OILCROP-SUN Model for Nitrogen Management of Diverse Sunflower (&amp;lt;i&amp;gt;Helianthus annus&amp;lt;/i&amp;gt; L.) Hybrids Production under Agro-Climatic Conditions of Sargodha, Pakistan

A study was conducted on clayey soils (vertisols) of southern Telangana zone (India) characterized by low soil organic carbon, low available nitrogen and medium available phosphorous (P) and high available potassium (K). The experiment involving seven nitrogen (N) management practices (T1 to T7) involving recommended dose of fertilizers (RDF) as soil application, varied rates of foliar application of nano urea (liquid) was laid out in randomized block design replicated thrice. All the treatments were supplied with basal 50% of soil applied urea fertilizer at the time of sowing except in T1 (No nitrogen application) treatment. Results revealed that application of recommended dose of fertilizers in three splits as soil application resulted into significantly highest growth, yield ( 1774 kg) and yield attributes of sunflower, and was found profitable (Benefit:Cost ratio = 3.47) over foliar application of varied rates of nano- urea spray. Foliar application of nano urea @ 2-4 ml L-1 in T3 to T7 treatments could significantly improve growth and yield of sunflower (by 546 to 744 kg) when compared to no nitrogen application treatment. However foliar application of nano urea showed significantly lesser growth and yield compared to soil application of RDF in three splits in rabi sunflower.

show abstract

“…This has led to more leaf area and drymatter. These results are in accordance with Pattanayak et al [11] and Ahmad et al [12].…”

Section: Growth Attributessupporting

confidence: 93%

Evaluation of the Foliar Application of Nano Urea on the Performance of Rabi Sunflower (Helianthus annuus L.)

Goud

Sudhakar

Pasha

et al. 2022

IJECC

View full text Add to dashboard Cite

show abstract

“…Morphological characteristics of the plant are varietal characteristics, but under the influence of environmental factors and cultivation technologies, they may change [29]. Under the influence of nitrogen fertilizers, a yield increase of sunflower hybrids, an increase in the anthode diameter was recorded [30] [31] [32]. The height of plants with plants standing density increasing usually increases, especially with using irrigation [33].…”

Section: Morphological Features Of Plants Sunflower Yield Depending On Plants' Densitymentioning

confidence: 99%

Morphological Features of Plants and Yield of Sunflower Hybrids Cultivated in the Northern Part of the Forest-Steppe of Ukraine

Kalenska¹,

Ryzhenko²,

Novytska³

et al. 2020

AJPS

View full text Add to dashboard Cite

In Ukraine, a sunflower is the main oil crop from which more than 90% of vegetable fats are produced. An increase in production is due to the expansion of cultivation area, which necessitates research on sunflower hybrids adaptability in the northern regions of Ukraine, where in recent decades, there has been a significant change of weather conditions and which may be favorable for its cultivation. The research was carried out in the Northern part of the Forest-Steppe of Ukraine on light loam chernozems. Reaction to growing conditions of four hybrids was studied by establishing the stability and plasticity of hybrids in terms of yield formation due to changes in morphological characteristics of plants. Yield potential realization is high enough, which is provided by sufficient amounts of positive, active, effective temperatures and precipitation. Calculation of the coefficients of plasticity and stability allows identifying stable sunflower hybrids, hybrids with a high level of plasticity, and recommending them to production. The yield of early-maturing hybrid Ukrainskyi F1 increases rectilinearly with plant density increasing (r = 0.977 -0.998), while hybrids P63LL06 (r = 0.651 -0.882); NK Ferti (r = 0.589 -0.846), and NK Brio (r = 0.689 -0.804) form a higher yield at standing densities up to 60 thousand plants per hectare, and with further thickening, the yield decreases. With the thickening of sowings, the height of all hybrids plants increases (r = 0.97 -0.99), and there is a decrease in the number of seeds per anthode, and the weight of 1000 seeds. Sunflower hybrids can be divided into the groups according to the peculiarities of yield formation due to morphological features: 1) yield increases only due to sowings' thickening-Ukrainskyi F1; 2) combined efficiency-increasing sowings' density to 60 thousand plants/ha and generative organs formation-NCKBrio; 3

show abstract

“…Sun ower oil is widely used around the globe because it is rich in healthy oils, while the seed are used as animal feed (Tewari and Arora, 2018). It has great potential to meet the domestic needs of Pakistan, yet the production of sun ower has been gradually decreasing (Ahmad et al, 2017). The production of sun ower seed is affected by several abiotic and biotic stresses (Kaur et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Field Efficacy of Priming Agents to Enhance Physiological Parameters of Sunflower Under Stress From Charcoal Rot (M. Phaseolina)

Ghazanfar

Qamar

Habib

et al. 2021

Preprint

View full text Add to dashboard Cite

Charcoal rot (Macrophomina phaseolina (Tassi) Goid.) can cause significant yield losses in sunflower (Helianthus annuus L.) throughout the world. Fungicide treatments are often used to manage this pathogen, but due to costs and environmental impacts, alternative methods need to be explored. Priming is an adaptive strategy which enables plant defense systems to react more effectively to pathogen attack. The priming phase in plants can be achieved by stimuli from chemicals, beneficial microbes, arthropods, and abiotic stress which can induce defense systems in plants. The present study was conducted to evaluate the effect of different priming agents such as salicylic acid (SA), abscisic acid (AA), gibberellic acid (GA), and jasmonic acid (JA), as either seed or foliar treatments, on charcoal rot on the sunflower. The experiments were conducted under field conditions in two consecutive years (2017-2018). Ten seed of one susceptible (17577) and two moderately resistant (HA-259 and B-224) sunflower cultivars were treated with 2, 4 and 6 mM concentrations of the individual priming agents.. The plants were artificially inoculated with M. phaseolina before sowing by infesting soil, and sixty days after sowing. A number of yield parameters were quantified [head diameter (cm), 100-seed weight (g), achene per head (number), plant height (cm), stem girth (cm), shoot weight (g), root wet and dry weight (g) and chlorophyll content (mg/g)]. Among the priming agents evaluated, AA exhibited a significant impact on all yield parameters at a higher concentration (6 mM) in both susceptible and moderately resistant cultivars, followed by SA, GA, and JA. The results also revealed that seed treatment priming was more effective than foliar priming. There were statistical differences in yield parameters between both years of the study. The AA seed priming treatment showed the most promise for managing charcoal rot of sunflower. The outcome of this study will help to explore an environmentally sound and economically feasible approach for the management of charcoal rot to get sustainability in edible oil production.

show abstract

OILCROP-SUN Model for Nitrogen Management of Diverse Sunflower (<i>Helianthus annus</i> L.) Hybrids Production under Agro-Climatic Conditions of Sargodha, Pakistan

Cited by 3 publications

References 13 publications

Evaluation of the Foliar Application of Nano Urea on the Performance of Rabi Sunflower (Helianthus annuus L.)

Evaluation of the Foliar Application of Nano Urea on the Performance of Rabi Sunflower (Helianthus annuus L.)

Morphological Features of Plants and Yield of Sunflower Hybrids Cultivated in the Northern Part of the Forest-Steppe of Ukraine

Field Efficacy of Priming Agents to Enhance Physiological Parameters of Sunflower Under Stress From Charcoal Rot (M. Phaseolina)

Contact Info

Product

Resources

About