scholarly journals Evaluation of durum wheat varieties for yield and yield related traits in highland areas of southern Ethiopia

Author(s):  
S Shibeshi ◽  
D Kassa

Durum wheat productivity in Ethiopia is hindered by different factors mainly lack of improved adapted varieties for specific locations. This experiment was done to identify the most performing durum wheat varieties in the tested environment. The average productivity of the tested genotypes were evaluated at two locations (Alicho and Analimo) using randomized complete block design with four replication for two consecutive years (2016 and 2017). The experimental material consists of seven improved durum wheat genotypes. The Combined analysis of variance showed significant (P<0.05) difference among tested genotypes on collected parameter indicating the presence of adequate variability. The highest average grain yield recorded was 4446 kg ha-1 from Hitosa variety while the lowest obtained was 3634 kg ha-1 from Denbi variety. Grain yield had strong positive correlations (P<0.01) with plant height, number of seed spike-1 and biomass. Int. J. Agril. Res. Innov. Tech. 11(1): 26-28, June 2021

2019 ◽  
Vol 8 (1) ◽  
pp. 9-14
Author(s):  
Zeynu Tahir ◽  
Asfaw Azanaw

Study was initiated with the objectives to identify high yielder malt barley varieties. The trial has been conducted during 2014 main season and laid out on randomized complete block design with three replications. Analysis of variance was computed using SAS, 2002. At Dabat, result showed that highly significant difference among the varieties (p < 0.05) for all agronomic traits. At Debark and Wegera the analysis of variance indicated that highly significant to a significant difference among varieties  at p < 0.05 for days to heading, days to maturity, plant height, spike length, thousand seed weight and grain yield, and seed per spike. The combined analysis of variance showed that highly significant difference among varieties for days to heading, days to maturity, plant height, spike length, and grain yield. The location also contributed the significant effect for all yield components except biomass and grain yield. The interaction of location by genotype showed the highly significant difference on days to maturity and plant height. The average heading days ranged from 70-81 and the average maturity days were ranged from 127-136. Among the tested varieties, IBON-174/03 and SABINI exhibited highest grain yield. The overall combined analysis indicated that IBON-174/03 and SABINI were high yielder and well adapted at the tested sites. Therefore those varieties are recommended for production in the testes sites, and similar agro-ecologies.     


2010 ◽  
Vol 28 (1) ◽  
pp. 77-85 ◽  
Author(s):  
P.S.L. Silva ◽  
K.M.B. Silva ◽  
P.I.B. Silva ◽  
V.R. Oliveira ◽  
J.L.B. Ferreira

The reduction in herbicide use is one of the greatest interests for modern agriculture and several alternatives are being investigated with this objective, including the adoption of cultivars that suppress weeds. The objective of this study was to verify if maize cultivars develop differently, in competition with weeds, to produce green ears and grain. Randomized complete block design was used, with split-plots and five replications. Cultivars DKB 390, DKB 466, DKB 350, AG 7000, AG 7575 and Master, were evaluated in the plots, without weeding and two weedings (at 22 and 41 days after sowing) in sub plots. Twenty-one species were identified in the experimental area, the most frequent being Gramineae (Poaceae), Euphorbiaceae, Leguminosae (Fabaceae) and Convolvulaceae species. There was no difference in the dry biomass above-ground part of the weeds in the plots of the evaluated cultivars. The cultivars behaved similarly in treatments with or without hoeing, except for plant height and ear height evaluations. Without hoeing, plant height increased in cultivar DKB 390, while plant height and ear height decreased in cultivar AG 7575. In the other cultivars, these traits did not change under weed control. The presence of weeds decreased the values of all traits employed to assess green corn yield, with the exception of the total number of green ears and grain yield.


Author(s):  
Gheith El-Sayed ◽  
◽  
Ola El-Badry ◽  

To evaluate the effect of nitrogen, zinc and iron as soil application on yield and yield component of wheat, the present study was conducted at Agricultural and Experimental Research Station at Giza, Faculty of Agriculture Cairo University, Egypt during 2015/2016 and 2016/2017 seasons. The experimental design was split-plot in randomized complete block design with three replications. Results showed that positive significant effect on plant height, number of spike/m2, spike length; number of grain per spike, grain yield per unit area in both seasons and grain protein content in one season were achieved by application of N and the micronutrients. Whoever, the highest significant in the above mentioned characters was obtained either by application the highest N levels (100kg N /fed.) or in addition to mixture of Zn and Fe. The interaction between the studied factors had significant effect on plant height and grain yield in both seasons as well as on grain protein content in the second season, where the highest values of these parameters were recorded by application of 100kg N/fed., Zn and Fe in mixture.


