Performance of fourteen Leucaena lines at five sites in Queensland

1988 ◽  
Vol 28 (1) ◽  
pp. 69 ◽  
Author(s):  
RA Bray ◽  
DG Cooksley ◽  
TJ Hall ◽  
D Ratcliff
Keyword(s):  
Dry Matter ◽  
Total Yield ◽  
F1 Hybrids ◽  
Growing Seasons ◽  
Cutting Interval

Ten lines of Leucaena leticoceyhala, 1 of L. diversifolia and 3 L. leucocephalax L. pulrerulenta F1 hybrids were grown at 5 contrasting sites in Queensland. Harvests were taken over 3 growing seasons, and dry matter yields estimated. The F1 hybrids were outstanding in most environments, outyielding cv. Cunningham by an average of 45%; the L. Ieucocephala lines CPI 58396 and 61227 and cv. K8 consistently outyielded cv. Cunningham by an average of 24%. When 2 contrasting cutting intervals were compared at Lansdown, there was no effect on dry matter yields, although the longer cutting interval produced more wood. The range of mimosine concentrations in the L. Ieucocephala lines was 4.1-5.6%. CPI 6 1227 had significantly lower mimosine content than cv. Cunningham. The genotype x site interaction for total yield was significant (P< 0.01). However, ranking of lines of L. leucocephala was fairly consistent across environments.

Yield and persistence of irrigated lucernes cut at different frequencies, at Tamworth, New South Wales.

1986 ◽  
Vol 26 (2) ◽  
pp. 165 ◽  
Author(s):  
GM Lodge
Keyword(s):  
Dry Matter ◽  
New South ◽  
Total Yield ◽  
Dry Matter Yield ◽  
South Wales ◽  
Cutting Frequency ◽  
Plant Persistence ◽  
Cutting Interval ◽  
The Mean ◽  
The Individual

Three irrigated lucerne cultivars, Pioneer Brand 545 (winter dormant), Condura 73 Brand (semiwinter dormant), and CUF 101 (highly winter active), were harvested at fixed cutting intervals of either 25, 28 ,35, 42 or 48 days from September to April in each of four years. This paper reports the effects of these cutting frequencies on the dry matter yield, leaf to stem ratio and persistence of these cultivars. The effect of cutting frequency on mean total yield (the sum of the mean yields for each harvest) was significant (P<0.05) in each year of the experiment, except year 3. Yields were highest in the 35-day cutting frequency in years 1 and 2. In the fourth year of the experiment the mean total yield of Pioneer Brand 545 and Condura 73 Brand was 29% higher (P<0.05) than CUF 101. By the fourth year substantial amounts of grass were present in the 25- and 28-day cutting interval plots. The contrasts between dormant and active cultivars for the dry matter yield of each of the individual harvests were not consistent in the first two years. In the third and fourth years the active initially outyielded the dormant cultivars at all cutting intervals, but yields of both were generally similar at the end of the season. Increasing the interval between successive harvests generally decreased the mean leaf to stem ratio. The ratio of leaf to stem for CUF 101 was significantly lower (P<0.05) than that for Pioneer Brand 545, with Condura 73 Brand tending to be intermediate. Within cutting intervals, mean declines in plant persistence were similar for cultivars from the different dormancy groups. Largest changes in plant frequency occurred in the fourth year when the mean frequency for the 25- and 28-day plots decreased from 69 to 12% compared with a mean decline from 74 to 65% for the 42- and 48-day cutting intervals. Productive stand life in this experiment was 3 years, even though disease was negligible. Under these conditions grass invasion was mainly related to harvest interval and much less to cultivar dormancy.

scholarly journals Diallel analyses and estimation of genetic parameters of hot pepper (Capsicum chinense Jacq.)

