Q.179) style="margin-right:8px">Which one of the felling phytohormones promotes nutrient mobdilation which helps in the delay of leaf senescerice in plants?
A) style="margin-right:8px">Cytokinin
B) style="margin-right:8px">Ethylene
C) style="margin-right:8px">Alucinic acid
D) style="margin-right:8px">Gibberellin
Cytokinin is a plant hormone that promotes cell division and can delay leaf senescence by promoting nutrient mobilization within the plant. This helps in maintaining the health of the plant for a longer period.
Hence, the correct answer is Option (1).