Question

Given are the events that are observed in an artificial hydridisation programme. Arrange them in the correct sequential order and select the correct option.
$1$. Rebagging;
$2$. Selection of parents;
$3$. Bagging;
$4$. Dusting the pollen on stigma;
$5$. Emasculation;
$6$. Collection of pollen from make parent.

• A. $2\to 3\to 5\to 6\to 4\to 1$
• B. $2\to 5\to 3\to 6\to 4\to 1$
• C. $5\to 2\to 3\to 6\to 1\to 4$
• D. $2\to 3\to 6\to 4\to 5\to 1$

Answer 1

Answer: (B)

$2\to 5\to 3\to 6\to 4\to 1$

Artificial hybridisation is one of the major approaches of crop improvement programme. In such crossing experiments it is important to make sure that only the desired pollen grains are used for pollination and the stigma is protected from contamination (from unwanted pollen). This is achieved by emasculation and bagging techniques.

The process of hybridization involved following steps:

i) Choice of the Parents:

ii) Evaluation of the parents,

iii) Selfing of parents,

iv) Emasculation,

v) Bagging

vi) Tagging

vii) Pollination

viii) Harvesting

ix) Threshing, drying and storage

So, the correct option is '2→5→3→6→4→1'.