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Research Article
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Profitability Assessment of Abscisic Acid Application on Sunflower (Helianthus
annuus L.) Hybrid under Drought and Well Watered Conditions |
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Safdar Hussain,
M. Farrukh Saleem,
Javaid Iqbal,
Sajid Mahmood Nadeem,
Muhammad Ahmad
and
Muhammad Ibrahim
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ABSTRACT
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Profitability assessment has prime importance for every crop
husbandry practice and cultural operation. For this purpose, two field experiment
was carried out to investigate the response of spring planted sunflower hybrids
to different irrigation levels/schedules and foliar application of abscisic
acid. Two studies were done at the Agronomic Research Farm, University of Agriculture,
Faisalabad, Pakistan. In first study, three irrigation schedules viz. four irrigations
(25 DAS, bud initiation, flower initiation and achene formation), three irrigations
(25 DAS, flower initiation and achene formation) and three irrigations (25 DAS,
bud initiation and achene formation) were used. Sunflower hybrid Hysun-33 was
subjected to exogenous application of different concentrations (0, 5μm
and 10μm) of ABA at bud initiation or at flower initiation. In second study,
Three sunflower hybrids viz. DK-4040 (large stature), S-278 (medium stature)
and SF-187 (short stature) were subjected to different irrigation regimes and
ABA applications i.e., four irrigations; 25 Days after Sowing (DAS), at bud
initiation, flower initiation and achene formation and with no ABA spray, three
irrigations; 25 Days after Sowing (DAS), at flower initiation and achene formation
and with no ABA spray, three irrigations; 25 Days after Sowing (DAS), at flower
initiation and achene formation and with ABA spray at bud initiation, three
irrigations; 25 Days after Sowing (DAS), at bud initiation and achene formation
and with no ABA spray, three irrigations; (25 Days after Sowing (DAS), at bud
initiation and achene formation and with ABA spray at flower initiation. In
first study, It was observed that three irrigations (25 DAS, at flower initiation
and at achene formation), when 5μM ABA was applied at bud initiation under
drought resulted in more profitable as compared to exogenous application of
same concentration of ABA at flower initiation. So, it is suggested that three
irrigations (25 DAS, at flower initiation and at achene formation), with foliar
spray of 5μM ABA should be applied at bud initiation under drought. In
second study, the dominance and marginal analysis about sunflower hybrids revealed
that maximum Marginal Rate of Return (MRR) in sunflower hybrids was observed
in T1 (control). Drought stress at bud initiation or at flower initiation reduced
marginal rate of return. ABA application to DK-4040 under drought at bud initiation
showed more increase in MRR than SF-187 and S-278.
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How
to cite this article:
Safdar Hussain, M. Farrukh Saleem, Javaid Iqbal, Sajid Mahmood Nadeem, Muhammad Ahmad and Muhammad Ibrahim, 2013. Profitability Assessment of Abscisic Acid Application on Sunflower (Helianthus
annuus L.) Hybrid under Drought and Well Watered Conditions. Pakistan Journal of Nutrition, 12: 448-454.
DOI: 10.3923/pjn.2013.448.454
URL: https://scialert.net/abstract/?doi=pjn.2013.448.454
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