scholarly journals Influence of Sowing Dates and Varieties on the Biological Yield of Wheat Crop (Triticum aestivum L.)

2021 ◽  
pp. 9-15
Author(s):  
Sediq Omar Roshan ◽  
Rahmatullah Hashimi ◽  
Ghulam Habib Noori
Keyword(s):  
Triticum Aestivum ◽  
Triticum Aestivum L ◽  
The Other ◽  
Wheat Crop ◽  
Lower Yield ◽  
Wheat Varieties ◽  
Sowing Dates ◽  
Biological Yield ◽  
Selection Of ◽  
Late Sowing

A field experiment was carried out in Dar-ul-Aman Research Farm, Kabul Afghanistan in 2017, to study the influence of sowing dates and varieties on the biological yield of wheat crop (Triticum aestivum L.). The experiment was laid out in RCBD with a split-plot arrangement having three replications. Wheat was sown in different sowing dates i.e., October 24th, November 2nd, 12th, and 22nd in main plots, whereas five wheat varieties (Chounth # 1-2010, Moqawim-09, Shisham Bagh-08, Dar-ul-Aman-07 and Solh 2002) were in sub plots. November 2nd planted wheat had a highest biological yield of (6642.1 kg ha-1) followed by October 24th and November 12th which gave (6576.5) and (5711.0 kg ha-1) respectively. The lowest biological yield of (2975.1 kg ha-1) was given by the wheat varieties sown on November 22nd. Among the all-wheat varieties, Solh 2002, had significantly higher biological yield of (6263.7 kg ha-1) followed by Shisham Bagh-08 with biological yield of (5571.8 kg ha-1). However, Moqawim-09 had lowest biological yield of (4976.8 kg ha-1) compare to other varieties. While, evaluating performance of different wheat varieties on different sowing dates, Solh 2002, resulted in maximum biological yield (7476.2 kg ha-1) on November 2nd followed by Dar-ul-Aman-07 (6933.3 kg ha-1) and Shisham Bagh-08 (6860.0 kg ha-1) on November 2nd and October 24th respectively. On the other hand, Dar-ul-Aman-07 had lowest biological yield among the varieties (2015.5 kg ha-1) on November 22nd, it shows that, Dar-ul-Aman-07 had highest biological yield on early planting but lower yield on late sowing dates. The study shows that delay in wheat planting or selection of other varieties rather than Solh 2002 and Dar-ul-Aman-07 reduces the biological yield of the crop.

scholarly journals Assessment of Genetic Diversity and Character Associations for Yield and Its Traits in Bread Wheat (Triticum aestivum L.)

2021 ◽  
Author(s):  
Anuj Kumar ◽  
Pooran Chand ◽  
Ravi Singh Thapa ◽  
Tejbir Singh
Keyword(s):  
Genetic Diversity ◽  
Triticum Aestivum ◽  
Grain Yield ◽  
Plant Height ◽  
Harvest Index ◽  
Triticum Aestivum L ◽  
Wheat Crop ◽  
Cluster Distance ◽  
Biological Yield ◽  
Late Sowing

