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WorksheetsNucleus and Breeder seed production of field crops
Total questions: 30
Worksheet time: 15mins
The homozygous and homogeneous condition is present in
Inbreds and Purelines
Clones and purelines
Hybrids and purelines
Inbreds and clones
The isolation distance for breeder seed production of sorghum is
200 m
400 m
600 m
300m
The female to male (A:B) ratio in sorghum for hybrid seed production is
4:2
6:2
6:4
2:1
The isolation distance required for production of breeder seed in wheat is
3mt
5mt
4mt
6mt
The isolation distance from loose smut infected wheat, triticale or rye field during breeder seed production of wheat should be there within
(a)
Breeder seed contains the colour tag / label is
White label
Yellow label
Golden yellow
Blue
Seed moisture content in the stored seed of rice and wheat should be
10-12%
15-20%
12-15%
15-18%
The varieties which are particularly suitable for tribal and hilly regions is
OPV
Purelines
Hybrids
synthetics
The varieties which have been derived through interbreeding of lines with good GCA are
Composites
Synthetics
Hybrids
Purelines
GA3 mixed in water and applied to rice to enhance
Tillering
Panicle exertion
Germination
Maturing
Supplementary pollination through rope pulling or rod shaking is done to enhance
Anthesis
Self pollination
Cross pollination
Panicle exertion
Off types are pollen shedders in
B line
A line
R line
B and R line
The test conducted to know the the genetic purity of the seed is
DUST test
Grow out test
Germination test
Viability test
Isolation distance of ____________ is necessary for nucleus seed production of A line in rice
600 mt
700 mt
400 mt
500 mt
Isolation distance for producing nucleus seed of rice varieties is
3m
4m
5m
6m
Female to male ratio followed for nucleus seed production of A line in rice is
4:2
6:2
8:2
10:2
Female to male ratio followed for breeder seed production of a line in rice is
6:2 or 8:2
8:2 or 10:2
4:2 or 6:2
6:2 or 10:2
The isolation distance followed for nucleus and breeder seed production of A, B, R and OPVs in pearlmillet is
1000 m
800 m
500 m
1200 m
In pearlmillet, A:B ratio followed during hybrid seed production si
2"1
4:2
6:2
8:2
Pustovoit method is recommended for variety maintenance in
Maize
Pearlmillet
Sorghum
Sunflower
The isolation distance followed during varietal and Parental lines (ABR) maintenance / seed production in Sunflower is
500 m
800 m
1000 m
1200 m
The A:B ratio followed in breeder seed production of A line in sunflower is
3:1
6:4
8:4
5:2
The factors which affect genetic purity of varieties is
Mechanical mixtures
Mutations
Out crossing
All of these
Nucleus seed and Breeder seed are produced and maintained by
Seed Certification agency
Breeder
Farmers
none of these
The class of seed certified by seed certification agency is
Nucleus and breeder
Breeder and foundation
Foundation and certified
Nucleus and foundation
The foundation seed has the colour tag
White
Golden yellow
Azure blue
Green
The certified seed has the colour tag
White
Golden yellow
Azure blue
Green
Foundation seed is the progeny of
Breeder seed
Nucleus seed
Foundation seed itself
Certified seed
Foundation seed is the source for ___________ seed production
Breeder seed
Foundation seed
Certified seed
Truthfully labelled seed
The basis of the total seed production chain is
Nucleus seed
Breeder seed
Foundation seed
Certified seed