2016 ◽  
Vol 8 (2) ◽  
pp. 53 ◽  
Author(s):  
Nisar Ahmed ◽  
Muhammad Aslam Chowdhry ◽  
Ihsan Khaliq ◽  
Masahiko Maekawa

The magnitude of genetic inheritance and expected genetic advance are important for the prediction of response to selection in diverse environments and provide the basis for planning and evaluating breeding programs. This work investigated the inheritance of traits related to drought in wheat under natural drought conditions. Cross combinations were made to produce F1 and F2 hybrid populations, which were evaluated in a randomized completed block design with three replications at University of Agriculture, Faisalabad, Pakistan. Six wheat varieties/lines and six derived F2 hybrids were studied to ascertain heritability and genetic advance for plant height, days taken to maturity, number of tillers per plant, spike length, number of grains per spike, 1000-grain weight, and grain yield per plant. Data were collected and subjected to statistical genetic analyses. Heritability estimates and expected genetic advance for plant height, days taken to maturity, number of tillers per plant, 1000-grain weight and grain yield per plant were high for the entire cross combinations while the estimates for spike length and number of grains per spike were relatively low. Our results suggest that improvement for these characters should be faster because of higher heritabilities and greater phenotypic variation. Prospects of genetic improvement for all the characters studied are evident. The most promising cross combinations were WL60 × LU26S and WL61 × LU26S. These traits, therefore, deserve better attention in future breeding programs for evolving better wheat for stress environments. <br /><br />


2016 ◽  
Vol 8 (2) ◽  
pp. 53 ◽  
Author(s):  
Nisar Ahmed ◽  
Muhammad Aslam Chowdhry ◽  
Ihsan Khaliq ◽  
Masahiko Maekawa

The magnitude of genetic inheritance and expected genetic advance are important for the prediction of response to selection in diverse environments and provide the basis for planning and evaluating breeding programs. This work investigated the inheritance of traits related to drought in wheat under natural drought conditions. Cross combinations were made to produce F1 and F2 hybrid populations, which were evaluated in a randomized completed block design with three replications at University of Agriculture, Faisalabad, Pakistan. Six wheat varieties/lines and six derived F2 hybrids were studied to ascertain heritability and genetic advance for plant height, days taken to maturity, number of tillers per plant, spike length, number of grains per spike, 1000-grain weight, and grain yield per plant. Data were collected and subjected to statistical genetic analyses. Heritability estimates and expected genetic advance for plant height, days taken to maturity, number of tillers per plant, 1000-grain weight and grain yield per plant were high for the entire cross combinations while the estimates for spike length and number of grains per spike were relatively low. Our results suggest that improvement for these characters should be faster because of higher heritabilities and greater phenotypic variation. Prospects of genetic improvement for all the characters studied are evident. The most promising cross combinations were WL60 × LU26S and WL61 × LU26S. These traits, therefore, deserve better attention in future breeding programs for evolving better wheat for stress environments. <br /><br />


Author(s):  
Nimet Kara ◽  
Gökhan Gürbüzer

The study was conducted with aim to investigate growing possibilities without irrigating by taking advantage of spring rains at different sowing times as spring in Isparta conditions. The research was set up as field study during the 2009 and 2010 years according to Randomized Complete Block Design with three replications included six sowing dates 1st March, 10st March, 20th March, 30st March, 9th April and 18st April (control) by using Aktaş buckwheat cultivar. 18st April sowing time was irrigated as control, and the other sowing times was not watered and cultivated depending on natural rains. Buckwheat seeds emergence at 1st and 10st March sowing times, but all the plants after emergence died due to frost damage. Effect of sowing dates on plant height, biological yield and grain yield were statistically significant, and the longest plant height 65.9 cm and 60.0 cm, the highest biological yield 427.3 kg da-1 and 403.7 kg da-1 and grain yield 145.7 kg da-1 and 132.8 kg da-1, respectively, were determined in watered treatment in 18st April in both years (2015 and 2016). Effect of sowing dates on 1000 grain weight, hectoliter weight and protein content were statistically non-significant. It was concluded that buckwheat should be cultivation by watered for Isparta ecological conditions.


Author(s):  
Arzu Mutlu

This research was conducted with durum wheat variety (Alatay) at farmer conditions in Bozova district of Şanlıurfa province in 2018-19 and 2019-20 growing season according to a randomized complete block design with three replications. This study was conducted to determine the effect of dividing the top fertilizer in different development periods of wheat on grain yield and some yield factors (plant height, spike length, number of grains per spike, grain weight per spike) in order to struggle the drought experienced due to global warming in the world and in our country. According to the research results, it was determined that grain yield, plant height, spike length, number of grains per spike, weight of grains per spike ranged from 347.50-648.33 kg/da, 78.16-98.33 cm, 6.28-6.91 cm, 32.00 number/spike and 64.16 number/spike 2.47 gr/spike and 2.77 gr/spike respectively. The aim of the experiment is to determine how the top-dressing is divided and how the plant benefits from the moisture and nitrogen fertilizer in the soil and how it affects the grain yield and yield components of the plant.