Background: Wheat (Triticum aestivum L.) an important self-pollinated and hexaploid (2n = 6x = 42) cereal crop belongs to the grass family Gramineae (Poaceae). With the gradual increase in human population, there is a substantial increase in the demands for food requirements. Hence, increasing the wheat production is an important goal to overcome the demand of food. The only alternative is to increase productivity by better crop management techniques and introduction of high yielding varieties. The current study aimed to study the genetic diversity in wheat genotypes for further selection and utilization in breeding programmes and identification of transgressive segregants for genetic improvement in wheat crop. Methods: In the field investigation during 2017-2019, forty genotypes were evaluated at research farm of Department of Genetics and Plant Breeding, Kisan P.G. College, Simbhaoli, Hapur (U.P). The observations were recorded on five randomly selected competitive plants from each genotype in each replication and recorded data from each replication was subjected to statistical analysis. Result: Significant differences were observed for all the characters studied in both environments (early and late). Highest GCV and PCV were recorded for flag leaf area, number of tillers per plant and grain yield in both environments. Plant height, days to 50% heading and grain yield in early sowing and for plant height, gluten content and grain yield exhibited high heritability estimates in late sowing. Biological yield and harvest index showed positive and significant association with grain yield under both environments. Biological yield and harvest index have positive and direct effect on grain yield in both environments. Forty genotypes were grouped into seven clusters in early sowing and six clusters in late sowing. Maximum inter cluster distance was observed between clusters VI and IV in early sowing and between cluster III and II in Late sowing. Genotypes PBW-34 showed wide genetic diversity in both the environments (early and late sowing). Based on the divergence studies it is suggested that maximum heterosis and good recombinants could be obtained in crosses between the genotypes of clusters which showed highest inter cluster distance and these genotypes can be utilized in crop improvement programmes.

scholarly journals Spring wheat yield (Triticum aestivum L.) when applying selenium fertilizers in extreme growing conditions

2021 ◽  
Vol 843 (1) ◽  
pp. 012038
Author(s):  
I I Seregina ◽  
I G Makarskaya ◽  
A S Tsygutkin ◽  
I V Kirichkova
Keyword(s):  
Triticum Aestivum ◽  
Water Supply ◽  
Spring Wheat ◽  
Sodium Selenite ◽  
Wheat Yield ◽  
Triticum Aestivum L ◽  
Wheat Crop ◽  
Wheat Varieties ◽  
Negative Effect ◽  
Positive Effect

Abstract To study the effect of sodium Selenite application different methods on the yield of spring wheat varieties, depending on the conditions of water supply, a series of vegetation experiments in accordance with the methodology were carried out. The object of the study is spring wheat of the Zlata variety (Triticum aestivum L.). It was found that the effect of selenium on the yield of wheat of the Zlata variety depended on the method of its application and the conditions of water supply. With optimal water supply, the positive effect of selenium on the yield of spring wheat plants was revealed with both methods of applying sodium selenite. It was found that in conditions of drought, the positive effect of selenium was obtained with both methods of using sodium selenite. The greatest efficiency of selenium is obtained in foliar processing of plants. The increase in grain weight in this variant was 1.4 times. The increase in the share of the agronomic significant part of the wheat crop yield to 36% is shown, which indicates the decrease in the negative effect of drought on the formation of spring wheat yield when using foliar processing of plants.

scholarly journals INDUKSI MUTASI DAN SELEKSI IN VITRO TANAMAN GANDUM (Triticum aestivum L.)

2016 ◽  
Vol 3 (2) ◽  
pp. 48
Author(s):  
Laela Sari ◽  
Agus Purwito ◽  
Didy Soepandi ◽  
Ragapadmi Purnamaningsih ◽  
Enny Sudarmonowati
Keyword(s):  
Triticum Aestivum ◽  
In Vitro Selection ◽  
Triticum Aestivum L ◽  
Callus Growth ◽  
Wheat Crop ◽  
Soaking Time ◽  
Induced Mutation ◽  
Callus Production ◽  
Selection Of