2003 ◽  
Vol 60 (1) ◽  
pp. 105-113 ◽  
Author(s):  
João Alencar de Sousa ◽  
Wilson Roberto Maluf
Keyword(s):  
Xanthomonas Campestris ◽  
Dry Matter ◽  
Block Design ◽  
Dominant Gene ◽  
Total Yield ◽  
Diallel Cross ◽  
F1 Hybrids ◽  
Hot Pepper ◽  
Capsicum Chinense ◽  
Number Of Seeds

The degree of heterosis in the genus Capsicum spp. is considered high; however, most of the studies refer to the species Capsicum annuum L. In spite of the potential use of F1 hybrids in pungent peppers of the species Capsicum chinense, few studies are available which assess the magnitude of heterosis in this species . This study was carried out to assess heterosis and its components in F1 hybrids from a diallel cross between hot pepper lines (Capsicum chinense) and to obtain data on the allelic interaction between the parents involved in the crosses. Trials were made in Rio Branco-Acre, Brazil, from March through October 1997. A randomized complete block design with fifteen treatments and three replications was used. The treatments were five C. chinense accessions (from the Vegetable Germplasm Bank of the Universidade Federal de Viçosa - BGH/UFV) and 10 F1 hybrids derived from single crosses between them (reciprocals excluded). Diallel analyses were performed for total yield, fruit length/diameter ratio, fruit dry matter per plant, Xanthomonas campestris pv. vesicatoria incidence, capsaicin yield per plant and number of seeds per fruit. Non-additive genetic effects were larger than additive effects for all the traits assessed. Epistasis was detected for fruit dry matter per plant, capsaicin yield per plant and number of seeds per fruit. In these cases, epistasis seemed to be largely responsible for heterosis expression. Dominant gene action, ranging from incomplete dominance to probable overdominance, was responsible for heterosis in those traits where no epistatic genetic action was detected.

Effect of defoliation frequency on growth and survival of four accessions of Psoralea eriantha

1975 ◽  
Vol 15 (75) ◽  
pp. 493 ◽  
Author(s):  
RC Gutteridge ◽  
PC Whiteman
Keyword(s):  
Dry Matter ◽  
Total Yield ◽  
The Other ◽  
Average Yield ◽  
Growth And Survival ◽  
Cutting Interval ◽  
Defoliation Frequency ◽  
The One ◽  
Cutting Regimes ◽  
Semi Arid

Four accessions of the semi-arid shrub legume Psoralea eriantha were evaluated under three six and nine week cutting regimes for 72 weeks in pots in the glasshouse. Total yield increased in all accessions with increasing intervals between cutting. Yield in the three week cutting interval was only 36 per cent of the yield in the nine week cutting interval. The one erect accession, though giving the highest average yield, also suffered the highest mortality under the frequent defoliation. The other accessions suffered little mortality. Defoliation frequency affected root and stubble weights and these were closely correlated with total dry matter yields. Frequent defoliation also markedly reduced the number of primary and secondary shoots. It is suggested that survival under grazing may be more important than a higher yielding ability.

INFLUENCE OF TECHNOLOGICAL METHODS ON THE QUALITY OF WHEAT FLOUR

2019 ◽  
Author(s):  
М.А. ХАШАГУЛЬГОВА ◽  
У.А. ХАШАГУЛЬГОВ ◽  
О.О. ГЕТОКОВ
Keyword(s):  
Wheat Flour ◽  
Mass Fraction ◽  
Dry Matter ◽  
Total Yield ◽  
First Grade ◽  
Second Grade ◽  
Group I ◽  
Flour Yield ◽  
Technological Methods

