What are the characteristics of desirable plants produced through plant breeding?

Given below are the steps involved in a plant breeding program. Identify the correct sequence of these steps.
$i$. Collection of variability
$ii$. Hybridization
$iii$. Evaluation and selection of parents
$iv$. Testing,release,and commercialization of new cultivars
$v$. Selection and testing of superior recombinants

What is the primary objective of plant breeding?

Modern plant breeding started in

Which of the following is one of the most important reasons why wild varieties of plants should be preserved?

Semi-dwarf rice varieties were developed from . . . . . . in Philippines.