Abstract
In order to improve sunflower productivity, this investigation aimed to study the performance of some genotypes to different doses of nitrogen and plant population density on seed yield and yield components. Two field Experiments carried out on the Experimental Farm of the Sakha Agriculture Research Station during 2015 and 2016 seasons. The objective of this study aimed to investigate the performance of some sunflower hybrids to different nitrogen fertilizer rates and plant population densities to growth, yield components, seed yield and its quality.The results indicated that tallest plants, highest leaves number/plant, number of achenes/head and highest values of head diameter were obtained from MS.sirena F1 genotype. Biest Brima genotype recorded the highest values of leaf area. The highest weight of 1000 seed and seed yield/ha were recorded from Nsovak genotype.The increases in nitrogen fertilizer rates to 168 Kg N/ha produced tallest plants,thick stems (cm), the highest leaves number/plant, leaf area (cm2), number of achenes/head, head diameter (cm), 1000 achene weight (gm) and achene yield (Kg/ha) in both seasons. It could observed that increasing nitrogen fertilizer from 72 to 168 Kg N/ha significantly increased seed yield by 12.0 and 11.6 % in the first and second seasons, respectively. Increasing hill spacing from 15, 20 and 25 cm produced thickness stem, highest number of leaves/plant, highest values of leaf area, maximum number of achenes/head, head diameter and weight of 1000 achene. The tallest plants and highest and achene yield were produced from 20cm hill spacing. It could concluded that increasing nitrogen fertilizer from 72 to 168 Kg N/ha and sown Nsovak genotype at dense hill spacing of 15 cm between plants maximized seed yield per unite area.
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Claims 9
Claim · model-written summary
MS.sirena F1 had the tallest plants and highest leaf count, achene count and head diameter.
- Taxon
- Sunflower
Helianthus annuust0 - Material
- MS.sirena F1e0
- Outcome
- tallest plants, highest leaves number/plant, number of achenes/head and highest values of head diametere0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sunflower”
e0“tallest plants, highest leaves number/plant, number of achenes/head and highest values of head diameter were obtained from MS.sirena F1 genotype”
Claim · model-written summary
Biest Brima had the highest leaf area.
- Taxon
- SunflowerHelianthus annuust0
- Material
- Biest Brimae0
- Outcome
- leaf areae0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sunflower”
e0“Biest Brima genotype recorded the highest values of leaf area”
Claim · model-written summary
Nsovak had the highest 1000 seed weight and seed yield per hectare.
- Taxon
- SunflowerHelianthus annuust0
- Material
- Nsovake0
- Outcome
- weight of 1000 seed and seed yield/hae0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sunflower”
e0“The highest weight of 1000 seed and seed yield/ha were recorded from Nsovak genotype”
Claim · model-written summary
Increasing nitrogen to 168 Kg N/ha gave maximum plant height, stem thickness, leaf traits, head traits and achene yield.
- Taxon
- SunflowerHelianthus annuust0
- Treatment
- 168 Kg N/hae0
- Outcome
- achene yielde0
- Direction
- higheste0
- Qualifier
- in both seasonse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sunflower”
e0“The increases in nitrogen fertilizer rates to 168 Kg N/ha produced tallest plants,thick stems (cm), the highest leaves number/plant, leaf area (cm2), number of achenes/head, head diameter (cm), 1000 achene weight (gm) and achene yield (Kg/ha) in both seasons”
Claim · model-written summary
Raising nitrogen from 72 to 168 Kg N/ha increased seed yield by 12.0% in the first season.
- Taxon
- SunflowerHelianthus annuust0
- Treatment
- 168 Kg N/hae0
- Outcome
- seed yielde0
- Direction
- increasede0
- Value
- 12.0e0
- Qualifier
- firste0
- Comparator
- 72e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sunflower”
e0“increasing nitrogen fertilizer from 72 to 168 Kg N/ha significantly increased seed yield by 12.0 and 11.6 % in the first and second seasons, respectively”
Claim · model-written summary
Raising nitrogen from 72 to 168 Kg N/ha increased seed yield by 11.6% in the second season.
- Taxon
- SunflowerHelianthus annuust0
- Treatment
- 168 Kg N/hae0
- Outcome
- seed yielde0
- Direction
- increasede0
- Value
- 11.6 %e0
- Qualifier
- seconde0
- Comparator
- 72e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sunflower”
e0“increasing nitrogen fertilizer from 72 to 168 Kg N/ha significantly increased seed yield by 12.0 and 11.6 % in the first and second seasons, respectively”
Claim · model-written summary
Wider hill spacing produced thicker stems and higher leaf, head and achene weight traits.
- Taxon
- SunflowerHelianthus annuust0
- Treatment
- Increasing hill spacing from 15, 20 and 25 cme0
- Outcome
- thickness stem, highest number of leaves/plant, highest values of leaf areae0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sunflower”
e0“Increasing hill spacing from 15, 20 and 25 cm produced thickness stem, highest number of leaves/plant, highest values of leaf area, maximum number of achenes/head, head diameter and weight of 1000 achene”
Claim · model-written summary
Spacing of 20cm produced the tallest plants and highest achene yield.
- Taxon
- SunflowerHelianthus annuust0
- Treatment
- 20cm hill spacinge0
- Outcome
- achene yielde0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sunflower”
e0“The tallest plants and highest and achene yield were produced from 20cm hill spacing”
Claim · model-written summary
The authors recommend Nsovak at 15 cm spacing and nitrogen of 168 Kg N/ha to maximize seed yield.
- Taxon
- SunflowerHelianthus annuust0
- Material
- Nsovake0
- Treatment
- 168 Kg N/hae0
- Outcome
- maximized seed yield per unite areae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sunflower”
e0“increasing nitrogen fertilizer from 72 to 168 Kg N/ha and sown Nsovak genotype at dense hill spacing of 15 cm between plants maximized seed yield per unite area”
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