Defoliation of wall barley under sub-humid Mediterranean conditions

2003 ◽  
Vol 54 (1) ◽  
pp. 53 ◽  
Author(s):  
Moh'd Khair J. El-Shatnawi ◽  
Louy Z. Al-Qurran ◽  
Khalil I. Ereifej ◽  
Munir Turk
Keyword(s):  
Protein Content ◽  
Crude Protein ◽  
Field Trials ◽  
Crude Protein Content ◽  
Growing Seasons ◽  
Permanent Pasture ◽  
Hordeum Murinum ◽  
Southern Mediterranean ◽  
Winter Annual ◽  
Shoot Weight

Wall barley (Hordeum�murinum) is a winter annual, native to Europe and the southern Mediterranean region. It can be used to establish permanent pasture in semi-arid rangeland. The crude protein content and response of wall barley to time of defoliation were investigated during 2 growing seasons in the northern mountains of Jordan. Field trials were conducted in the 1999–2000 and 2000–2001 growing seasons in Samta (32�23′N, 35�50′E) at an elevation of 1043 m. The highest crude protein content (P < 0.05) of 24.8% was recorded on 28 February and it thereafter declined gradually to reach the lowest values (4%) at maturity. The fiber content gradually increased and peaked (56.0%) when the plants reached maturity. Clipping plants on 28 February and 15 March produced shorter plants but encouraged tillering. Oven-dry shoot weights of individual plants and the population showed similar responses to time of defoliation during both years. Clipping the individuals on 28 February (8.1 and 4.7 g/plant, in respective years) and 15 March (8.2 and 4.6�g/plant, respectively) did not reduce the plant shoot weight. Forage amounts produced when plants were clipped�on 28�February and 15 March were similar to the amounts of forage produced from unclipped plants (1816 and 959�kg/ha, respective years). Clipping plants on 30 March and 15 April inhibited seed production. Defoliation during the early vegetative stage optimised seed yield and forage quantity and quality.

scholarly journals Effect of harvesting time on forage yield and quality of maize

2018 ◽  
Vol 34 (3) ◽  
pp. 345-353 ◽  
Author(s):  
Violeta Mandic ◽  
Zorica Bijelic ◽  
Vesna Krnjaja ◽  
Aleksandar Simic ◽  
Maja Petricevic ◽  
...  
Keyword(s):  
Protein Content ◽  
Crude Protein ◽  
Dry Matter ◽  
Matter Content ◽  
Forage Yield ◽  
Dry Matter Content ◽  
Crude Protein Content ◽  
Maize Hybrid ◽  
Growing Seasons ◽  
Yield And Quality

Maize is the very important silage source in the world. Timely harvesting ensure high maize forage yield and quality. Therefore, the study focused on the effects of four harvesting times (starting at the 12 August every 7 days) on yield and qualitative parameters of forage green mass of maize hybrid ZP 677. The experiment was set in Vojvodina Province, Serbia, during the 2013 and 2014 growing seasons. Plant height, stem diameter, number of leaves per plant, ear percentage, forage yield, dry matter content and crude protein content were higher, while stem percentage was lower in 2014 with favorable climatic condition. Forage yield, crude protein content, ADF and NDF decreased, while dry matter content significantly increased with delay in harvesting. The maize hybrid should be harvested when the milk line is three-quarter of the way down the grain that is in the third decade of August.

scholarly journals Managing Chinese Privet for White-Tailed Deer

1998 ◽  
Vol 22 (4) ◽  
pp. 227-230 ◽  
Author(s):  
Karl A. K. Stromayer ◽  
Robert J. Warren ◽  
Timothy B. Harrington
Keyword(s):  
Protein Content ◽  
Odocoileus Virginianus ◽  
Crude Protein ◽  
Ground Level ◽  
Post Treatment ◽  
Forest Understory ◽  
Crude Protein Content ◽  
Chinese Privet ◽  
Ligustrum Sinense ◽  
Growing Seasons

