1. Calyx splitting is common practice in
a) Lily
b)Marigold
c) Gladiolus
d) Carnation
2. Silver thiosulphate is commonly used to exchange flower longevity in
a) tulip
b) rose
c)lily
d)Carnation
3. In miniature carnations which operation is mostly practised?
a) Staking
b) long day
c)Pinching
d) none of these
4. First hybrid in Gladiolus was ----- developed in 1841
a)G. gandavensis
b)G.psittacinus
c)G.oppositiflorus
d)None of these.
5. Cyandin anthocyanin is present in-- colour
a) black
b)pink
c)bluish red
d)yellowish white
6. Which is most popular variety of roses in protected cultivation in India?
a)Grand gala
b)Konfetti
c)First red
d)All of these
7. Pelargenidin anthocyanin is present in --- colour
a)blue
b)white
c)yellow
d)orange red
8. Chemical defoliation in roses is done by
a)urea
b)auxin
c) GA
d) copper sulphate
9. Which is not a cultivar of China aster?
a) Rakhi
b) PG White
C) PG Violet
d)PG Purple
10. Plant form in Kochia is
a)informal
b)globular
c)conical
Answers
1. d) Carnation
2. d)Carnation
3. d) none of these
4. a)G. gandavensis
5. c)bluish red
6. c)First red
7. d)orange red
8. d) copper sulphate
9. a) Rakhi
10. d)columnar
