Long day plant among the following is

Solution (By Examveda Team)

Long day plant among the following is cluster bean.
The plants which require more exposure to light are called long-day plants (LDP).
The cluster bean is a tropical plant. It requires a warm growing season. The crop requires 30 to 35°C temperatures at the sowing time for proper germination and 32 to 38°C temperature encourages good vegetative growth, but the high temperature at the flowering stage can result in premature flower drop. It can tolerate temperatures as high as 45 - 46°C. It is a photosensitive and indeterminate crop.