Abstract After cutting forest understory Chinese privet (Ligustrum sinense) stands to ground level in northwestern Georgia, we assessed privet regrowth production and use by white-tailed deer (Odocoileus virginianus), 1 yr post-treatment. We then assessed privet browse availability and crude protein (CP) content 2 and 3 growing seasons post-treatment on cut and uncut plots. Privet regrew vigorously and was used heavily by deer the first winter after cutting, but privet browse availability and crude protein content did not differ between cut vs. uncut plots 2 and 3 growing seasons post-treatment. Although our sample sizes were too small to demonstrate an increase in privet browse availability after cutting, this practice may be a sustainable and inexpensive way of maintaining deer forage availability, as privet often grows out of reach of deer. South. J. Appl. For. 22(4):227-230.

Further Trials of Pearl Lupins in England

1976 ◽  
Vol 12 (2) ◽  
pp. 97-102 ◽  
Author(s):  
G. B. Masefield
Keyword(s):  
Protein Content ◽  
Crude Protein ◽  
Oil Content ◽  
Sowing Date ◽  
Field Trials ◽  
Crop Plants ◽  
Crude Protein Content ◽  
Preliminary Work ◽  
Lupinus Mutabilis ◽  
Toxic Alkaloids

SUMMARYFollowing preliminary work in the previous year, further field trials were carried out with strains of the pearl lupin (Lupinus mutabilis Sweet) at Oxford, England. Two strains originating in Argentina and one in Bolivia were considered to show promise for development as crop plants in England if toxic alkaloids can be bred out of them. The seeds harvested had a crude protein content from 38·6 to 41·8% and an oil content from 13·1 to 14·4%. Advice is given, based on these trials, on sowing date and spacing.

scholarly journals Uptake of lead by futed pumpkin (Telfairia occidentalis Hook F.) in an ultisol

2011 ◽  
Vol 3 (1) ◽  
pp. 10-19
Author(s):  
Ehi Robert Orhue ◽  
Uzu Frank
Keyword(s):  
Organic Carbon ◽  
Protein Content ◽  
Crude Protein ◽  
Sandy Loam ◽  
Lead Nitrate ◽  
Phosphorus Uptake ◽  
Field Trials ◽  
Block Designs ◽  
Crude Protein Content ◽  
Telfairia Occidentalis

Pot and field trials were conducted at the Faculty of Agriculture, University of Benin to determine the influence of Pb on some agronomic characters of Telfairia occidentalis and some chemical properties of soil. Completely randomized and randomized completely block designs were used in greenhouse and field trials respectively. In the greenhouse trial, lead nitrate (Pb(N03)2 ) was applied at rates of 0, 50, 100 and 200 mg per 5 kg sieved and air-dried soil obtained from a depth of 0-15 cm. The pot rates equivalent to 0, 20, 40 and 80 kgha-1 wereused in the field trial. Results indicated that the soil used was texturally sandy loam and an ultisol as demonstrated by its low base saturation. The pH, organic carbon, Effective Cation Exchange Capacity (ECEC), Exchangeable acidity, N, K, Mg, Ca, Na, Fe, Mn, Zn, free Fe and Al oxides, Amorphous Fe and Al oxides content of the soil decreased inconsistently. The organic carbon however increased in the field while the available P appreciated in the entire trials. The Pb content of the soil increased with the levels of Pb treatments when compared with the control throughout the trials. The N, P, K, Mg, Ca, Na, Fe, Mn and Zn content of shoot and root as well as their uptake also decreased consistently with increasing Pb treatments. In addition, the Pb content as well as uptake by the shoot and root also increased consistently with increased rates of the Pb applied in the trials with the minimum levels of the Pb content and uptake recorded at the control treatments. The crude protein content decreased with increased heavy metal treatments in both root and shoot with the control having the highest crude protein content. The highest crude protein percentage was recorded in the shoot compared to the root. A decrease in the dry matter yield with increased Pb treatments in shoot and root was recorded in the trials. Results also showed that the Pb influenced the height, collar girth, leaf area and number of leaves with control treatments higher than other treatments at final harvest. The manifestation of anthocyanin pigmentation in 200 mg Pb and 80 kg Pb ha-1 treatments revealed the negative influence of the Pb on the phosphorus uptake by Telfaria occidentalis.

