scholarly journals AMMI model to analyse GxE for dual purpose barley in multi-environment trials

2016 ◽  
Vol 35 (1) ◽  
Author(s):  
R. P.S. Verma ◽  
A. S. Kharab ◽  
J. Singh ◽  
Vishnu Kumar ◽  
I. Sharma ◽  
...  
Keyword(s):  
Grain Yield ◽  
Environmental Effects ◽  
Significant Interaction ◽  
Major Part ◽  
Environmental Changes ◽  
Interaction Effects ◽  
Total Variance ◽  
Major Portion ◽  
Dual Purpose ◽  
Ammi Model

The highly significant effects of environments, genotypes and interactions were observed for forage and grain yield. The environmental effects explained the major portion of the total variance as of 82.3% and 58.8% respectively. Indicated that the environments were diverse and a major part of variation in yield resulted from environmental changes. The highly significant interaction effects partitioned into IPCA1, IPCA2 and IPCA3, IPCA4; which explained 30.4, 19.4, 14.8 & 13.2% for forage and 37.0, 17.2, 16.1 and 12.5% for harvested grain yield. AMMI stability value(ASV) identified promising genotypes G12(UPB 1035), G6(UPB 1034), G7(BH 971) and G13(RD 2857), G7 (BH 971) & G11(NDB 1570) for forage and grain respectively. AMMI distance (D) marked G3(RD 2035) G9(BH 970) & G13(RD 2857) for former while genotypes G15(RD 2856) G11(NDB 1570) & G7(BH 971) for grain yield. GSI score advocated G13(RD 2857), G11(NDB 1570) G3(RD 2035),G5(RD 2715 ) and G7(BH 971), G2(RD 2552) G14(AZAD) desirable genotypes for selection with forage and grain yield. Genotypes with IPCA-1 scores close to zero identified G4(UPB 1036), G7(BH 971), G16(NDB 1566) and G11(NDB 1570), G2(RD 2552) for forage and yield respectively would have wider adaptation to the tested environments as per AMMI graphical plots.

scholarly journals Yield performance of several promising lines of black rice as affected by application of mycorrhiza biofertilizer and additive intercropping with soybean under aerobic irrigation system on raised-beds

2021 ◽  
Vol 913 (1) ◽  
pp. 012005
Author(s):  
W Wangiyana ◽  
N Farida ◽  
I G P M Aryana
Keyword(s):  
Grain Yield ◽  
Significant Interaction ◽  
Irrigation System ◽  
Interaction Effects ◽  
Anthocyanin Content ◽  
Red Rice ◽  
Black Rice ◽  
Yield Performance ◽  
Rice Genotypes

Abstract Mycorrhiza-biofertilizer and legume intercropping were reported to increase yield and anthocyanin content of red-rice. This study was conducted to investigate the effects of mycorrhiza-biofertilizer and soybean-intercropping in additive series on yield of black-rice of different genotypes in irrigated aerobic-systems on raised-beds. The experiment, conducted on farmer’s ricefield from April to August 2021, was designed using SSP design, with black-rice genotypes (G3, G9, G4/15) as main plots; intercropping (T0=monocrop; T1=intercropping) as subplots, and mycorrhiza-biofertilizer (without and with mycorrhiza) as the sub-subplots. The results indicated that mycorrhiza-biofertilizer showed the most significant effects in increasing yield of back-rice followed by soybean-intercropping and genotypes. However, the significant interaction effects especially between mycorrhiza-biofertilizer and genotypes (M*G) indicated that G3 was not responsive but both G9 and G4/15 were highly responsive to application of mycorrhiza-biofertilizer with the highest grain yield (56.79 g/clump or 10.54 t/ha) was on G4/15 with biofertilizer and the lowest (27.48 g/clump or 5.5 t/ha) was on G9 without biofertilizer. Mycorrhiza-biofertilizer was also resulted in higher increase in grain yield under soybean-intercropping (31.9%) compared with under monocropped black-rice (15.5%).

scholarly journals Estimation of G x E interaction by AMMI model in some elite pigeonpea [Cajanus cajan (L.) Millspaugh] genotypes

2020 ◽  
Vol 80 (02) ◽  
Author(s):  
Amit Kumar Gaur ◽  
S. K. Verma ◽  
R. K. Panwar ◽  
R. K. Sharma
Keyword(s):  
Predictive Model ◽  
Seed Yield ◽  
Cajanus Cajan ◽  
Interaction Effects ◽  
Major Portion ◽  
G X E Interaction ◽  
Ammi Model ◽  
Main Effects

The G x E interaction was studied in pigeonpea genotypes using AMMI model. The results indicated that main effects as well as G x E interaction effects were significant for most of the traits. Major portion of the G x E was contributed by the genotypes. AMMI model having two principle components axis was found as the best predictive model in this study. AMMI biplots, ASV and YSV indicated PA 620 to be the most stable genotype for seed yield and number of secondary branches per plant during all the three years of testing.