Изучено влияние технологических приемов на качество муки. Определяли качество зерна озимой мягкой пшеницы Краснодарская 57 по ГОСТ 93532016. При определенной технологической схеме 78м двухсортном выходе муки было получено 70 муки 1го сорта и 8 муки 2го сорта. Качество муки соответствует ГОСТ Р 521892003. Мука 1го и 2го сортов обладает пресным вкусом, запахом, свойственным пшеничной муке массовая доля влаги 14,7 (1й сорт) и 13,5 (2й сорт). Наличие минеральной примеси, зараженность вредителями не установлены. Содержание металломагнитной примеси 0,041 мг (1й сорт) и 0,048 мг (2й сорт), что соответствует стандарту. Массовая доля золы в пересчете на сухое вещество составила не более 0,69 для муки 1го сорта и 0,70 для муки 2го сорта, белизна у. е. прибора РЗБПЛ 52,4 (1й сорт) и 30,0 (2й сорт). Качество сырой клейковины для муки 1го и 2го сортов составляет 70,0 и 78,0 у. е. прибора ИДК1 (I группа) соответственно. Определены также крупность помола остаток на сите 2,0 1,9 и 2,2, число падения 200 и 182 с, массовая доля сырой клейковины 30,3 и 26,6, содержание протеина 13,2 и 12,5 для муки 1го и 2го сорта соответственно. Цвет белый для муки 1го сорта и белый с желтоватым оттенком для муки 2го сорта. По органолептическим и физикохимическим показателям пшеничные отруби соответствовали ГОСТ 716966. В результате гидротермической обработки зерна с применением холодного кондиционирования и отволаживанием в течение 4 ч выход сырой клейковины вследствие повышения водопоглотительной способности белков увеличился с 25 до 26,6. Одновременно наблюдалось ослабление клейковины, возрастание ее растяжимости. При отволаживании зерна в течение 6 и 8 ч происходило некоторое увеличение выхода сырой клейковины, : 27,9 и 30,3 соответственно. Качество клейковины составило 70 у. е. прибора ИДК1, что соответствует I группе качества. Выход муки при 4часовом отволаживании составил 64, при 6часовом увеличился до 66. Высокий показатель общего выхода муки 78 был установлен при 8часовом отволаживании. Холодное кондиционирование способствовало улучшению мукомольных и хлебопекарных свойств зерна, увеличению выхода сортовой муки при меньших затратах электроэнергии. The influence of technological methods on the quality of flour has been studied. The quality of winter wheat Krasnodarskaya 57 was determined according to GOST 93532016. At a certain technological scheme with a seventyeight percent twograde flour yield was obtained 70 flour 1st grade and 8 flour 2nd grade. The quality of flour corresponds to GOST R 521892003. Flour of the first and second grades has a fresh taste, the smell characteristic of wheat flour, the mass fraction of moisture 14,7 (1st grade) and 13,5 (2nd grade). The presence of mineral impurities, pest contamination has not been established. The content of metallomagnetic impurities was found to be 0,041 mg (1st grade) and 0,048 mg (2nd grade), which corresponds to the standard. Mass fraction of ash in terms of dry matter was no more than 0,69 for first grade flour and 0,70 for flour of the second grade, whiteness conditional units of the device RZBPL 52,4 (1st grade) and 30,0 (2nd grade). The quality of wet gluten for flour of 1st and 2nd grades is 70,0 and 78,0 units of the device IDK1 (I group) respectively. Were also defined the particle size of grinding the residue on the sieve 2,0 1,9 and 2,2, the falling number 200 and 182 seconds, the mass fraction of wet gluten 30,3 and 26,6, protein content 13,2 and 12,5 for flour 1st and 2nd grade, respectively. The color is white for the flour 1st grade and the white with a yellowish tinge for the flour of the 2nd grade. By organoleptic and physicochemical indicators, wheat bran complied with GOST 716966. As a result of hydrothermal grain treatment with the use of cold conditioning and softening for 4 hours, the yield of raw gluten due to an increase in the waterabsorbing ability of proteins increased from 25 to 26,6. At the same time, a weakening of the gluten was observed, an increase in its extensibility. When softening grain for 6 and 8 hours there is some increase in the yield of wet gluten, : of 27,9 and 30,3 respectively. The quality of gluten was 70 units of the device IDK1, which corresponds to the quality group I. The yield of flour with fourhour softening was 64, with sixhour increased to 66. High total yield of flour of 78 was set when the eighthour softening. Cold conditioning contributed to the improvement of the milling and baking properties of grain, increasing the yield of highgrade flour with less power consumption.

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 A COMPARISON OF PERENNIAL GRASSES UNDER SHEEP GRAZING ON THE CENTRAL PLATEAU

1983 ◽  
pp. 81-90
Author(s):  
N.S. Percival ◽  
F.R. Duder
Keyword(s):  
Tall Fescue ◽  
Dry Matter ◽  
Total Yield ◽  
Seasonal Distribution ◽  
Perennial Grasses ◽  
Sheep Grazing ◽  
Small Reduction ◽  
Central Plateau ◽  
Canary Grass ◽  
Autumn And Winter

