Which scientist worked on rust disease?

New world cotton is:

Choose the product that is derived from the style and stigma of a flower.

Match Column-$I$ with Column-$II$:
Column-$I$ (Forest Type) | Column-$II$ (Dominant Tree Species)
$(I)$ Tropical Rain Forests | $(a)$ $Shorea robusta$
$(II)$ Tropical Deciduous Forests | $(b)$ $Quercus$
$(III)$ Temperate Broad-leaf Forests | $(c)$ $Cedrus deodara$
$(IV)$ Temperate Coniferous Forests | $(d)$ $Dipterocarpus$

Cotton belongs to the family

Which of the following pairs is used as condiments?