منابع مشابه
Nitrate Assimilation during Vegetative Regrowth of Alfalfa.
Dry matter accumulation, nitrate reductase activity of various organs, nitrate accumulation, nitrogen derived from nitrate, and nitrogen content were studied during 17 days of vegetative regrowth of harvested (detopped) alfalfa (Medicago sativa L.). Seedlings were grown in the glasshouse and treated with 0, 40, and 80 kilograms N per hectare applied as K(15)NO(3) to determine whether reduced ni...
متن کاملVegetative regeneration capacities of five ornamental plant invaders after shredding.
Vegetation management often involves shredding to dispose of cut plant material or to destroy the vegetation itself. In the case of invasive plants, this can represent an environmental risk if the shredded material exhibits vegetative regeneration capacities. We tested the effect of shredding on aboveground and below-ground vegetative material of five ornamental widespread invaders in Western E...
متن کاملWalnut Rootstock Transformation and Regeneration from Vegetative Tissue
The primary goal of this proposal is to develop novel regeneration technologies needed to engineer walnut rootstocks for pest and disease resistance. The productivity of the walnut industry of California is dependent the availability of superior rootstocks to combat soil disease and pest problems. Individual selections displaying resistance to either Phytophthora crown and root rots or to root ...
متن کاملEffects of Salt Stress on Vegetative Growth and Ion Accumulation of Two alfalfa (Medicago sativa L.) Cultivars
Salt stress is one of the most chalanging abiotic stresses affecting natural productivity and causing significant croplosses worldwide. A greenhouse experiment was conducted to evaluate the response of two alfalfa cultivars (Bamiand Hamedani) to 6 levels of salinity (0 as control, 25, 50, 75, 100, 125 mM NaCl) at the College of Agriculture,Shiraz University, Shiraz, Iran in 2008. Plant dry weig...
متن کاملChanging the Gap Dynamics Paradigm: Vegetative Regeneration Control on Forest Response to Disturbance
Understanding the manner in which changes in disturbance regimes will affect forest biodiversity is an important goal of global change research. Prevailing theories of recruitment after disturbance center on the role of pioneer species; predictions of forest biodiversity focus almost exclusively on dispersal and shade tolerance while vegetative reproduction is virtually omitted from models and ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Science
سال: 1915
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.42.1073.126