Questions in plant-water-relation

Select	Question
	The scientist, who proposed that production of glycolic acid in guard cells is an important factor in stomatal opening, is
	‘Guttation’ word is given by
	Principle of working of all potometers is
	Which of the following method is adopted by plant for the absorption of water when a cut shoot is fitted in a potometer
	Majority potometers measure the rate at which water is
	Who had said that transpiration is a necessary evil''
	Osmoscope is used for
	Which of the following is used to determine the rate of transpiration in plants
	Who devised the apparatus to determine the degree of opening of stomata
	Potometer and clinostat are used to study