Details are given on the production and survival over four years of five perennial grasses under rotational sheep-grazing on a pumice soil. The comparison involved three perennial ryegrasses ('Grasslands Nui and Ruanui', and Yates Ellett), and mixtures of Ellett with 'Grasslands Roa' tall fescue and Ellett with 'Grasslands Maru' phalaris. All pastures were sown with white and red clovers. Annual dry matter yields from Nui and Ellett pastures were similar, at about 6,500 kg/ha. Ruanui pastures were on average 600 kg/ha lower. The pastures containing tall fescue and phalaris were similar to Ellett. The major seasonal yield effects were in autumn and winter, when Ruanui pastures were substantially poorer than those with Nui and Ellett. Ryegrass yield of Ellett pasture was greater than Nui, and Nui was greater than Ruanui at all seasons. Ellett ryagrass was a higher proportion of the total yield at all times, and had higher tiller populations than Nui and Ruanui. Neither tall fescue or phalaris were, able to compete with Ellett ryegrass. It is suggested that neither of these be sown with ryegrass. Clover yields were higher in Ruanui than Ellett pastures, with Nui intermediate. The use of Nui, Ellett and Ruanui ryegrasses is related to the problems of seasonal distribution and total annual yields of pastures on the Central Plateau. It is suggested using Nui or Ellett as the base for perennial pastures will give substantial increases in production. Ellett ryegrass had higher survival than Nui which was considered an advantage, though this was achieved at the expense of a small reduction in clover vields. Keywords: Perennial ryegrass, Ellett, Nui, Ruanui, Roa tall fescue, Maru phalaris, canary grass, sheep grazing, central North Island, Central Plateau, grass grub, Argentine stem weevil, Lolium endophyte.

Studies with lucerne (Medicago sativa)—row distances and “smother” crops

1940 ◽  
Vol 30 (2) ◽  
pp. 182-188 ◽  
Author(s):  
F. H. Garner ◽  
H. G. Sanders
Keyword(s):  
Medicago Sativa ◽  
White Clover ◽  
Dry Matter ◽  
Total Yield ◽  
Seed Rate ◽  
Weed Infestation ◽  
Harvest Year ◽  
The University

As a result of one detailed experiment and four demonstrations carried out on the University Farm at Cambridge the following conclusions can be drawn:1. Lucerne drilled at a constant seed rate per acre, in narrow rows (3½ and 7 in.), gave a greater yield per acre than when drilled in rows 10½ and 14 in. in width. Over a four-year period the yield of dry matter per acre from narrow rows was half a ton more than from wide rows. No evidence was obtained that weed infestation is reduced by narrow drilling.2. The broadcasting of 5 lb. of trefoil per acre at the time the lucerne was drilled had no effect on the total yield or on weed infestation.3. Wild white clover broadcast at the rate of 2 lb. per acre at the time of drilling the lucerne slightly reduced the yield of lucerne in the first harvest year, but subsequently it served to secure some control of weeds, and thereby favoured the persistence of the lucerne. Differences in yield associated with sowing wild white clover were, however, slight.4. Commercial cocksfoot broadcast at the rate of 10 lb. per acre at the time of drilling the lucerne led to very considerable increases in total yield (nearly 3 tons per acre of dry matter over a four-year period). The increments were obtained principally during the spring growth, and some loss of lucerne plants was suffered, so that in a very dry summer the total aftermath yield was slightly reduced. Since cocksfoot almost completely controlled weeds and its mixture with lucerne was very suitable for hay or for silage, it is regarded as a plant that may be included in a lucerne ley with advantage.

AN EVALUATION OF VARIETAL CHARACTERISTICS OF ORCHARDGRASS (DACTYLIS GLOMERATA L.) SUBJECTED TO A SILAGE-PASTURE TYPE OF UTILIZATION

1961 ◽  
Vol 41 (3) ◽  
pp. 653-663
Author(s):  
W. E. P. Davis
Keyword(s):  
Dry Matter ◽  
Growth Habit ◽  
Total Yield ◽  
Early Maturity ◽  
Main Determinant ◽  
Fall Dormancy ◽  
General Adaptation ◽  
Maturity Class ◽  
Regional Adaptation ◽  
Dactylis Glomerata L

A study was conducted over 3 harvest years to evaluate the importance of maturity classification, tillering, and fall dormancy in relation to yield of dry matter, per cent protein and yield of protein, and regional adaptation of 40 orchardgrass varieties subjected to a silage-pasture type of utilization. Using head emergence (silage stage) as the criterion, five maturity classes were established: very early, early, medium, late, very late. Early maturity was positively associated with total yield, but there was no relation between maturity and per cent protein, tillering, or fall dormancy. Total yield of dry matter was the main determinant of protein yield. Tillering was not associated with yield of dry matter or per cent protein but was associated with fall greenness. Fall dormancy was positively associated with prostrate fall growth habit. Individual varieties displaying desirable agronomic characteristics were found within every maturity class. However, the leading varieties with respect to total yield of dry matter and protein per acre were from the medium maturity class. The medium maturity class displayed the best seasonal distribution of dry matter and general adaptation.

