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Nucleus and Breeder seed production of field crops

Total questions: 30

Worksheet time: 15mins

Name
Class
Date
1.

The homozygous and homogeneous condition is present in

a)

Inbreds and Purelines

b)

Clones and purelines

c)

Hybrids and purelines

d)

Inbreds and clones

2.

The isolation distance for breeder seed production of sorghum is

a)

200 m

b)

400 m

c)

600 m

d)

300m

3.

The female to male (A:B) ratio in sorghum for hybrid seed production is

a)

4:2

b)

6:2

c)

6:4

d)

2:1

4.

The isolation distance required for production of breeder seed in wheat is

a)

3mt

b)

5mt

c)

4mt

d)

6mt

5.

The isolation distance from loose smut infected wheat, triticale or rye field during breeder seed production of wheat should be there within

(a)  

6.

Breeder seed contains the colour tag / label is

a)

White label

b)

Yellow label

c)

Golden yellow

d)

Blue

7.

Seed moisture content in the stored seed of rice and wheat should be

a)

10-12%

b)

15-20%

c)

12-15%

d)

15-18%

8.

The varieties which are particularly suitable for tribal and hilly regions is

a)

OPV

b)

Purelines

c)

Hybrids

d)

synthetics

9.

The varieties which have been derived through interbreeding of lines with good GCA are

a)

Composites

b)

Synthetics

c)

Hybrids

d)

Purelines

10.

GA3 mixed in water and applied to rice to enhance

a)

Tillering

b)

Panicle exertion

c)

Germination

d)

Maturing

11.

Supplementary pollination through rope pulling or rod shaking is done to enhance

a)

Anthesis

b)

Self pollination

c)

Cross pollination

d)

Panicle exertion

12.

Off types are pollen shedders in

a)

B line

b)

A line

c)

R line

d)

B and R line

13.

The test conducted to know the the genetic purity of the seed is

a)

DUST test

b)

Grow out test

c)

Germination test

d)

Viability test

14.

Isolation distance of ____________ is necessary for nucleus seed production of A line in rice

a)

600 mt

b)

700 mt

c)

400 mt

d)

500 mt

15.

Isolation distance for producing nucleus seed of rice varieties is

a)

3m

b)

4m

c)

5m

d)

6m

16.

Female to male ratio followed for nucleus seed production of A line in rice is

a)

4:2

b)

6:2

c)

8:2

d)

10:2

17.

Female to male ratio followed for breeder seed production of a line in rice is

a)

6:2 or 8:2

b)

8:2 or 10:2

c)

4:2 or 6:2

d)

6:2 or 10:2

18.

The isolation distance followed for nucleus and breeder seed production of A, B, R and OPVs in pearlmillet is

a)

1000 m

b)

800 m

c)

500 m

d)

1200 m

19.

In pearlmillet, A:B ratio followed during hybrid seed production si

a)

2"1

b)

4:2

c)

6:2

d)

8:2

20.

Pustovoit method is recommended for variety maintenance in

a)

Maize

b)

Pearlmillet

c)

Sorghum

d)

Sunflower

21.

The isolation distance followed during varietal and Parental lines (ABR) maintenance / seed production in Sunflower is

a)

500 m

b)

800 m

c)

1000 m

d)

1200 m

22.

The A:B ratio followed in breeder seed production of A line in sunflower is

a)

3:1

b)

6:4

c)

8:4

d)

5:2

23.

The factors which affect genetic purity of varieties is

a)

Mechanical mixtures

b)

Mutations

c)

Out crossing

d)

All of these

24.

Nucleus seed and Breeder seed are produced and maintained by

a)

Seed Certification agency

b)

Breeder

c)

Farmers

d)

none of these

25.

The class of seed certified by seed certification agency is

a)

Nucleus and breeder

b)

Breeder and foundation

c)

Foundation and certified

d)

Nucleus and foundation

26.

The foundation seed has the colour tag

a)

White

b)

Golden yellow

c)

Azure blue

d)

Green

27.

The certified seed has the colour tag

a)

White

b)

Golden yellow

c)

Azure blue

d)

Green

28.

Foundation seed is the progeny of

a)

Breeder seed

b)

Nucleus seed

c)

Foundation seed itself

d)

Certified seed

29.

Foundation seed is the source for ___________ seed production

a)

Breeder seed

b)

Foundation seed

c)

Certified seed

d)

Truthfully labelled seed

30.

The basis of the total seed production chain is

a)

Nucleus seed

b)

Breeder seed

c)

Foundation seed

d)

Certified seed