Importing better varieties and plants from outside and acclimatising them to local environment is called _____.

(a)

cloning

(b)

heterosis

(c)

selection

(d)

introduction

Dwarfing gene of wheat is ______.

(a)

pal 1

(b)

Atomita 1

(c)

Norin 10

(d)

pelita 2

Crosses between the plants of the same variety are called ____.

(a)

interspecific

(b)

inter varietal

(c)

intra varietal

(d)

inter generic

Progeny obtained as a result of repeat self pollination a cross pollinated crop to called

(a)

pure line

(b)

pedigree line

(c)

inbreed line

(d)

heterosis

Jaya and Ratna are the semi dwarf varieties of ______.

(a)

wheat

(b)

rice

(c)

cowpea

(d)

mustard