Phosphorus (P) released from plants after freezing at the end of the growing season may be a contributor to P in runoff from agricultural landscapes. We evaluated P release from alfalfa (Medicago sativa L.) and mixed grass species [mainly quackgrass (Agropyron repens)] after freezing or drying in laboratory and field studies. Freezing released 18-30 % of the total P as dissolved reactive P (DRP...

Alfalfa (Medicago sativa L.) persistence and forage and cow-calf production were evaluated on pastures containing smooth bromegrass with or without grazing-tolerant or hay-type alfalfa cultivars rotationally stocked in either a season-long or complementary system. In 1997, six 2.02-ha pastures were seeded with smooth bromegrass, a mixture of a grazing-tolerant alfalfa (Amerigraze variety) and s...

This study was evaluated the effects of different carbohydrate sources on fermentation profiles, chemical compositions, and correlation profiles compositions with water-soluble (WSC) alfalfa (Medicago sativa) silage. Alfalfa harvested at early flowering stage from third cutting in September 2018, wilted to 32% dry matter (DM) chopped into 1–2 cm pieces. Treatments included addition pectin (PEC)...

Leaves of tobacco plant cv. Xanthi-nc inoculated or systemically infected with potato virus Y, cucumber mosaic virus, potato virus X, potato aucuba mosaic virus or alfalfa mosaic virus showed varying degrees of resistance to infection with tobacco mosaic virus. The resistance was correlated with the appearance of at least three proteins not present in healthy plants. These were the proteins tha...

In June 2005, USDA/FDA/EPA deregulated the Roundup Ready trait in alfalfa. In August 2005, seed of the first Roundup Ready alfalfa varieties was offered for sale. This was the first biotech trait to be commercialized in alfalfa, and paved the way for new research supporting a second wave of biotech traits enhancing value in alfalfa. These new biotech traits can be divided into two categories: o...

Fall dormancy (FD) is an adaptive trait in alfalfa (Medicago sativa L.). It appeared in the regrowth process in late summer or early autumn after alfalfa was harvested. FD affects the biomass accumulation and winter survival in high latitude area. However, the molecular mechanism under FD is still not clear at present. Performing RNA-seq of fall dormant and nondormant alfalfa varieties at diffe...

It is assured that alfalfa (Medicago sativa L.) was introduced in Han dynasty. There are cognitive differences on whether Zhang Qian introduced alfalfa.. Based on the previous studies, research inductive method was used. The relationship between Zhang Qian and alfalfa introduction was analyzed from the motivation, experience and influence of Zhang Qian to the Western Regions and the image gener...

Materials and Methods The Neely-Kinyon LTAR site was established in 1998 to study the long-term effects of organic production in Iowa. Treatments at the LTAR site, replicated four times in a completely randomized design, include the following rotations: conventional CornSoybean (C-S), organic Corn-SoybeanOats/Alfalfa (C-S-O/A), organic CornSoybean-Oats/Alfalfa-Alfalfa (C-S-O/A-A) and organic Co...

Four ruminally cannulated and two intact multiparous Holstein cows were used in a 3 × 3 replicated Latin square design to evaluate digestibility and rumen traits in lactating dairy cows in response to feeding wet corn gluten feed and a novel product containing raw soybean hulls and corn steep liquor. Three dietary treatments were fed in the experiment. The control contained (DM basis) 30% alfal...

Aphanomyces euteiches causes root rot disease of alfalfa, and two races of the pathogen have been identified based on the reaction of established check cultivars. A majority of alfalfa cultivars grown in regions where A. euteiches is prevalent have resistance to race 1 of the pathogen, but very few cultivars have resistance to race 2. The genetic basis of resistance in alfalfa to A. euteiches i...