Nucleus and Breeder seed production of field crops

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