Abstract
The objectives of this investigation were to evaluate the effects of different planting dates (1 May, 16 May and 1Jule) and spraying Si (100 ppm) or Se (50 ppm) 4 times on the growth characters and yield as well as the physico-chemical characters and Fatty acids compositions of peanut oil. Two field experiments were conducted at Shandweel Farm (Sohage governorate, Egypt) in 2016 and 2017, using the new local namely var. Sohage 107 (Arachis hypogaea L.). Results showed that early sowing (1May) resulted in significant increases in plant height and no. of branches /plants. Si or Se applications produced significant increases of branches /plant of late sowing (1 June) compared to control one. Results showed also that no. of Pods/plant, 100-seed weight (g), Pods/plant (g) and Pod yield (Kg fed-1) were the lowest values at late sowing date. However, Si or Se foliar applications improved the previous characters and increased dry matter production. Oil content ranged from 54.75% to 59.15%, the lowest oil content was found in seeds of plants sown late. No significant differences in RI (1.465-1.469) were found according that plant dates or mineral treatments. The highest acidity (2.46%) was recorded in plants sown late. Se application reduced the peroxide values in oils of plants sown late. The lowest IV was obtained in oils of plants sown early (87.70). Oil contained oleic acid as a major MUSFs (54.8-59.07%) and Palmitic acid as a major SFAs. The lowest value of oleic acid was obtained in plants sown late, while the highest value of linoleic acid was produced in plants sown late and sprayed with Si or Se. The highest O/L ratio accompanied with lower IV were obtained in oils of plants sown early and sprayed with either Si or Se (2.27-2.33 O/L ratio and 88.30-91.71 IV). The opposite was true with plants sown late.
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Claims 18
Claim · model-written summary
Early sowing significantly increased plant height and branch number.
- Taxon
- peanut
Arachis hypogaeat0 - Treatment
- early sowing (1May)e0
- Outcome
- plant height and no. of branches /plantse0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“early sowing (1May) resulted in significant increases in plant height and no. of branches /plants.”
t0“peanut”
Claim · model-written summary
Si spraying significantly increased branch number under late sowing.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- Sie0
- Outcome
- branches /plante0
- Direction
- increasese0
- Comparator
- control onee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Si or Se applications produced significant increases of branches /plant of late sowing (1 June) compared to control one.”
t0“peanut”
Claim · model-written summary
Se spraying significantly increased branch number under late sowing.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- See0
- Outcome
- branches /plante0
- Direction
- increasese0
- Comparator
- control onee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Si or Se applications produced significant increases of branches /plant of late sowing (1 June) compared to control one.”
t0“peanut”
Claim · model-written summary
Late sowing gave the lowest pod number, seed weight, pod mass, and pod yield.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- late sowing datee0
- Outcome
- no. of Pods/plant, 100-seed weight (g), Pods/plant (g) and Pod yield (Kg fed-1)e0
- Direction
- loweste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no. of Pods/plant, 100-seed weight (g), Pods/plant (g) and Pod yield (Kg fed-1) were the lowest values at late sowing date.”
t0“peanut”
Claim · model-written summary
Si foliar application improved the previously listed yield components and increased dry matter.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- Sie0
- Outcome
- dry matter productione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Si or Se foliar applications improved the previous characters and increased dry matter production.”
t0“peanut”
Claim · model-written summary
Se foliar application improved the previously listed yield components and increased dry matter.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- See0
- Outcome
- dry matter productione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Si or Se foliar applications improved the previous characters and increased dry matter production.”
t0“peanut”
Claim · model-written summary
Seed oil content ranged from 54.75% to 59.15%, with the lowest content after late sowing.
- Taxon
- peanutArachis hypogaeat0
- Organ / stage
- seedse0
- Outcome
- Oil contente0
- Direction
- loweste0
- Value
- 54.75% to 59.15%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oil content ranged from 54.75% to 59.15%, the lowest oil content was found in seeds of plants sown late.”
t0“peanut”
Claim · model-written summary
Refractive index did not differ significantly by planting date or mineral treatment.
- Taxon
- peanutArachis hypogaeat0
- Outcome
- RIe0
- Direction
- No significant differencese0
- Value
- 1.465-1.469e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No significant differences in RI (1.465-1.469) were found according that plant dates or mineral treatments.”
t0“peanut”
Claim · model-written summary
Late sowing produced the highest oil acidity, 2.46%.
- Taxon
- peanutArachis hypogaeat0
- Outcome
- aciditye0
- Direction
- higheste0
- Value
- 2.46%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest acidity (2.46%) was recorded in plants sown late.”
t0“peanut”
Claim · model-written summary
Se application reduced oil peroxide values after late sowing.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- Se applicatione0
- Outcome
- peroxide valuese0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Se application reduced the peroxide values in oils of plants sown late.”
t0“peanut”
Claim · model-written summary
Early-sown plants had the lowest oil iodine value, 87.70.
- Taxon
- peanutArachis hypogaeat0
- Outcome
- IVe0
- Direction
- loweste0
- Value
- 87.70e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lowest IV was obtained in oils of plants sown early (87.70).”
t0“peanut”
Claim · model-written summary
Oleic acid was the major MUSF in the oil at 54.8-59.07%.
- Taxon
- peanutArachis hypogaeat0
- Outcome
- oleic acid as a major MUSFse0
- Value
- 54.8-59.07%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oil contained oleic acid as a major MUSFs (54.8-59.07%)”
t0“peanut”
Claim · model-written summary
Palmitic acid was a major saturated fatty acid in the oil.
- Taxon
- peanutArachis hypogaeat0
- Outcome
- Palmitic acid as a major SFAse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Palmitic acid as a major SFAs.”
t0“peanut”
Claim · model-written summary
Late sowing yielded the lowest oleic acid value.
- Taxon
- peanutArachis hypogaeat0
- Outcome
- value of oleic acide0
- Direction
- loweste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lowest value of oleic acid was obtained in plants sown late”
t0“peanut”
Claim · model-written summary
Late sowing with Si spray yielded the highest linoleic acid value.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- Sie0
- Outcome
- value of linoleic acide0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest value of linoleic acid was produced in plants sown late and sprayed with Si or Se.”
t0“peanut”
Claim · model-written summary
Late sowing with Se spray yielded the highest linoleic acid value.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- See0
- Outcome
- value of linoleic acide0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest value of linoleic acid was produced in plants sown late and sprayed with Si or Se.”
t0“peanut”
Claim · model-written summary
Early sowing with Si spray gave a high O/L ratio and low IV.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- Sie0
- Outcome
- O/L ratioe0
- Direction
- higheste0
- Value
- 2.27-2.33 O/L ratioe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest O/L ratio accompanied with lower IV were obtained in oils of plants sown early and sprayed with either Si or Se (2.27-2.33 O/L ratio and 88.30-91.71 IV).”
t0“peanut”
Claim · model-written summary
Early sowing with Se spray gave a high O/L ratio and low IV.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest O/L ratio accompanied with lower IV were obtained in oils of plants sown early and sprayed with either Si or Se (2.27-2.33 O/L ratio and 88.30-91.71 IV).”
t0“peanut”
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