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The oxygen concentration in the air is________________?
Related MCQs
Air contains__________?
Seed leachate conductivity is significantly higher in seeds having__________?
Use of linear measurements of plumule growth as a vigour test was first suggested by__________?
Electrolytes leakage is found greater in__________?
The potential means of enhancing productivity is__________?
Abnormal seeding growth in rice is more closely related, with__________?
Abnormal seeding growth in rice may be due to__________?
Seed dormancy of nee seeds can be successfully broken by heat treatment at__________?
Progeny of nucleus seed is called__________?
Who gave the formula for speed of germination__________?
Who the a method of estimating seed vigour on the basis of color intensity of the stained seeds ?
Seeds of wheat, paddy and maize showed positive correlation germination (%) and viability (%) as determined by__________?
Who described the method of estimating seed vigor on the basis of colour intensity of stained seed__________?
Oka (1975) has suggested that me population size suitable for maintenance and seed production of a commercial crop of a self pollinated species should be__________?
In rice, high silicon content, in shoot confers resistance to__________?
The total dry matter produced by a plant as a resulting photosynthesis is called__________?
Initial vegetation that invades and occupies the area is called__________?
The deficient level of N(%) in plants suggested by various workers is__________?
Hot desert has mean annual temperature of__________?
Removal of branches for forage is__________?
Mesophytes are grown in__________?
The technical name of janter is__________?
Hyderabad district area is in__________?
What is SAZDA__________?
A warm summer and pronounced winter is called__________?
Very hot and winterless condition is__________?
Controlled run off, water supplies, irrigation, soil fertility is called as__________?
When one set of vegetation follows the oilier set of vegetation with passage of time is known as__________?
The depth of irrigation water required for the full crop period is called__________?
EC of saline soil is equal to or greater than__________?
The critical stages in cotton is__________?
The movement of water in soil profile is.known as__________?
Drip method of irrigation is not suitable to close spaced crops because__________?
The maximum working depth of disc plow is__________?
In country’s GDP, the cotton accounts for__________?
A treeless arctic plan is called as__________?
A. income farm where the operator is producing primarly his family’s needs rather than for sale is called__________?
Pasturing system that allows short periods of heavy use followed by recover, period is called as__________?
Precise assessment of pest pressure to evaluate Economic risk from pest infestations is called__________?
Among the important green house gases two are found in higher concentration__________?
Primary air polluted is__________?
Diversity of animals and crop species in different ecosystems is called as__________?
A process in which most of the organisms are killed is known as__________?
The control and preservation of natural resources For present and future use is__________?
Organisms which are genetically modified are called__________?
The substance that an enzyme acts upon is known as__________?
Seed bag labeled with white colour indicates__________?
Hitting the seed with force against a hard surface to break seed dormancy is called__________?
The value of regression and correlation is the same when the correlation between two variables is__________?
A crop grown on residual moisture after harvesting rice is called__________?
The given off water vapours from the surface of leaves is called__________?
The oxygen concentration in the air is________________?
A. 30%
B. 21%
C. 16%
D. 45%
Correct Answer:
21%
✔
Last Updated:
March 30, 2019