INDUCTION MUTATION AND SELECTION OF IN VITRO PLANT OF WHEAT (Triticum aestivum L.)The goal of this research was to produce wheat crop which is tolerant to lowland condition.Six varieties were used, Dewata, Selayar, Alibey, Oasis, Rabe and HP1744. This research consisted of 4 stages: production of the best callus on MS medium containing 3 g/L 2.4-D, induced mutation of embryogenic callus using EMS, in vitro selection of callus at temperature of 27–35°C, and callus regeneration. The best result for callus production was 76% for Dewata and 70% for Selayar varieties. Higher concentration of EMS and longer soaking time decreased the percentage of callus growth. LC50 for Dewata was 0.3% EMS at 30 minutes and that for Selayar was 0.1% EMS at 60 minutes. The higher the temperature was, the lower was the adaptation tolerant of the plants, and callus growth was inhibited. At the highest temperature (35°C) the callus did not grow at all.Keywords: Induced mutation, Triticum aestivum, EMS, in vitro selection, callusABSTRAKTujuan penelitian ini adalah untuk merakit tanaman gandum yang toleran pada dataran rendah. Varietas yang digunakan ada 6 yaitu Dewata, Selayar, Alibey, Oasis, Rabe dan HP-1744. Penelitian terdiri atas empat tahap yaitu induksi pembentukan kalus terbaik menggunakan media MS + 3 g/L 2,4-D (dipilih dua varietas yang terbaik), induksi mutasi kalus embriogenik menggunakan EMS, seleksi kalus in vitro pada suhu 27–35°C, dan regenerasi. Hasil induksi kalus terbaik terdapat pada varietas Dewata sebesar 76% dan Selayar sebesar 70%. Semakin tinggi konsentrasi EMS dan semakin lama waktu perendaman yang digunakan maka semakin menurun persentase pertumbuhan kalus. LC50 varietas Dewata adalah EMS 0,3% waktu 30 menit sedangkan LC50 varietas Selayar adalah EMS 0,1% waktu 60 menit.Semakin tinggi suhunya maka semakin berkurang toleran adaptasi tanaman tersebut, dan pertumbuhan kalus semakin sedikit. Bahkan pada suhu tertinggi yaitu suhu 35°C tidak ada pertumbuhan kalus sama sekali.Kata Kunci: Induksi mutasi, Triticum aestivum, EMS, seleksi in vitro, kalus

scholarly journals Biplot Yield Analysis of Heat-Tolerant Spring Wheat Genotypes (Triticum Aestivum L.) in Multiple Growing Environments

2018 ◽  
Vol 3 (1) ◽  
pp. 404-413 ◽  
Author(s):  
Akbar Hossain ◽  
M. Farhad ◽  
M.A.H.S. Jahan ◽  
M. Golam Mahboob ◽  
Jagadish Timsina ◽  
...  
Keyword(s):  
Heat Stress ◽  
Sowing Date ◽  
Triticum Aestivum L ◽  
Gge Biplot ◽  
Wheat Varieties ◽  
Wheat Genotypes ◽  
Ecological Zones ◽  
Biplot Analysis ◽  
Sowing Dates ◽  
Late Sowing

Abstract It is important to identify and develop stable wheat varieties that can grow under heat stress. This important issue was addressed in Bangladesh using six wheat genotypes, including three existing elite cultivars (‘BARI Gom 26’, ‘BARI Gom 27’, ‘BARI Gom 28’) and three advanced lines (‘BAW 1130’, ‘BAW 1138’, ‘BAW 1140’). Six sowing dates, namely early sowing (ES) (10 November), optimum sowing (OS) (20 November), slightly late sowing (SLS) (30 November), late sowing (LS) (10 December), very late sowing (VLS) (20 December) and extremely late sowing (ELS) (30 December) were assessed over two years in four locations, representative of the diversity in Bangladesh’s agro-ecological zones. In a split plot design, sowing dates were allocated as main plots and genotypes as subplots. A GGE biplot analysis was applied to identify heat tolerance and to select and recommend genotypes for cultivation in heat-prone zones. All tested genotypes gave greatest grain yield (GY) after OS, followed by SLS, ES and LS, while VLS and ELS gave smallest GY. When GY and the correlations between GY and stress tolerance indices were considered, ‘BAW 1140’, ‘BARI Gom 28’ and ‘BARI Gom26’ performed best under heat stress, regardless of location or sowing date. In contrast, ‘BARI Gom 27’ and ‘BAW 1130’ were susceptible to heat stress in all locations in both years. Ranking of genotypes and environments using GGE biplot analysis for yield stability showed ‘BAW1140’ to be most stable, followed by ‘BARI Gom 28’ and ‘BARI Gom 26’. Wheat sown on November 20 resulted in highest GY but that sown on December 30 resulted in lowest GY in both years. In conclusion, ‘BAW 1140’, ‘BARI Gom 28’ and ‘BARI Gom 26’ are the recommended wheat genotypes for use under prevailing conditions in Bangladesh.

scholarly journals Effect of Sowing Dates and Varieties on Yield and Quality Performance of Wheat (Triticum aestivum L.)

