Yield of sunflower

Orobanche cumana is a parasitic plant that can lead to advanced losses in yield of agricultural lands cultivating sunflower, depending on the sunflower varieties and the level of contamination. In our study, genetic diversity of six O. cumana populations from the Thrace region of Turkey was determined with the help of eight SSR (microsatellite) loci. All SSR loci were polymorphic. A total of 23 alleles were determined for the analyzed 120 samples. Allele number of each SSR locus ranged from two to six. Mean number of alleles (Na = 2.271), effective allele number (Ne = 1.

10p tudichquannguyet 29-11-2021 8 1   Download

Sclerotinia sclerotiorum is a necrotrophic fungus that causes Sclerotinia head rot (SHR) in sunflower, with epidemics leading to severe yield losses. In this work, we present an association mapping (AM) approach to investigate the genetic basis of natural resistance to SHR in cultivated sunflower, the fourth most widely grown oilseed crop in the world.

13p vijichea2711 28-05-2021 11 1   Download

The present investigation entitled “Combining Ability Studies in Sunflower (Helianthus annuus L.)” was undertaken with objective to estimate the gca and sca effect for seed yield and its components in sunflower. The experiment material under study consisted of four CMS lines and eight restorer lines, crossed in LxT model to produce 32 hybrids during Summer- 2017-18.

7p cothumenhmong11 11-05-2021 18 2   Download

The study revealed that maximum contribution to divergence was made by plant height, seed yield per plant and oil content. Cluster I composed of restorer genotypes which are having higher mean value for volume weight. RHA-91, which was included in cluster III recorded maximum mean value for oil content. Cluster V (CMS109B) showed maximum mean value for oil yield and seed filling per cent. Based on cluster mean values for a given characters, we can select highly divergent genotypes from the respective clusters and can be used in hybridization work.

5p cothumenhmong9 04-01-2021 12 2   Download

Sunflower (Helianthus annuus L.) is an important edible oilseed crop in the country next to groundnut and soybean. One of the major factors for reduction in area of the crop is being attributed to the occurrence of fungal and viral diseases like sunflower necrosis disease (SND) and Sunflower leaf curl virus (SuLCV) resulting in yield loss in most of the sunflower growing regions of Southern and Northern India. In Karnataka, SuLCV has been reported to occur in almost all the popular sunflower hybrids grown during kharif, rabi and summer seasons with varied intensity.

5p cothumenhmong9 04-01-2021 8 1   Download

After nitrogen, phosphorus and potassium, sulphur is the fourth nutrient, whose deficiency is widespread in India. Sulphur deficiency is observed primarily due to high crop yield and therefore higher rate of sulphur removal by crops, and lesser use of sulphur-containing fertilizers. Boron foliar sprays seemed to overcome the deleterious effects of drought by overcoming the drought-related molecular responses and consequently appeared to meliorate sunflower growth under insufficient water conditions.

7p gaocaolon9 22-12-2020 15 2   Download

This study was undertaken to evaluate the performance of sunflower sown by different methods in comparison to the manual sowing. The yield obtained in manual sown crop with the help of marker was found to be higher as compared to mechanical planter.

7p gaocaolon9 22-12-2020 16 2   Download

Present investigation entitled “Impact of weather parameters on yield of kharif sunflower (Helianthus annuus L.) Under different growing environments in scarcity zone of Maharashtra.” was carried out during 2013-17 at Zonal Agricultural Research Station, Solapur, Maharashtra State (India). The experiment was conducted in split plot design with three replications.

12p trinhthamhodang1216 19-11-2020 16 2   Download

Major improvement in sunflower breeding requires heterotic hybrids which can be achieved by tapping combining ability of F1 hybrids developed from crossing of two genetically diverse female lines with male testers. In the present study, 56 hybrids were evaluated derived from four lines and fourteen testers’ crosses in a line × tester mating design. The analysis of variance revealed existence of highly significant differences (p=0.05) among genotypes, parents and parents vs crosses indicating the presence of heterosis for quantitative traits in sunflower.

