scholarly journals Overexpression of a Chromatin Architecture-Controlling ATPG7 has Positive Effect on Yield Components in Transgenic Soybean

2017 ◽  
Vol 5 (3) ◽  
pp. 237-242 ◽  
Author(s):  
Hye Jeong Kim ◽  
Hyun Suk Cho ◽  
Jun Hun Pak ◽  
Kook Jin Kim ◽  
Dong Hee Lee ◽  
...  
Keyword(s):  
Yield Components ◽  
Transgenic Soybean ◽  
Chromatin Architecture ◽  
Effect On Yield ◽  
Positive Effect

Finding new QTL for yield traits based on a high-density genetic map in the super hybrid rice Nei2You No.6

2019 ◽  
Author(s):  
Miao Zhang ◽  
Zhengping Zhou ◽  
Yuyu Chen ◽  
Yongrun Cao ◽  
Chenwei Deng ◽  
...  
Keyword(s):  
Complex Traits ◽  
Yield Components ◽  
Average Density ◽  
High Density ◽  
Yield Traits ◽  
Target Region ◽  
Effect On Yield ◽  
Positive Effect ◽  
High Density Linkage Map ◽  
1000 Grain Weight

Abstract Background Rice is one of the most important food crops in the world. To determine the genetic basis of yield components in super rice Nei2You No.6, 387 recombinant inbred sister lines (RISLs) were obtained for mapping quantitative trait loci (QTL) responsible for yield-associated traits, such as 1000-grain weight (TGW), grain number per plant (GNP), number of panicles per plant (NP), and grain yield per plant (GYP). Results Using whole genome re-sequencing, a high-density linkage map consisting of 3203 bin markers was constructed with total genetic coverage of 1951.1 cM and an average density of 0.61 cM. As a result of the multi-environment test, 43 yield-related QTL were mapped to all 12 chromosomes, among which 28 inherited from Nei2B showed a positive effect on yield traits. Nine QTL, qTGW-1a, qTGW-5, qTGW-7, qTGW-10b, qTGW-10c, qTGW-12, qNP-7, qGNP-6c, and qGYP-6b, showed stable effects across multiple environments. Five of the nine QTL were co-located with previously reported QTL, and four novel loci, qTGW-7, qTGW-12, qGNP-6c, and qNP-7, were identified in the present study. Subsequently, qNP-7, qTGW-12, and qTGW-7 were validated using corresponding paired lines which differed only in the target region. Conclusions the RISL population is an effective tool for mapping and validating QTL of complex traits, for instance, yield-associated traits, and newly detected QTL provide new genetic resources for research of yield components and molecular breeding in rice.

scholarly journals Effects of rates of nitrogen on yield and yield components of winter triticale

2016 ◽  
Vol 61 (2) ◽  
pp. 127-135 ◽  
Author(s):  
Dragana Lalevic ◽  
Milan Biberdzic
Keyword(s):  
Yield Components ◽  
Nutritional Value ◽  
Forage Crop ◽  
Winter Triticale ◽  
Genetic Potential ◽  
Yield And Yield Components ◽  
Effect On Yield ◽  
Set Up ◽  
Positive Effect ◽  
Different Doses

Due to the high genetic potential for yield and favourable nutritional value, triticale is a promising plant species. For achieving high and stable yields, it is necessary to have favorable agroclimatic conditions of the locality, variety and advanced agricultural techniques, with special emphasis on fertilizing. This study examines the effect of increasing rates of nitrogen on yield and yield components of five cultivars of winter triticale: Odisej, Kg-20, Triumph, Rtanj and Tango. The three-year trial (2009-2012), which was set up in a randomized block system with three replications, included control and three different doses of nitrogen fertilization (0, 60, 90 and 120 kg ha-1). In all variants of fertilization, 80 kg ha-1 P2O5 and K2O were added beside nitrogen. The obtained results showed that the use of nitrogen had a positive effect on yield and yield components in all variants and in all cultivars. The variety Tango had the highest average grain yield, while the variety Kg-20 had the lowest. Also, Tango had the highest value of the 1000 grain mass and the number of grains per spike, while Triumph had the highest value of hectoliter weight. The application of fertilizers led to a very large and significant increase of yield compared with the control. Accordingly, all studied cultivars had the highest yield with the highest quantities of nitrogen (120 kg ha-1). Considering that triticale is intended mainly for feeding livestock, the results of these studies would be valuable in terms of its growing as a forage crop as well as in terms of its breeding for grain quality and productivity.

