is allelopathic crop to many

Allelopathy is an important component in the development of future integrated strategies for

Allelocliemicals may enter in the soil through the process of

Allclopatluc interactions in general and the allelochemicals in particular are viewed as an important tool for

The allelochemicals are broadly classified as

Plants which grow on dry region are

The pH of urea fertilizer is

Crop rotation means growing

A good source of vegetable protein is

Critical factors for crop production is

What do you mean by WTO

One hectare is equal to

Conducting experiments in glasses is called

The climates of sindh province comes under

Auxins and cytokinins are

The soil has got

The series of transformation which a nutrient undergoes in the biosphere before returning to its original formed is called

The management of kind by planting a series of crops, pastures or following to maximize production with sustaining land quality is called

In pulses, limiting amino acids are

Crop ideotype refers to

The ratio of treatment variance to error variance is known as

The experimental design which control fertility level in two directions is known as

The significance of difference among several means is tested with the level of

Drought is measuring in terms of

Melilotus alba is objectional weed of

Soil reaction of preference of sugarcane is

Which one of the following is C4 plain

There has been emphasis on the conservation of wild relatives of cultivated plants because wild plants

The lowest pest population that will cause economic damage is called

The process of converting food nutrients to carbohydrates in plants is called

Gaseous loss of a substance from the soil or from fertilizer or manure is called

Plants which change from the vegetative to the reproductive stage by producing flowers and fruits when the day become longer is called

Resistance of plants to living organism is called

When crop plants adopt to a new environment are called

A foreign variety that is directly recommended for commercial cultivation is called

The organisms which do not prepare their own food and depend on the dead organisms are called

Integrated pest management involves

The cotton plant sheds more fruits mainly due to

A crop grown on residual moisture after harvesting rice is called

Dwarf varieties of wheat are more resistance to

Agro ecological regions of sindh are

Yield losses of rice crop due to weed infestation are

Fertilizer requirements of wheat under medium loamy soil is

Wheat is predominantly

There is

Growing more then one crop in a season in the same land is called

Root nodules in plant help in

A condition of green plants in which they become unhealthy and pale fellow in colour is known as

Part of embryonic axis which develops into root is called

The crop which are cultivated for grain purposes are called

Tillage is field operation which help in cutting, loosening and inverting the soil for

The best soil for cotton cultivation is

Foliar application of nitrogen means applying nitrogen in solution form to

The herb plants have

The available form of nitrogen for plants is

Water courses are lined to avoid

Natural water as pH equal to

Progeny of nucleus seed is called

A method of estimating seed vigour on the basis of color intensity o the stained seeds was described by

Use of tetrazolium staining for assessment of seed quality was suggested by

genetic purity is assessed through

Excess of nitrogen to plants causes

Hybrid seeds are developed because they

A method of control of pests in which natural predators and parasites are used without causing serious adverse environmental side effects is called

The systematic arrangement of soil in to groups or categories is called

The transport of a substance across a biological membrane against a concentration gradient is called

One rooting hormone occurring naturally in plant is.

Number of crops grown on the same piece of land in a year and expressed in percentage is known as

The contribution of agriculture in the GDP of the country is

In Pakistan, the total length of canal system exceeds

Pakistan has a total forest area of about

In Pakistan the area effected due to water erosion is about

The sever salinity problem has taken lands out of production as