NEET UG Botany — Plant - Growth and Development previous year questions with solutions.
Name the plant growth regulator which upon spraying on sugarcane crop, increases the length of stem, thus increasing the yield of sugarcane crop.
Inhibitory substances in dormant seeds cannot be removed by subjecting seeds to:
Removal of shoot tips is very useful technique to boost the production of tea leaves. This is because
It takes a very long time for pineapple plants to produce flowers. Which combination of hormones can be applied to artificially induce flowering in pineapple plants throughout the year to increase yield?
In order to increase the yield of sugarcane crop, which of the following plant growth regulators should be sprayed?
Fruit and leaf drop at early stages can be prevented by the application of
You are given tissue with its potential for differentiation in artificial culture. Which of the following pairs of hormones would you add to the medium to secure shoots as well as roots?
The Avena curvature is used for bioassay of:
Auxin can be bio assayed by:
Typical growth curve in plants is:
Which one of the following growth regulators is known as stress hormone?
Dr F. Went noted that if coleoptile tips were removed and placed on agar for one hour, the agar would produce a bending when placed on one side of freshly- cut coleoptile stumps. Of what significance is this experiment?
A few normal seedlings of tomato were kept in a dark room. After a few days, they were found to have become white-colored like albinos, Which of the following terms will you use to describe them?
Tissue culture technique can produce infinite number or new plants from a small parental tissue. The economic importance of the technique is in raising:
The pineapple which under natural condition is difficult to blossom has been made to produce fruits throughout the year by application of:
During seed germination its stored food is mobilised by
Which one of the following generally acts as an antagonist to gibberellins?
Through their effect on plant growth regulators, what do the temperature and light control in the plants?
Root development is promoted by
One of the commonly used plant growth hormone in tea plantations is
One of the synthetic auxin is :
Which one of the following acids is a derivative of carotenoids?
Which one of the following acids is a derivative of carotenoids ?
Somaclones are obtained by