EFFECT OF SOWING DATE ON GRAIN YIELD OF CRAB GRASS

2001 ◽  
Vol 49 (3) ◽  
pp. 293-297
Author(s):  
S. O. Bakare ◽  
M. G. M. Kolo ◽  
J. A. Oladiran
Keyword(s):  
Grain Yield ◽  
Interaction Effect ◽  
Significant Interaction ◽  
Sowing Date ◽  
Yield Data ◽  
Significant Interaction Effect ◽  
Sowing Dates

There was a significant interaction effect between the variety and the sowing date for the number of productive tillers, indicating that the response to sowing date varied with the variety. A significant reduction in the number of productive tillers became evident when sowing was delayed till 26 June in the straggling variety as compared to sowing dates in May. Lower numbers of productive tillers were also recorded when the sowing of the erect variety was further delayed till 10 July. The grain yield data showed that it is not advisable to sow the straggling variety later than 12 June, while sowing may continue till about 26 June for the erect variety in the study area.

Forage and grain yield of grazed or defoliated spring and winter cereals in a winter-dominant, low-rainfall environment

2015 ◽  
Vol 66 (4) ◽  
pp. 308 ◽  
Author(s):  
Alison. J. Frischke ◽  
James R. Hunt ◽  
Dannielle K. McMillan ◽  
Claire J. Browne
Keyword(s):  
Grain Yield ◽  
Dry Matter ◽  
Cereal Crops ◽  
Grain Production ◽  
Forage Production ◽  
Dual Purpose ◽  
Winter Cereals ◽  
Yield And Quality ◽  
Eastern Australia ◽  
Grain Yield And Quality

In the Mallee region of north-western Victoria, Australia, there is very little grazing of crops that are intended for grain production. The success of dual-purpose crops in other regions in south-eastern Australia with higher and more evenly distributed rainfall has driven interest in assessing the performance of dual-purpose cereals in the region. Five experiments were established in five consecutive years (2009–13) in the southern Mallee to measure the forage production and grain yield and quality response in wheat and barley to grazing by sheep or mechanical defoliation. The first three experiments focused on spring cultivars sown from late April to June, and the last two on winter cultivars planted from late February to early March. Cereal crops provided early and nutritious feed for livestock, with earlier sowing increasing the amount of dry matter available for winter grazing, and barley consistently produced more dry matter at the time of grazing or defoliation than wheat. However, the grain-production response of cereals to grazing or defoliation was variable and unpredictable. Effects on yield varied from –0.7 to +0.6 t/ha, with most site × year × cultivar combinations neutral (23) or negative (14), and few positive (2). Changes in grain protein were generally consistent with yield dilution effects. Defoliation increased the percentage of screenings (grains passing a 2-mm sieve) in three of five experiments. Given the risk of reduced grain yield and quality found in this study, and the importance of grain income in determining farm profitability in the region, it is unlikely that dual-purpose use of current cereal cultivars will become widespread under existing grazing management guidelines for dual-purpose crops (i.e. that cereal crops can be safely grazed once anchored, until Zadoks growth stage Z30, without grain yield penalty). It was demonstrated that early-sown winter wheat cultivars could produce more dry matter for grazing (0.4–0.5 t/ha) than later sown spring wheat and barley cultivars popular in the region (0.03–0.21 t/ha), and development of regionally adapted winter cultivars may facilitate adoption of dual-purpose cereals on mixed farms.

