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)