Garden pea Varietal Susceptibility to Mycosphaerella pinodes and its Effect on Yield Components of Single Plants

2009 ◽  
Vol 70 (1) ◽  
Author(s):  
Lech Boros ◽  
Anna Wawer
Keyword(s):  
Yield Components ◽  
Mycosphaerella Pinodes ◽  
Garden Pea ◽  
Varietal Susceptibility ◽  
Effect On Yield

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.

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.

Effects of herbicide use, fungicide use and position in the field on the yield and yield components of spring barley

1992 ◽  
Vol 118 (1) ◽  
pp. 17-28 ◽  
Author(s):  
N. D. Boatman
Keyword(s):  
Yield Components ◽  
Flag Leaf ◽  
Spring Barley ◽  
Calcareous Soils ◽  
Grain Weight ◽  
Yield Response ◽  
Potential Yield ◽  
Effect On Yield ◽  
Herbicide Use ◽  
1000 Grain Weight

SUMMARYSix experiments were carried out over 2 years (1985 and 1986) in commercial spring barley crops on calcareous soils in Hampshire. Herbicides increased grain yield by 0·05–1·21 t/ha, and fungicides by 0·01–0·68 t/ha. Herbicide use affected each of the yield components ears/plant, grains/ear, 1000-grain weight and harvest index in one or more cases but the effects were not consistent between experiments or consistently related to yield increases. Fungicide use had little effect on yield components other than 1000-grain weight, which was significantly increased in all experiments. There were no significant herbicide × fungicide interactions. Large differences in yield were recorded between field edge (headland) and midfield plots, with headland plots outyielding the midfield in two of the three experiments where this effect was considered.The effects of fungicide use were accounted for by associated increases in the green lamina area of the flag leaf and second leaf at the late milk stage of grain development. This is consistent with previous work. Differences in yield response to herbicide between sites were linearly related both to weed numbers early in the season and to weed biomass at harvest. Weeds did not always directly replace crop biomass; in some experiments the combined dry matter production was greater when herbicide was not used. However, the results indicate that, where a diverse weed flora composed of species of moderate to low competitive ability is present, simple weed counts may provide a useful indication of potential yield loss.It is concluded that headland areas can often be as productive as the rest of the field, but a greater understanding of the factors involved is needed if this potential is to be realized.

Biological efficacy of Trichoderma harzianum isolate to control some fungal pathogens of wheat (Triticum aestivum) in Turkey

Biologia ◽  
2007 ◽  
Vol 62 (3) ◽  
Author(s):  
Çiğdem Küçük ◽  
Merih Kivanç ◽  
Engin Kinaci ◽  
Gülcan Kinaci
Keyword(s):  
Trichoderma Harzianum ◽  
Yield Components ◽  
Fungal Pathogens ◽  
Fusarium Culmorum ◽  
Considerable Effect ◽  
Biocontrol Agents ◽  
Gaeumannomyces Graminis ◽  
Microbial Number ◽  
Effect On Yield ◽  
Seed Application

AbstractGaeumannomyces graminis var. tritici, Fusarium culmorum and F. moniliforme are highly important and widespread pathogens of wheat in Turkey. Trichoderma isolates have been used as biocontrol agents to protect plants against soilborne diseases in several crops. The present work was carried out to evaluate the potential of Trichoderma harzianum isolate T1 as biocontrol agents for G. graminis, F. culmorum and F. moniliforme under field conditions in 2001 and 2002. Quantitative differences were found in microbial number in soil. T. harzianum T1 had considerable effect on population densities of the tested pathogens. The total number of G. graminis, F. culmorum and F. moniliforme were lower in the T. harzianum T1 application made to seed. T. harzianum T1 application to seed had increasing affect on the yield components of wheat through better control over pathogens. The greatest counts of T. harzianum T1 were detected on root segments. Seed application by T. harzianum T1 had increasing effect on yield components of wheat.