Stability Analysis of Agronomic Traits for Maize (Zea Mays L.) Genotypes Based on Ammi Model

2021 ◽  
Vol 50 (2) ◽  
pp. 343-350
Author(s):  
Meijin Ye ◽  
Zhaoyang Chen ◽  
Bingbing Liu ◽  
Haiwang Yue
Keyword(s):  
Grain Yield ◽  
Agronomic Traits ◽  
Interaction Model ◽  
Genotype By Environment Interaction ◽  
Kernel Weight ◽  
Environment Interaction ◽  
Maize Hybrids ◽  
Genotype By Environment ◽  
Ammi Model ◽  
The Ideal

Stability and adaptability of promising maize hybrids in terms of three agronomic traits (grain yield, ear weight and 100-kernel weight) in multi-environments trials were evaluated. The analysis of AMMI model indicated that the all three agronomic traits showed highly significant differences (p < 0.01) on genotype, environment and genotype by environment interaction. Results showed that genotypes Hengyu321 (G9), Yufeng303 (G10) and Huanong138 (G3) were of higher stability on grain yield, ear weight and 100-kernel weight, respectively. Genotypes Hengyu1587 (G8) and Hengyu321 (G9) showed good performance in terms of grain yield, whereas Longping208 (G2) and Weike966 (G12) showed broad adaptability for ear weight. It was also found that the genotypes with better adaptability in terms of 100-kernel weight were Zhengdan958 (G5) and Weike966 (G12). The genotype and environment interaction model based on AMMI analysis indicated that Hengyu1587 and Hengyu321 were the ideal genotypes, due to extensive adaptability and high grain yield under both testing sites. Bangladesh J. Bot. 50(2): 343-350, 2021 (June)

scholarly journals Response of dual-purpose wheat to nitrogen fertilization and seed inoculation with Azospirillum brasilense

2019 ◽  
Vol 43 ◽  
Author(s):  
Mauricio Pase Quatrin ◽  
Clair Jorge Olivo ◽  
Gabriela Descovi Simonetti ◽  
Vinicius Felipe Bratz ◽  
Guilherme Librelotto de Godoy ◽  
...  
Keyword(s):  
Grain Yield ◽  
Azospirillum Brasilense ◽  
Block Design ◽  
Forage Yield ◽  
Nitrogen Fertilizers ◽  
Leaf Biomass ◽  
Plant Growth Promoting Bacteria ◽  
Dual Purpose ◽  
Straw Yield ◽  
Nitrogen Rates

ABSTRACT The use of inoculants containing plant growth-promoting bacteria is an alternative to increase the efficiency of nitrogen fertilizers. Studies evaluating the effects of inoculation on forage yield, straw yield, and grain yield in dual-purpose wheat cultivars are scarce. This study aimed to evaluate the forage yield and grain yield in dual-purpose wheat inoculated with Azospirillum brasilense and fertilized with increasing nitrogen rates during two agricultural years (2016-2017) under cutting management. The trial was carried out in a completely randomized block design with four replicates, using a 2 x 4 factorial arrangement. The factors were the inoculation (control or A. brasilense) and nitrogen rates (0, 50, 100 and 150 kg ha-1 of N). Forage, grain and straw yield, and number of tillers were evaluated. Forage yield differed between treatments with inoculation and without inoculation, 3952 and 3350 kg DM ha-1, respectively. There was no effect of inoculation on grain yield. The forage and leaf biomass yield, the number of tillers and straw yield increased with inoculation.

WHEN A SMILE DOES NO GOOD: CREATIVITY REDUCTION AMONG AVOIDANCE- VERSUS APPROACH-ORIENTED INDIVIDUALS IN DYADIC INTERACTIONS

2016 ◽  
Vol 20 (04) ◽  
pp. 1640007 ◽  
Author(s):  
KEN FUJIWARA ◽  
KOSUKE TAKEMURA ◽  
SATOKO SUZUKI
Keyword(s):  
Significant Interaction ◽  
Interaction Effects ◽  
Social Approval ◽  
Dyadic Interactions ◽  
Same Sex ◽  
Popular Belief ◽  
Drawing Task

This study examined the influence of others’ smiles on individuals’ creativity. According to popular belief, individuals get motivated to be more creative when others smile at them. In contrast, we hypothesised that smiles would make avoidance-oriented (versus approach-oriented) individuals less creative, as they may lose the motivation to pursue further novelty once they gain social approval, as implied by a smile. Forty-two participants were paired with a same-sex stranger and randomly assigned to the role of either an “illustrator” or a “commentator.” The illustrators performed the Alien Drawing Task and the commentators gave feedbacks regarding the drawing, which were repeated six times and video-recorded. As expected, the results showed significant interaction effects between others’ smiles and avoidance orientation on creativity: participants high in avoidance orientation showed less creativity when others smiled at them. In addition, nodding had the same effect as a smile did, confirming that social approval decreases the creativity of avoidance-oriented individuals.

