According to Karaosmanoğlu & Üstün (2022) they analyzed different chemical and physical properties and found that 6 hazelnut fruit cultivars are different if grown under organic or conventional conditions. The Palaz hazelnut cultivar in organic conditions the humidity is 3.90 ± 0.11 g/100g and in conventional conditions it is 4.98 ± 0.14 g/100g. The authors p < 0.05, and if I calculate the student's t-test knowing N=6, using the data above on the website Graphpad Students T test online the calculated p < 0,001. Other signifacative diffference is the ash. In organical conditions, it is 2.39 ± 0.02 g/100g and in conventional conditions is 2.33 ± 0.02 g/100g. With the student t test i had calculate that p < 0.05 and it scentificaly accepted .With the same method, we prove to do the same test on a different cultivar (Çakıldak)to see if the proteines are stadisticaly diferent, i Found that in conventonal conditions, this cultivar have 17,14 ± 0,28 g/100g of protein and in organic conditions it have 16.14 ± 0.29 g/100g. With the student T test i calculate that p< 0,01. It don't apear in the original document. In their document.
Also I found that The mineral content in organic and conventional hazelnuts is significatively different acording to the authors in:
if we do the student t test to comprove if the boron is stadisticaly diiferent, I did the student t test with the palaz cultivar and Çakıldak cultivar knowing that the n is 6 for the two cultvar.
-in conventional conditions palaz has 2.03 ± 0.10 g/100g in conventional conditions, and in organical conditions 2.42 ± 0.10 g/100g, with the student t test i have calculated that p< 0.02
-in conventional conditions Çakıldak has 2.00 ± 0.04 g/100g, and in organical conditions 2.25 ± 0.04 g/100g, with the student t test i have calculated that p< 0,00
the document don't have the information of how they calculated the mineral values.
we need to do the same process with the copper that in the boron. Palaz cultivar and Çakıldak cultivar knowing that the n is 6 for the two cultvar.
-in conventional conditions palaz has 1.85 ± 0.08 g/100g, and in organical conditions 2.63 ± 0.08 g/100g, with the student t test i have calculated that p< 0.0001
-in conventional conditions Çakıldak has 1.82 ± 0.08 g/100g, and in organical conditions 2.66 ± 0.08 g/100g, with the student t test i have calculated that p< 0,0001
the document don't have the information of how they calculated the mineral values.
another time we do the student T test knowing that n is 6 for the two cultvar:
-in conventional conditions palaz has 2.94 ± 0.16 g/100g, and in organical conditions 3.08 ± 0.16 g/100g, with the student t test i have calculated that p > 0,5. There are no diferences in this cultivar.
-in conventional conditions Çakıldak has 2.95 ± 0.15 g/100g, and in organical conditions 3.66 ± 0.15 g/100g, with the student t test i have calculated that p< 0,007.
the document don't have the information of how they calculated the mineral values.
we do the same with potassium, knowing that n is 6 for the two cultvar:
-in conventional conditions palaz has 722.31 ± 36.71 g/100g, and in organical conditions 665.38 ± 36.71 g/100g, with the student t test i have calculated that p > 0,2. There are no diferences in this cultivar.
-in conventional conditions Çakıldak has 769.15 ± 36.71 g/100g, and in organical conditions 617.29 ± 36.71 g/100g, with the student t test i have calculated that p< 0,01.
the document don't have the information of how they calculated the mineral values.
we need to do the same process with the manganese knowing that n is 6 for the two cultvar.
-in conventional conditions palaz has 3.74 ± 0.82 g/100g, and in organical conditions 5.11 ± 0.82 g/100g, with the student t test i have calculated that p > 0,2. There are no diferences in this cultivar.
-in conventional conditions Çakıldak has 3.46 ± 0.82g/100g, and in organical conditions 3.88 ± 0.82 g/100g, with the student t test i have calculated that p > 0,7. There are no diferences in this cultivar.
the document don't have the information of how they calculated the mineral values.
-in conventional conditions palaz has 2.84 ± 0.13 g/100g, and in organical conditions 2.15 ± 0.13 g/100g, with the student t test i have calculated that p > 0,003.
-in conventional conditions Çakıldak has 3.32 ± 0.13 g/100g, and in organical conditions 2.56 ± 0.13 g/100g, with the student t test i have calculated that p < 0,002.
the document don't have the information of how they calculated the mineral values.
Karaosmanoğlu H, Üstün N.S (2022) Proximate, Mineral Composition, Color Properties of Organic and Conventional Grown Hazelnuts (Corylus avellana L.) Erwerbs-Obstbau 64:261–270