2016 ◽  
Vol 40 (4) ◽  
pp. 581-590
Author(s):  
KS Rahman ◽  
SK Paul ◽  
MAR Sarkar

An experiment was conducted at the research field of Department of Agronomy, Bangladesh Agricultural University, Mymensingh during June to December 2012 to investigate the effect of age of tiller seedlings, number of tiller seedlings hill-1 and application of urea super granules (USG) on the yield and yield contributing characters of transplant Aman rice (cv. BRRI dhan52). The experiment consisted of two ages of tiller seedlings viz. 25 and 35-days old, three levels of tiller seedlings hill-1 viz. 1, 3 and 5 seedlings hill-1 and three levels of USG viz. 0, 1.8 (55 kg N ha-1) and 2.7g USG (80 kg N ha-1) four hill-1 in every alternate row. The experiment was laid out in a Randomized Complete Block Design (Factorial) with three replications. The highest plant height, number of effective tillers hill-1, number of total tillers hill-1, number of total spikelets panicle-1, number of grains panicle-1, grain yield and harvest index were found in 1.8 g USG applied @ one granule 4-hill-1. The highest number of sterile spikelets panicle-1 was found in control treatment and the lowest in 1.8 g USG. The highest number of effective tillers hill-1, number of total spikelets panicle-1 and grain yield ha-1 was found when 5 tiller seedlings were transplanted hill-1 combined with 1.8 g USG. Application of urea super granules 1.8 g (55 kg N ha-1) at 10 days after transplanting @ one granule 4-hill-1 in every alternate row with 25 day old tiller seedlings using 5 tiller seedlings hill-1 was found beneficial for grain yield of transplant Aman rice. Tiller separation could be an alternative source of seedling during seedling scarcity.Bangladesh J. Agril. Res. 40(4): 581-590, December 2015


2021 ◽  
Vol 1 (1) ◽  
pp. 13-23
Author(s):  
Andrayani Endang Tatik ◽  
Wayan Wangiyana

Many have reported that application of Silicon (Si) can alleviate environmental stress and increase grain yield of maize plants under stresses. This study aimed to examine the effects of adding organic or silicate fertilizer on several varieties of maize in rainfed area during a dry season, by conducting field experiment designed with Randomized Complete Block Design testing two treatment factors, i.e. maize varieties (V1= Bisi-2, V2= Srikandi, V3= Pioneer-27) and fertilizer combinations (F1= NPK only, F2= NPK+organic, F3= NPK+silicate). Results indicated that there were significant effects of fertilizer combinations and varieties on growth and yield of several maize varieties, in which the mean values were highest in maize plants fertilized with NPK+silicate fertilizers, except harvest index. Among the varieties, Pioneer-27 (hybrid) yielded the highest followed by Srikandi (open-pollinated) and Bisi-2 (hybrid) yielded the lowest grain weight per plant. However, there were interaction effects of the treatment factors, meaning that there were different responses between varieties of maize to application of organic or silicate fertilizer in addition to NPK fertilizer in terms of plant height, AGR (average growth rate) of plant height and dry grain yield per plant. Grain yield per plant of Pioneer-27 could be increased with application of organic (150.79 g/plant) or silicate (189.43 g/plant) compared with NPK only (133.99 g/plant), while that of Srikandi and Bisi-2 could only be increased by addition of silicate (113.83 g/plant in Srikandi and 103 g/plant in Bisi-2) compared with NPK only (93.77 g/plant in Srikandi and 82.59 g/plant in Bisi-2).


2016 ◽  
Vol 20 (1) ◽  
pp. 33-43
Author(s):  
AKMS Islam ◽  
MA Rahman ◽  
ABMZ Rahman ◽  
M Rahman ◽  
YJ Kim

Tegra practice (healthy seedling, mechanical transplanting, herbicide application and advisory services), as a new concept in commercial rice cultivation, needs to be evaluated with farmer’s practices in our country. This study was conducted in the farmers’ field during Aman 2013 and Boro 2013-14 seasons in Bogra district. In each season, six farmers within one kilometer radius were selected to conduct this study. Randomized complete block design (RCBD) with two treatments namely farmer’s practices (FP) and Tegra practices (TP) were used in the experiment. Self-propelled four rows walking-type rice transplanter was used to transplant seedling in TP. Seedlings were raised in plastic tray to use in mechanical transplanter. The mat seedlings were ready to transplant when attained 3-4 leaves and 10-12 cm height. Mechanical transplanting found faster than manual transplanting. Missing/floating hill observed insignificant in mechanically transplanted field. Fuel consumption of mechanical transplanter obtained 4.5 L/ha. Tender aged seedling was used in TP and seedling age was higher in FP than TP. Plant height followed the similar trend in both the practices. Tillering ability obtained the highest in TP than FP. TP produced significantly higher (14-23%) grain yield in both seasons. The total cost of production, gross return, gross margin and BCR obtained the highest in TP. BCR showed 5-13% higher in TP than FP in both the seasons due to higher grain and straw yield. The economic analysis clearly revealed the profitability of TP over FP in both the seasons.Bangladesh Rice j. 2016, 20(1): 33-43


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