A. Diffusion
B. Mass flow
C. Root exudation
Correct Answer: Root exudation ✔
Last Updated: March 30, 2019
Related MCQs
- Sunflower is allelopathic crop to many__________?
- Allelochemicals are used as growth regulators and natural pesticides to promote__________?
- Allelopathy interaction between plants playa crucial role in__________?
- IPM stands for__________?
- Causal organism of root rot of cotton is__________?
- One of the following insect act as a vector for CLCV__________?
- Total cropped area of Sindh is__________?
- In wheat, production of certified seed needs an isolation distance of__________?
- Breeder seed is the progeny of__________?
- In Sunflower, production of foundation seed requires as isolation distance of__________?
- In Bindi, production of foundation seed needs an isolation distance of__________?
- International institute for Tropical Agriculture is located at__________?
- The negative logarithm of the hydrogen ion concentration, a measure of the acidity of a solution is called__________?
- A region with an annual rainfall less than 10 inches comes under__________?
- The amount of water required to rise a crop to matunty with in a given period of time is called__________?
- The practice of producing two successive crops of same species from same piece of land in one year is called__________?
- Ratio of economic yield to biological yield expressed in percentage is called__________?
- The control and preservation of natural resources for present and future use is called__________?
- Plants having no defined limits of vegetative and reproductive element is called__________?
- Ratio of crop yield to the amount of water utilized is called__________?
- Percentage of area irrigated by a cusec of water during the season is called__________?
- The leguminous plants are important in agriculture because__________?
- One of the plant introduced from new world to the old world is__________?
- Which is the most important cereal crop of temperature region__________?
- Delta of water for cotton crop is__________?
- In cotton the recommended R x R distance is__________?
- Seed rate of cotton per acre is__________?
- CCRI stands for__________?
- The productive branches of cotton are called__________?
- On the basis of season cotton is a__________?
- In B.T cotton B.T. stands for__________?
- The root of cotton plant goes up to depth of__________?
- Cotton plant has mode of germination__________?
- APTMA stands for__________?
- In 1992-93 the greatest decrease in the production of cotton was due to attack of__________?
- Delta pine variety of cotton was imported in Pakistan in the year__________?
- On the basis of yield of cotton per hectare which of the following country occupies second position__________?
- Among the cotton exporting countries the number of China is__________?
- Among the cotton exporting countries the number of America is__________?
- First ginning machine was invented in__________?
- England cotton was imported from the time in__________?
- Gassypium barbadense was developed from a cross between__________?
- Gassypium barbadense was originated in__________?
- Genus of cotton is__________?
- Gassypium hirsutum is__________?
- The Cotton plant belong to family ?
- Which one of the following is a major fiber crop of Pakistan ?
- Organic farming, is a copping system in which__________?
- A nutrient element is said to be essential if__________?
- The vegetation found on high altitude mountain is__________?
- The soil are contains__________?