12p caygaocaolon8 07-11-2020 16 2   Download

Increasing seed yield and oil content is one of the most important goals in sunflower (Helianthus annuus L.) breeding programs. The aim of any plant breeder includes selection from natural population or artificially developed for one or several characters. In the present investigation, twenty sunflower hybrids were evaluated for various parameters under field conditions to estimate genetic parameters, correlation coefficient and path analysis.

11p angicungduoc8 07-11-2020 18 3   Download

A field experiment was conducted at the Oilseed Research Unit, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola during the Rabi season of 2014-15 to study the relative performance of herbicides and cultural practices on weed control in sunflower as well as to study its effect on growth and yield of sunflower.

9p angicungduoc8 07-11-2020 10 1   Download

In recent years, high throughput technologies have led to an increase of datasets from omics disciplines allowing the understanding of the complex regulatory networks associated with biological processes. Leaf senescence is a complex mechanism controlled by multiple genetic and environmental variables, which has a strong impact on crop yield.

10p vioklahoma2711 19-11-2020 9 2   Download

A field experiment was conducted to study the effect of different ratios and levels of nitrogen and phosphorus fertilizer on the productivity of hybrid sunflower (cv. RSFH 130) on medium deep black soil under protective irrigation at Agricultural Research Station, Hagari, Ballari, University of Agricultural Sciences, Raichur, Karnataka.

7p nguathienthan8 20-10-2020 18 2   Download

The greatest limitation for increasing the productivity of this crop is inadequate supply of nutrients and maintenance of optimum plant population. In view of above the present investigation was carried out to study the effect of plant density and nutrient management on growth and yield of sunflower.

8p nguaconbaynhay8 13-10-2020 18 2   Download

The field experiments were conducted at Eastern Block farm of Tamil Nadu Agricultural University during rabi season of 2015 and 2016, to study the effect of different sowing density and nutrient management on growth, yield and nutrient uptake of sunflower (Helianthus annuus L.). The experiment was laid out in a randomized block design with eleven treatment combinations and replicated thrice.

8p nguaconbaynhay8 13-10-2020 12 2   Download

This disease causes considerable yield loss in Andhra Pradesh particularly in Rabi season. The present investigation was taken up to find out effective fungicides for efficient management of the disease.

4p chauchaungayxua8 03-10-2020 6 1   Download

The present experiment was laid out to find out the effect of sulphur and boron levels and methods of application of boron on growth and yield of sunflower.

4p trinhthamhodang1215 23-09-2020 13 1   Download

A field experiment was conducted in the premises of Pepsico Pvt. Ltd., near Bengaluru during 2013-14 to study the effect of beverage industry effluent on growth, yield and quality of sunflower with ten treatments replicated thrice using RCBD design. The beverage industry effluent was neutral in reaction, medium in electrical conductivity (1.59 dSm-1 ), BOD (42.2 mg L-1 ) and COD (143 mg L-1 ) but low in plant nutrients content. Among the treatments, growth parameters like plant height, head diameter and number of leaves (184.5, 16.1 cm and 32.

13p angicungduoc6 20-07-2020 15 1   Download

Fly ash has tremendous potential as a nutrient supplement and plays a favourable role in increasing growth performance. Fly ash constitutes above 70% of the whole amount of residues formed in power plants through combustion of coal. The addition of Fly ash in soil improves or changes various physical, chemical and biological characteristics of soil. Fly ash is used for the improvement of the soil texture, water holding capability, density, bulk density, porosity etc. by using in different ratio with soil. For the growth of plant and crop yield fly ash is used as ameliorate in acidic soils.

14p quenchua6 15-06-2020 6 1   Download

The Present investigation was carried out to evaluate 42 sunflower hybrids, their parents involving seven cytoplasmic male sterile lines and six restorer lines along with three checks for their stability across three different locations of Telangana during Rabi, 2008- 09. Pooled analysis revealed that significant differences between genotypes and environments. Highly significant genotype × environment interaction for all the characters studied.

13p angicungduoc5 14-06-2020 5 0   Download