Evaluation of Yield Components from Transgenic Soybean Overexpressing Chromatin Architecture-Controlling ATPG8 and ATPG10 Genes

2019 ◽  
Vol 7 (1) ◽  
pp. 34-41 ◽  
Author(s):  
Hyun Suk Cho ◽  
Dong Hee Lee ◽  
Ho Won Jung ◽  
Seon-Woo Oh ◽  
Hye Jeong Kim ◽  
...  
Keyword(s):  
Yield Components ◽  
Transgenic Soybean ◽  
Chromatin Architecture

Agronomic evaluation of a tiller inhibition gene (tin) in wheat. I. Effect on yield, yield components, and grain protein

2005 ◽  
Vol 56 (2) ◽  
pp. 169 ◽  
Author(s):  
B. L. Duggan ◽  
R. A. Richards ◽  
A. F. van Herwaarden ◽  
N. A. Fettell
Keyword(s):  
Triticum Aestivum L ◽  
Kernel Weight ◽  
Grain Protein ◽  
Terminal Drought ◽  
Spike Number ◽  
Effect On Yield ◽  
Productive Tiller ◽  
Wheat Lines ◽  
Positive Effect ◽  
Yield Penalty

Reduced tillering cereals have been proposed as being advantageous under terminal drought conditions through their reported reduction in non-productive tiller number and reduced soil water use prior to anthesis. This study was conducted to determine whether wheat (Triticum aestivum L.) lines containing the tiller inhibition (tin) gene have a yield penalty over their commercial near-isogenic counterparts. A terminal drought was experienced in all experiments. The effects of the tin gene were investigated in 4 different near-isogenic pairs of lines grown at 2 sowing densities at 4 locations in the eastern Australian wheatbelt over a 3-year period. Averaged over all experiments and lines, grain yield was unaffected by the presence of the tin gene. However, the highest yielding line contained the tin gene and its yield was 5% higher than all other lines. Averaged across the different genetic backgrounds, the tin gene decreased fertile spike number by 11%, increased the number of kernels/spike by 9%, and there was a 2% increase in kernel weight. The tin gene increased the harvest index by an average of 0.02, whereas above-ground biomass was reduced by 7%. Increasing sowing density from 50 to 100 kg/ha had little influence on yield or yield-related characteristics in both the restricted tillering and freely tillering lines. There was an interaction between sowing rate and the presence of the tin gene on yield, with tin lines yielding 0.2 t/ha more than the freely tillering lines at the higher sowing rate, whereas there was no effect at the lower sowing rate. The response of several lines containing the tin gene to nitrogen fertiliser was also investigated at 2 sites. Nitrogen increased spike number in all lines but the number remained around 20% less than in the freely tillering cultivars. The yield of wheat lines containing the tin gene was 6% greater than their near-isogenic pairs where nitrogen status was high in the presence of terminal drought. Grain protein concentration was unaffected by the presence of the tin gene at high grain protein sites, whereas at lower grain protein sites it had a positive effect.

scholarly journals Split fertilization as a strategy to reduce the amount of fertilizer applied in potato crops form Colombia. Case of study

2020 ◽  
Vol 14 (2) ◽  
pp. 240-248
Author(s):  
Oscar Iván Monsalve ◽  
Eduardo María Espitia ◽  
Martha Marina Bolaños-Benavides
Keyword(s):  
Soil Fertility ◽  
Potato Plant ◽  
Split Application ◽  
Potato Plants ◽  
Low Efficiency ◽  
Effect On Yield ◽  
Potato Crops ◽  
Positive Effect

In potato crops in Colombia, fertilization has low efficiency in terms of absorption of nutrients by the plant due to fixing, leaching or volatilization processes. To counter this phenomenon, we evaluated the effect of the split application of fertilizers on potato plants and soil. Five treatments were evaluated: Control - fertilization used by farmers locally; As - fertilization recommended by the lab; AsSplit - monthly split of lab recommendation; AsSplit25 - monthly split of lab recommendation, reduced globally by 25%; AsSplit50 - monthly split of the lab recommendation, reduced globally by 50%. AsSplit treatment generated the highest yield (34.13 t ha-1), while treatments that reduced the amount of fertilizer by 25% and 50% obtained the lowest yield (30.94 and 29.57 t ha-1, respectively). However, they generated the lowest amount of NO3- in the leachate measurements at 30 and 90 cm deep. Our results suggest that designing the fertilization formula and applying it according to the requirements of the potato plant and soil fertility generates a positive effect on yield crop and environmental.