2019 ◽  
Vol 39 (04) ◽  
Author(s):  
Mohammad Yusuf ◽  
Satish Kumar ◽  
A K Dhaka ◽  
Bhagat Singh ◽  
Axay Bhuker
Keyword(s):  
Triticum Aestivum ◽  
Grain Yield ◽  
Protein Content ◽  
Harvest Index ◽  
Triticum Aestivum L ◽  
Test Weight ◽  
Wheat Varieties ◽  
Quality Performance ◽  
Yield And Quality ◽  
Sowing Dates

A field experiment conducted during Rabi season of 2017-18 at wheat research farm of CCS Haryana Agricultural University, Hisar, India to study the effect of sowing dates and varieties on yield and quality performance of wheat (Triticum aestivum L.). The experiment was laid out in split plot design with three replications containing four sowing dates viz. 5th November, 25th November, 15th December and 5th January as main plot treatments and seven wheat varieties i.e. HS 562, HD 2967, HD 3086, HI 1544, MACS 6222, WR 544 and WH 1105 as sub plot treatments. On the basis of one year study it was concluded that among sowing dates, 5th November sowing is the most economical and suitable than rest of the sowing dates. 5th November sown crop recorded significantly longer spike (11.7 cm), higher number of effective tillers (98.3 per mrl), grains per spike (48.6), test weight (39.9 g), grain appearance score (8.3), hectoliter weight (82.9 kg/hl), grain yield (5432 kg ha-1) and harvest index (39.0%) compared to rest of the sowing dates, while highest protein content (12.9 %) was observed with 5th January sown crop. Maximum net return (Rs.54, 262 ha-1) and B: C (1.73) were recorded with 5th November sowing. Among the varieties, HI 1544 recorded significantly higher number of effective tillers (94.6 per mrl), grains per spike (48.4), test weight (38.6 g), grain yield (4920 kg ha-1) harvest index (39.2), grain appearance score (8.1) and hectoliter weight (82.0 kg/hl), while variety WH 1105 resulted in longer spike (11.5 cm) and WR 544 in higher protein content (12.6 %) as compared to rest of the varieties. While comparing the interaction of varieties with date of sowing, HI 1544 produced significantly higher grain higher yield (6007 kg ha-1) of wheat sown at 5th November which was statistically at par with WH 1105 (5833 kg ha-1) and HD 3086 (5616 kg ha-1) at same date of sowing. Delayed sowing of HI 1544 from 5th November to 25th November reduced the grain yield by 9.1 per cent; to 15th of December by 21.0 per cent and to 5th January by 42.3 per cent.

scholarly journals Studies on certain aspects of seed-borne fungi. VI. Fungi associated with different cultivars of wheat (Triticum aestivum L.)

2014 ◽  
Vol 14 (1-2) ◽  
pp. 143-149
Author(s):  
K. K. Pandey
Keyword(s):  
Triticum Aestivum ◽  
Aspergillus Terreus ◽  
Internal Surface ◽  
Triticum Aestivum L ◽  
Wheat Varieties ◽  
Culture Filtrates ◽  
Alternaria Tenuis

Fungi associated with eight cultivars of wheat have been investigated. Twenty seven species were isolated from external and internal surface of all the wheat (<i>Triticum aestivum</i> L.) cultivars respectively. Out of five dominant and subdominant fungi anly <i>Aspergillus terreus</i> and <i>Alternaria tenuis</i> were able to colonize internally. The culture filtrates of test fungi reduced the germination of all wheat varieties up to different degrees.

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