Question

In the TIMELINE of Plant Tissue Culture, briefly what six major advancements were made in these years:

year	Researchers	contribution
1902	Haberlant
1934	White
1939	White
1950	Miller, Skoog
1950	E Ball
1983	Chilton

Answer 1

Ans.

1902, Haberlant --- He was first to do in vitro culture of isolated plant cell on artificial medium.

1934, White --- He demonstrated capabilities of indefinite culture of tomato roots for long periods.

1939, White --- He did callus culture of tobacco rumour tissue from hybrid Nicotiana glauca and Nicotiana langsdorfii.

1950(in fact 1955), Miller and Skoog --- They discovered a potent cell division factor called Cytokinin.

1950(in fact 1955), E.Ball --- He performed culture of gymnosperm tissues.

1983, Chilton --- From single cell transformation or gene insertion he produced transformed tobacco plants.