A comparison of silages made from red clover/grass, white clover/grass and high nitrogen grass swards for beef production

1985 ◽  
Vol 40 (2) ◽  
pp. 267-277 ◽  
Author(s):  
T. A. Stewart ◽  
I. I. McCullough
Keyword(s):  
Perennial Ryegrass ◽  
White Clover ◽  
Dry Matter ◽  
Total Yield ◽  
Live Weight ◽  
Red Clover ◽  
Dry Matter Yield ◽  
Grass Silage ◽  
Matter Production ◽  
Grass Sward

ABSTRACTSilage cut twice annually (June and August) from a tetraploid red clover/grass sward and three times annually (May, July and September) from a low nitrogen (N) and high N perennial ryegrass/white clover sward was fed in proportion to dry-matter yield from each cut, over a 10-week period, each winter for 3 years to castrated male cattle of initial live weight 401 kg in year 1 and 425 kg in years 2 and 3. The silages were supplemented with 0, 1, 2 and 3 kg concentrate per head daily.Total dry-matter yield from the red clover/grass sward was similar to that from the perennial ryegrass/white clover sward (high N grass) receiving 360 kg N per ha but the digestibility, particularly of first cut material was much lower. Dry-matter production of the low N grass/white clover sward was 0·73 of high N grass sward and produced silages of similar digestibility and fermentation.Dry-matter intakes by the cattle were higher on the legume-based silages in years when clover made a worthwhile contribution to total yield, but this did not significantly improve utilization or animal performance compared with high N grass silage. Mean daily carcass gain per head on red clover/grass silage was 0·41 kg which was significantly less than the 0·61 kg on white clover/grass silage and 0·59 on high N grass (P < 0·001). Carcass output from red clover/grass silage was 618 kg/ha and 629 kg/ha from white clover/grass, both of which were significantly less than the 863 kg/ha from the high N grass silage (P < 0·001). Dressing proportion was also significantly poorer in animals fed red clover/grass silage compared with the other silage types.

scholarly journals COMBINING ABILITY OF FORAGE WATERMELON ( Citrullus lanatus var. citroides ) GERMPLASM

2017 ◽  
Vol 30 (3) ◽  
pp. 768-775 ◽  
Author(s):  
ROBERTA MACHADO SANTOS ◽  
NATONIEL FRANKLIN DE MELO ◽  
MARIA ALDETE JUSTINIANO DA FONSECA ◽  
MÁRIO ADRIANO ÁVILA QUEIROZ
Keyword(s):  
Protein Content ◽  
Dry Matter ◽  
Citrullus Lanatus ◽  
Fruit Yield ◽  
F1 Hybrids ◽  
In Vitro Digestibility ◽  
Ethereal Extract ◽  
Selection For ◽  
Number Of Seeds

ABSTRACT The aim of this study was to identify parents and promising hybrid combinations for the improvement of forage watermelon. Five parents were evaluated: BGCIA 996 (1), BGCIA 997 (2), BGCIA 998 (3), BGCIA 228 (4), Jojoba (5) and ten F1 hybrids, which were obtained from balanced diallel crosses. The experimental design was in a complete randomized block, with three replications. The morphoagronomic and bromatological traits were evaluated. The highlights were the progenitors BGCIA 997, BGCIA 998, BGCIA 228 and Jojoba for protein content, fruit yield, in vitro digestibility of dry matter and number of seeds, respectively. The hybrid 1x4 stood out for fruit length, seed number, and ethereal extract. The hybrid 2x3 stood out for rind and pulp thickness while the hybrids 3x4, 3x5 and 4x5 had exceptional digestibility, protein content and fruit yield, respectively. The analysis of the standard deviation of the SCA estimates of both SD (Sij- Sik) and SD (Sij- Skl) indicated that no hybrids were found that had SCA estimates twice that of SD (Sij- Sik) or SD (Sij- Skl), except for the hybrid 1x4 for the number of seeds per fruit. These results suggest that the parents were more promising than the hybrids. Similarly, the GCA estimates favor the intrapopulation method, which will promote greater efficiency in selection for genetic gains.

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