Optimising grain yield and grazing potential of crops across Australia’s high-rainfall zone: a simulation analysis. 2. Canola

2015 ◽  
Vol 66 (4) ◽  
pp. 349 ◽  
Author(s):  
Julianne M. Lilley ◽  
Lindsay W. Bell ◽  
John A. Kirkegaard
Keyword(s):  
Grain Yield ◽  
New South ◽  
New South Wales ◽  
Yield Potential ◽  
N Availability ◽  
Dual Purpose ◽  
High Rainfall ◽  
South Wales ◽  
Vernalisation Requirement ◽  
Crop Density

Recent expansion of cropping into Australia’s high-rainfall zone (HRZ) has involved dual-purpose crops suited to long growing seasons that produce both forage and grain. Early adoption of dual-purpose cropping involved cereals; however, dual-purpose canola (Brassica napus) can provide grazing and grain and a break crop for cereals and grass-based pastures. Grain yield and grazing potential of canola (up until bud-visible stage) were simulated, using APSIM, for four canola cultivars at 13 locations across Australia’s HRZ over 50 years. The influence of sowing date (2-weekly sowing dates from early March to late June), nitrogen (N) availability at sowing (50, 150 and 250 kg N/ha), and crop density (20, 40, 60, 80 plants/m2) on forage and grain production was explored in a factorial combination with the four canola cultivars. The cultivars represented winter, winter × spring intermediate, slow spring, and fast spring cultivars, which differed in response to vernalisation and photoperiod. Overall, there was significant potential for dual-purpose use of winter and winter × spring cultivars in all regions across Australia’s HRZ. Mean simulated potential yields exceeded 4.0 t/ha at most locations, with highest mean simulated grain yields (4.5–5.0 t/ha) in southern Victoria and lower yields (3.3–4.0 t/ha) in central and northern New South Wales. Winter cultivars sown early (March–mid-April) provided most forage (>2000 dry sheep equivalent (DSE) grazing days/ha) at most locations because of the extended vegetative stage linked to the high vernalisation requirement. At locations with Mediterranean climates, the low frequency (<30% of years) of early sowing opportunities before mid-April limited the utility of winter cultivars. Winter × spring cultivars (not yet commercially available), which have an intermediate phenology, had a longer, more reliable sowing window, high grazing potential (up to 1800 DSE-days/ha) and high grain-yield potential. Spring cultivars provided less, but had commercially useful grazing opportunities (300–700 DSE-days/ha) and similar yields to early-sown cultivars. Significant unrealised potential for dual-purpose canola crops of winter × spring and slow spring cultivars was suggested in the south-west of Western Australia, on the Northern Tablelands and Slopes of New South Wales and in southern Queensland. The simulations emphasised the importance of early sowing, adequate N supply and sowing density to maximise grazing potential from dual-purpose crops.

The Breeding of Dual Purpose Cattle

1944 ◽  
Vol 1944 (01) ◽  
pp. 15-27
Author(s):  
W. S. Mansfield
Keyword(s):  
Major Part ◽  
Dairy Herd ◽  
Farm Income ◽  
Dairy Farmers ◽  
Dual Purpose ◽  
Small Minority ◽  
Dairy Farmer ◽  
Dual Purpose Cattle ◽  
The Subject ◽  
Definition Of

Though this paper is on the subject of Dual Purpose Cattle it is in no sense a defence of them, not because I am not a devout believer in them myself, but because I am certain that before a learned body such as this they need no defence. Still less is it necessary for me to prove to you that such cattle really exist, though even this has been questioned. But though I do not think it necessary to defend them, I should like first of all to say something about their place in the general economy of our English farming. (I say English advisedly, for there have never been many dual purpose cattle in Scotland, perhaps because the conditions are not suitable.) It is a fact often overlooked that only a small proportion of our milk producing farmers are dairy farmers in the true sense of the term. A dairy farmer is surely one who draws the major part of his farm income, if not the whole of it, from his dairy herd. In other words, he is a specialist. If this definition of a dairy farmer is accepted then I submit that dairy farmers form a small minority of those farmers who keep milch cattle, and by all means let them keep pure dairy breeds.

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