Q5 of 77 Page 65

Name a man-made cereal? Trace how it was developed and where is it used?

The man made cereal is Triticale.

Development of Triticale:


This man made cereal is a hybrid and was developed by crossing rye with wheat.


Its name indicates its origin. Triti from Triticum(wheat) and ale from Secale(rye). In the hybrid the wheat is used as the female parent and the rye is used as male parent that is the pollen donar.


Mostly, the diploid rye cereal having 14 chromosomes was crossed by a tetraploid wheat parent (4n=28) resulting in the hexaploid offspring.


Uses:


This cereal is used as fodder. The fodder is the food for animals.


More from this chapter

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3

In animal husbandry, if two closely related animals are mated for a few generations, it results in loss of fertility and vigour. Why is this so?

 4

In the area of plant breeding, it is important not only to preserve the seeds of the variety being cultivated, but also to preserve all its wild relatives. Explain with a suitable example.

 6

Fill in the blanks


 7

A few statements are given below followed by a set of terms in a box. Pick the correct term and write it against the appropriate statement

a. Mating of closely related individuals within the same breed


b. Mating of animals of same breed but having no common ancestors on either side for 4-6 generations


c. Mating of animals of two different species


d. Breeding of animals belonging to different breeds


(i) Cross breeding, (ii) Inter-specific hybridization, (iii) Out breeding, (iv) Out crossing, (v) Inbreeding