Type of Document	Dissertation
Author	Auda, Hamid
URN	etd-01122010-020300
Title	Tillering and carbohydrate content of orchardgrass as influenced by environmental factors
Degree	PhD
Department	Agronomy
Advisory Committee	Advisor Name Title Blaser, Roy E. Committee Chair Brown, R. H. Committee Member LeFevre, C. W. Committee Member Rich, Charles I. Committee Member Schmidt, Richard E. Committee Member
Keywords	Carbohydrates
Date of Defense	1964-06-05
Availability	restricted
Abstract Experiments were conducted in the field, greenhouse, and controlled environment chamber to study single environmental factors and their interrelationship to ti11ering, growth, and carbohydrate content of orchardgrass. Several factorial treatment combinations were imposed on individual tillers from one orchardgrass genotype in four experiments. 1) Tillering and yield of orchardgrass were best under normal or rull light intensity. Reduced light intensity in Experiments I and IV lowered tillering by 73 and 26%, respectively. There was a marked increase in water soluble carbohydrates as light energy increased up to normal sunlight. 2) Tiller1ng and growth were very low at 50-60∘. as compared with 70-80∘ night-day temperature. There was a sharp increase in water soluble carbohydrates of the stubble with the low as compared with the higher temperature. Carbohydrate accumulation was low at the high temperature due to the rapid growth and tillering.
Files	Filename       Size       Approximate Download Time (Hours:Minutes:Seconds)     28.8 Modem   56K Modem   ISDN (64 Kb)   ISDN (128 Kb)   Higher-speed Access  LD5655.V856_1964.A823.pdf 5.21 Mb 00:24:07 00:12:24 00:10:51 00:05:25 00:00:27 next to an author's name indicates that all files or directories associated with their ETD are accessible from the Virginia Tech campus network only.

If you have questions or technical problems, please Contact DLA.