Varying irrigation rates effect on yield and yield components of chickpea

2012 ◽  
Vol 31 (5) ◽  
pp. 903-909 ◽  
Author(s):  
E. Dogan ◽  
A. Kahraman ◽  
B. Bucak ◽  
H. Kirnak ◽  
M. E. Guldur
Keyword(s):  
Yield Components ◽  
Yield And Yield Components ◽  
Effect On Yield

scholarly journals Influence of Girdling and Gibberellic Acid on Yield Components, Fruit Composition, and Vestigial Seed Formation of `Sovereign Coronation' Table Grapes

HortScience ◽  
2004 ◽  
Vol 39 (3) ◽  
pp. 541-544 ◽  
Author(s):  
Andrew G. Reynolds ◽  
Christiane de Savigny
Keyword(s):  
Gibberellic Acid ◽  
Transpiration Rate ◽  
Yield Components ◽  
Untreated Control ◽  
Titratable Acidity ◽  
Seed Formation ◽  
Table Grapes ◽  
Fruit Composition ◽  
Fruit Maturity ◽  
Effect On Yield

Vestigial seeds of `Sovereign Coronation' table grapes frequently form partial seedcoats that are perceptible during consumption. This problem was addressed through cane/cordon girdling and gibberellic acid (GA3) sprays. `Sovereign Coronation' vines were subjected to one of five treatments [untreated control; cane/cordon girdled; 15 ppm GA3 at bloom (GA1); GA1 + 40 ppm GA3 14 days later (GA2); GA2 + 40 ppm GA3 14 days later]. GA3 had no effect on yield or clusters per vine, but postbloom GA3 treatments increased cluster and berry weights and reduced berries per cluster. Fruit maturity was not consistently affected by the treatments, although slight increases in °Brix and pH and decreases in titratable acidity (TA) were associated with postbloom GA3 treatments. Use of postbloom GA3 applications reduced the number and weight of vestigial seeds with developed seedcoats, and reduced the number and weight of undeveloped seeds as well in 2 of 3 years. Girdling increased cluster and berry weights, decreased °Brix and TA, and increased pH. Transpiration rate of leaves on girdled vines was also higher than control vines on one sampling date. Data suggest that use of bloom and postbloom GA3 applications to `Sovereign Coronation' may reduce the formation of perceptible vestigial seeds and thus improve the marketability of this cultivar.

scholarly journals UJI ADAPTASI VARIETAS UNGGUL BARU TERHADAP WERENG HIJAU DAN PENYAKIT TUNGRO DI KABUPATEN MERAUKE, PROVINSI PAPUA

Agric ◽  
2017 ◽  
Vol 29 (1) ◽  
pp. 1
Author(s):  
Sudarsono Sudarsono ◽  
Dini Yuliani
Keyword(s):  
Population Density ◽  
Yield Components ◽  
Block Design ◽  
Rice Tungro Bacilliform Virus ◽  
Rice Plants ◽  
Average Population Density ◽  
Average Population ◽  
Randomized Block Design ◽  
Effect On Yield ◽  
1000 Grain Weight

<p><em><span class="fontstyle0">Tungro is one of the important diseases in rice plants caused by two types of viruses were rod virus (rice tungro bacilliform virus) and spherical virus (rice tungro spherical virus) that was transmitted by the green leafhopper (GLH) Nephotettix virescens. The purpose of this study to determine the adaptation of new improved varieties against GLH and tungro disease in Merauke, Papua Province. Research conducted at Tanah Miring District, Merauke, Papua Province between February and June 2010. The study was a randomized block design with three replications. The treatment consisted of 11 varieties, namely Inpari 1, Inpari 2, Inpari 3, Inpari 4, Inpari 5 Merawu, Inpari 6 Jete, Inpari 7 Lanrang, Inpari 8, Inpari 9 Elo, Inpari 10 Laeya, and Ciherang. Observations included the intensity of tungro and GLH population density at the age of rice plants of 1, 2, 3, and 4 weeks after planting (WAP). In addition, it was observed also the yield components of rice. The results showed that the GLH population density and the intensity of tungro disease was not significantly different at the 11 varieties tested. GLH attack had been found in 1 WAP with an average population density of 4.18 individual/20 single swing. GLH increases with the age of the rice crop with an average population density in 2 WAP (20 individual), 3 WAP (103.27 individual), and 4 WAP (154.15 individual) per 20 single swing. Tungro disease intensity in 11 varieties began were found in 3 WAP on average by 0.16% and increased at 4 WAP on average by 0.28%. Varieties significant effect on yield components such as plant height, panicle length, number of total grain/panicle, percentage of filled grain, 1000 grain weight and productivity except the number of panicles/clump. </span></em><span class="fontstyle2"><strong><span><br /> <!--[if !supportLineBreakNewLine]--><br /> <!--[endif]--></span></strong></span></p>

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