Avena coleoptile test to find out the quantity of growth promoting hormones was discovered by –
Primary precursor or I.A.A. is–
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The biological activity of I.A.A. is tested by–
Indole, 3 acetic acid, called as auxin was first isolated from–
Which of the following effects of auxins is of wide application?
Stem elongation is affected by–
Apical dominance means–
Auxin inhibits the growth of–
Induction of rooting in stem cutting by auxin treatment would be beneficial in which of the following–
Which of the following is not natural occuring plant hormone?
Seedless fruits can be obtained by treating the unpollinated ovaries with–
Leaf fall occurs when the content of–
Substance which originate at the tip of stem to control growth–
Which of the growth substance acts as a stimulant during nodule formation in leguminous plant–
Auxanometer is meant for measuring–
Apical dominance in higher plants is due to–
Parthenocarpy is the production of–
Auxin is mainly produced by–
Indole acetic acid generally inhibits the growth of –
Fruit drop is caused by–
Fruit drop is caused by–
In plants growth is–
Which one of the following is motivation force for growth–
Growth is primarily affected by two climatic factors which are?
Which of the following instrument can be used to record plant growth by seconds?
In a growing plant, the first phase during the process of growth is–
The classical experiments on growth were performed by–
The natural plant hormones were first isolated from–
Which one of the following nutrients is concerned with the growth of the plants in view or their role in synthesis of auxin–
Plants bend toward the light because–