Download or read book Growth and Forage Quality of Tall Fescue Festuca Arundinacea Schreb and Perennial Ryegrass Lolium Perenne L as Affected by Mefluidide written by Sabam Oloan Manurung and published by . This book was released on 1982 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: Field study with 5 tall fescue genotypes treated at the vegetative growth stage, with 0, 0.28, 0.56, and 0.84 kg/ha of mefluidide was initiated in July, 1980. The regrowth of these plants were again treated at the booting growth stage in April, 1981, with the same rates of mefluidide as in the first experiment. In addition, three rates of mefluidide (0, 0.28, and 0.56 kg/ha) were applied at the floral initiation stage of perennial ryegrass cv. Linn in March, 1981. Four varieties of tall fescue were transplanted from the field into 6-inch pots in February, 1981, and grown under 50/60°F and 70/80°F night/day temperature regimes in growth chambers. Mefluidide at the rate of 0, 0.28, and 0.56 kg/ha were applied at the pre-floral or at floral initiation growth stage. The same varieties were again transplanted from the field into 6-inch pots in April, 1981, and grown under the same temperature regimes and treated at pre-booting or at booting growth stage with the same rate of mefluidide as those in the first growth chamber experiment. Mefluidide interacted with tall fescue genotypes and also resulted in a reduction in dry matter yield, ADF (Acid Detergent Fiber) and increased CP (Crude Protein) content in both tall fescue trials in the field. The WSC (Water Soluble Carbohydrate) concentration was reduced by mefluidide applied at the vegetative growth stage in the first experiment, but it was increased at the booting growth stage application of mefludide on regrowth of these plants. Late applications of mefluidide did maintain forage quality of tall fescue with some elimination of dry matter yield reduction caused by earlier application. In perennial ryegrass cv. Linn, mefluidide reduced stem dry matter production, but did not affect leaf dry matter yield. This was accompanied by high leaf/stem ratios and retardation of plant height. Fertile tiller production was inhibited, accompanied by reduction in ADF, increased stem CP and increased WSC of leaf and stem tissue. Under the 70/80°F night/day temperature regime, all varieties produced a higher dry matter yield than plants under a 50/60°F night/ day temperature regime. However, WSC content of leaf and stem were higher in the low temperature regime. There were indications that mefluidide reduced ADF and WSC content of leaf and stem tissues, but increased leaf and stem CP under both temperature regimes in both experiments. This was accompanied by high leaf/stem ratios of treated plants.
Download or read book O S U Theses and Dissertations 1978 1982 written by Oregon State University and published by . This book was released on 1983 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings Soil and Crop Science Society of Florida written by Soil and Crop Science Society of Florida and published by . This book was released on 1987 with total page 932 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agrindex written by and published by . This book was released on 1994 with total page 1014 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physiological Effects of Drought on Perennial Ryegrass Lolium Perenne L and Tall Fescue Festuca Arundinacea Schreb written by Tony R. Butler and published by . This book was released on 2008 with total page 149 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemical Manipulation of Crop Growth and Development written by J S McLaren and published by Butterworth-Heinemann. This book was released on 2013-10-22 with total page 579 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemical Manipulation of Crop Growth and Development presents a critical review of the plant growth regulators in field crops. It discusses the strategies to discover plant growth regulators for agronomic crops; the methods of modifying stomatal movement; and the possible use of chemicals for photorespiration control. Some of the topics covered in the book are the hormonal control of photosynthesis and assimilate distribution; manipulation of crop growth by ethylene and some implications of the mode of generation; genetic and chemical manipulation of crops to confer tolerance to chemicals; and effects of allelochemicals on crop growth and development. The control of development of potato plant by using endogenous and exogenous growth regulators is covered. The analysis of crop physiology to assess plant growth regulation in sugar beet is also discussed. An in-depth analysis of the influence of auxin antagonists on pod and seed number is provided. The effect of foliar applications of synthetic plant growth regulators on the agronomic characteristics of field-growth corn is presented. A chapter is devoted to the use and effect of cerone in developing winter barley. The book can provide useful information to farmers, botanists, students, and researchers.
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1981 with total page 1852 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Root and Top Growth of Tall Fescue Festuca Elatior L and Perennial Ryegrass Lolium Perenne L as Influenced by Defoliation and Levels of Soil Nitrogen written by Nephus Jefferson and published by . This book was released on 1958 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of tall fescue Festuca Arundinacea Schreb perennial ryegrass Lolium Perenne L and Kentucky bluegrass Poa Pratensis L turfgrass cultivars in Italy written by Simone Magni and published by . This book was released on with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agronomy News written by and published by . This book was released on 1982 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sept.-Oct. issue includes list of theses and dissertations for U.S. and Canadian graduate degrees granted in crop science, soil science, and agronomic science during the previous academic year.
