title: LIMITATIONS OF BLACKMAN'S LAW OF LIMITING FACTORS AND HARDER'S CONCEPT OF RELATIVE MINIMUM AS APPLIED TO PHOTOSYNTHESIS.
authors.affiliation: Department of Plant Physiology, Institute of Agricultural Research, Benares Hindu University, India.
authors.forename: B N
authors.initials: BN
authors.lastname: Singh
authors.forename: K N
authors.initials: KN
authors.lastname: Lal