scholarly journals Evaluation of nitrogen (Urea) on Zea mays L. under Balkh province climate

2020 ◽  
Vol 3 (1) ◽  
pp. 6-9
Author(s):  
Nasratullah Habibi ◽  
Friba Sikandari
Keyword(s):  
Zea Mays ◽  
Nitrogen Fertilizer ◽  
Yield Components ◽  
Zea Mays L ◽  
Agricultural Research ◽  
Block Design ◽  
High Yield ◽  
Randomized Complete Block Design ◽  
Yield And Yield Components ◽  
Effect On Yield

An experiment was conducted to evaluate effect of urea fertilizer on yield and yield components of Zea mays L. Using Randomized Complete Block Design (RCBD) split plots in three replications in agricultural research farm of Balkh University by 2019. Doses of urea used in this experiment were 0, 80, 160 and 240 kg ha-1 , respectively. It has been found that amount of nitrogen fertilizer (urea) had significant effect on yield of maize at p<0.05. The higher level of nitrogen caused the higher grain yield, number of kernels per ear, the number of grains per ear row, ear diameter, cob length, grain per plant and plant height. As a result 7.76 ton ha-1 was recorded as high yield while 240 kg ha-1 urea was used, and 5.12 ton ha-1 was recorded as low yield in treatment one with 0 kg ha-1 of nitrogen fertilizer. Finally, as a result using 240 kg ha-1 nitrogen fertilizer is recommended.

scholarly journals Influence of Planting Systems and Feeding Regimes on Dry Mass Accumulation of Cotton

2021 ◽  
Vol 9 (12) ◽  
pp. 1196-1198
Author(s):  
Jalilov Lutfiyor Sotvoldievich
Keyword(s):  
Dry Mass ◽  
Cattle Manure ◽  
Root Activity ◽  
Feeding Regimes ◽  
Effect On Yield ◽  
Positive Effect ◽  
Mass Accumulation

Annotation: In order to increase the organic biomass in a bush, at least 15 t / ha of semi-rotted cattle manure before plowing, if possible plowed to 30 t / ha in autumn and then sowing in spring, retains the ability to absorb root activity longer, which has a positive effect on yield. reaches

scholarly journals Potassium Fertigation to Enhance the Performance of Hypoxis hemerocallidea

HortScience ◽  
2021 ◽  
pp. 1-9
Author(s):  
Patience Seyram Akakpo ◽  
Moosa Mahmood Sedibe ◽  
Bello Zaid ◽  
Zenzile P. Khetsha ◽  
Mokgaputsiwa P. Theka-Kutumela ◽  
...  
Keyword(s):  
Nutrient Solution ◽  
Analysis Data ◽  
Dry Mass ◽  
Ionic Balance ◽  
Fresh Weight ◽  
Primary Metabolite ◽  
Essential Nutrient ◽  
Effect On Yield ◽  
Metabolite Content ◽  
Positive Effect

Potassium (K) is an essential nutrient in plant metabolism, ionic balance, and stress resistance. In this study, the effects of K on agronomic attributes and on mineral and primary metabolite content in African potato were determined. K was administered hydroponically at four concentrations (4.00, 6.00, 8.00, and 10.00 meq·L−1) using Steiner’s universal nutrient solution. Chlorophyll content (CHL), leaf area (LA), fresh corm mass (FCM), number of roots (NR), root fresh weight (RFM), and root dry mass (RDM) were measured 18, 32, and 40 weeks after transplanting. Mineral analysis data were collected at 18 weeks, and primary metabolite data were collected at 32 weeks. Significant effects of K were observed after 18 weeks, and all test concentrations had a positive effect on yield. Calcium and boron significantly accumulated in the corm at 4.00 meq·L−1 K. Alanine and malic acid were the only metabolites affected by K concentrations. More minerals accumulated in the corm at 4.00 meq·L−1 K, whereas at 10.00 meq·L−1 K, more minerals clustered in the leaf. K applied at 4.00 meq·L−1 is recommended when growing African potato using a nutrient solution to improve corm mineral and metabolite accumulation.

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