1061. genetic purity is assessed through________________?
A. Inspection
B. Seed testing
C. Germination
D. All the a b c
1062. Hybrid seeds are developed because they_________________?
A. Produce better crop
B. Provide greater vigour
C. Are more uniform
D. All the above
1063. The systematic arrangement of soil in to groups or categories is called_________________?
A. Classification
B. Annuals
C. Perennials
D. Ranking
1064. One rooting hormone occurring naturally in plant is ___________________?
A. Indolebutyric
B. Indolacetic acid
C. Naphthalene acetic acid
D. None of the above
1065. The contribution of agriculture in the GDP of the country is____________________?
A. 25%
B. 35%
C. 30%
D. 40%
1066. Pakistan has a total forest area of about_________________?
A. 22 million ha
B. 32 million ha
C. 12 million ha
D. 20 million ha
1067. The sever salinity problem has taken lands out of production as___________________?
A. 50%
B. 10%
C. 45%
D. 30%
1068. In wheat total crop N uptake per ton of grain is about__________________?
A. 50-60 Kg
B. 20-30 Kg
C. 15-20 Kg
D. 70-80 Kg
1069. Natural water as pH equal to________________?
A. 1
B. 4
C. 9
D. 1
1070. A method of estimating seed vigour on the basis of color intensity o the stained seeds was described by______________?
A. Germ and Keitreiber (1954)
B. Kittock and Law (1963)
C. Maguire (1963)
D. Moore (1973)