scholarly journals The influence of the year, fore-crops and fertilisation on yield and content of crude protein in spring barley

2011 ◽  
Vol 51 (No. 3) ◽  
pp. 144-150 ◽  
Author(s):  
M. Příkopa ◽  
R. Richter ◽  
J. Zimolka ◽  
R. Cerkal
Keyword(s):  
Nutritional Status ◽  
Sugar Beet ◽  
Protein Content ◽  
Crude Protein ◽  
Dry Matter ◽  
Nutrient Concentration ◽  
Spring Barley ◽  
Field Trials ◽  
Crude Protein Content ◽  
Matter Production

In the years 2001&ndash;2003 in field trials we studied the effects of the conditions of year, fore-crops (winter wheat, sugarbeet, grain maize) and optimalization of the nutritional status on the yield and crude protein content in the grain of spring barley. From the analysis of the plants we can see that dry matter production and nutrient concentration in the plants were influenced by the conditions of the year and the fore-crop. After sugar beet, the growth of the dry matter was intensive and the concentrations of nutrients per one plant were higher as early as in the initial stages of vegetation. The yields in the years 2001 and 2002 corresponded with these results while the highest yields were seen after the sugar beet. Due to the extreme lack of precipitation, the best fore-crop in 2003 was maize. While the dose of 50 kg N/ha increased the yields after maize, after wheat it reduced the yields and increased the crude protein content in the grain.

Early productivity and crude protein content of establishing forage swards composed of combinations of native grass and legume species in mixed-grassland ecoregions

2013 ◽  
Vol 93 (3) ◽  
pp. 445-454 ◽  
Author(s):  
Jenalee M. Mischkolz ◽  
Michael P. Schellenberg ◽  
Eric G. Lamb
Keyword(s):  
Protein Content ◽  
Crude Protein ◽  
Plant Density ◽  
Warm Season ◽  
Forage Yield ◽  
Schizachyrium Scoparium ◽  
Legume Species ◽  
Crude Protein Content ◽  
Native Grass ◽  
Western Wheatgrass

Mischkolz, J. M., Schellenberg, M. P. and Lamb, E. G. 2013. Early productivity and crude protein content of establishing forage swards composed of combinations of native grass and legume species in mixed-grassland ecoregions. Can. J. Plant Sci. 93: 445–454. We evaluated the early establishment productivity of forage swards of native, perennial, cool and warm season grasses, and legumes as they have the potential to provide non-invasive, productive, and drought resistant rangelands. Seven species with agronomic potential and a broad native geographic distribution were selected for testing including: nodding brome [Bromus anomalus (Coult.)], blue bunch wheatgrass [Pseudoregneria spicata (Pursh)], western wheatgrass [Pascopyrum smithii (Rydb.)], side oats grama [Bouteloua curtipendula (Michx.)], little blue stem [Schizachyrium scoparium (Michx.)], purple prairie clover [Dalea purpurea (Vent.)], and white prairie clover [Dalea candida (Willd.)]. Forage swards, including all seven monocultures, 21 two-species mixtures and a mixture with all species, were planted in two sites, Saskatoon and Swift Current, Saskatchewan. Western wheatgrass (WWG) had the highest overall plant density and the strongest effect on the forage yield of the forage swards; however, productivity and crude protein content were not reduced when other species were also included in the forage sward. Dalea spp. did not establish as well as the other species, but had the highest crude protein concentrations. This work provides insight into forage sward development at the establishment stage; additional work is required to determine long-term species impacts for well established forage swards.

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