Download or read book Bibliography of Agriculture with Subject Index written by and published by . This book was released on 1979 with total page 1336 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comparative Response of Tall Fescue Lolium Arundinaea Schreb and Perennial Ryegrass Lolium Perenne L Swards to Variation in Defoliation Interval and Height written by Salesi Kaufononga and published by . This book was released on 2015 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Temperature Effects on Growth and Nutrient Concentration in Tall Fescue Festuca Arundinacea Schreb Selections Differing in Forage Yield written by Rioh Rizzio and published by . This book was released on 1980 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study was undertaken to better understand plant characteristics related to high and low forage yield in tall fescue selections as affected by temperature. Dry matter distribution into yield components in three different temperature regimes was evaluated. Root growth, dark respiration and nutrient concentration were also examined. The four diverse tall fescue selections grown under controlled environmental conditions exhibited yields similar to those noted in the field. Selection TFM 26 produced more forage yield at the low temperature while TFK 12 produced more at the high temperature indicating a seasonal growth response. However, TFM 26 was the highest yielding selection when averaged over the three temperature regimes. High yielding TFM 26 had the greatest leaf area and low yielding TFK 4 the least. Higher yielding TFM 26 and TFK 12 had more leaf area per tiller than the other selections and TFM 26 had the greatest number of tillers. Root volume had a closer association with forage yield than root dry matter (RDM). Winter-growing TFMs had greater RDM than the summer-growing TFKs. Root density was higher for winter-growing TFM 16 which appeared to be partitioning more root dry matter into root 'bulk' than root volume. Winter-growing TFMs had higher root-to- shoot ratios than TFKs suggesting that winter-growing selections distribute their dry matter differently. Growth analysis showed that relative growth rates were higher for high yielding selections. High yielding selections also had a higher relative leaf area growth rate (RLAGR). A rapid leaf area development may be producing more available photosynthate at an earlier growth stage giving high yielding selections their yield advantage. The relative root growth rate (RRGR) was greater for winter-growing TFMs than for TFKs. The high RRGR of TRM 26 may be related to its high RLAGR. The harvest index was higher for summer-growing TFKs than winter-growing TFMs. Dark respiration rates in roots and leaves did not differ throughout the experiment. Mineral analysis showed that K accumulation per unit of root volume was greater for winter-growing TFM 16 than TFM 26, however, TFM 26 had greater K per gram of root material. The data suggest that winter-growing TFM 16 may absorb and translocate more K than TFM 26. Summer-growing TFK 12 had low Mg at the low temperatures suggesting that animal consumption may induce a Mg deficiency (grass tetany) when grazed during low temperatures.
Download or read book The Effects of Phosphorus and Nitrogen Fertilization on Tall Fescue Nutrient Content Yield and Baleage Quality written by Cheyenne A. Arthur and published by . This book was released on 2015 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tall fescue (Festuca arundinacea Schreb.) is a cool season perennial grass commonly used in year-round forage production systems. Producers often wrap large round bales of tall fescue in plastic. The fermented product of this practice, termed baleage, allows the forage to be stored for later feeding. During periods of rapid growth in the spring and the fall, the nutrient content of tall fescue can be imbalanced and cause nutritional disorders in grazing animals. To improve the nutrition of tall fescue, it is known that fertilization of phosphorus (P) can help improve leaf nutrient content of P, magnesium (Mg), and calcium (Ca). Additionally, nitrogen (N) fertilization is known to improve forage quality. The objective of this study was to examine the effects of both N and P spring fertilization on tall fescue nutrient content and yield, as well as the effects of these treatments on baleage quality from these pastures. A 2014-2015 field study utilized eight different two-acre pastures, each with a P rate of 0, 25, 50, or 100 lbs P/A and a N rate of 0 or 50 lbs N/A. These studies found that N and P fertilizer did not affect yield and did not change tall fescue leaf calcium or magnesium content; however leaf P was increased with P fertilization. N treatments increased baleage protein content in the 2014-2015 study, but other quality measures were not affected by N and P treatments. The 2015-2016 field study using only P treatments and more replicates will be completed and replicated an additional year to further elucidate effects of P fertilization on tall fescue baleage.
Download or read book Yield and Quality of Tall Fescue Festuca Arundinacea Schreb Forage in Winter written by Michael Collins and published by . This book was released on 1975 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fescue Toxicosis and Management written by Craig A. Roberts and published by John Wiley & Sons. This book was released on 2021-06-30 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fescue toxicosis continues to be one of the most devastating problems in forage–livestock agriculture. Because there is presently no cure, using the most up-to-date management and prevention approaches are crucial. The 2nd edition of this important guide presents an easy-to-understand description of this complex problem, along with recommendations that are practical for real farm use.
Download or read book Quality and Yield of Tall Fescue Fescue Arundinacea Schreb as Affected by Season Legume Combinations and Nitrogen Fertilization written by Edward B. Rayburn and published by . This book was released on 1977 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
