But your English translation or writing is very poor.

“Scientists Generate Palm Tree from 2000 yr Old Seed”
“germinate a date palm seed with an age of about 2,000 years”
“The seed, known as Methuselah, was found”
“26 months later, has grown a plant 1.20 meters tall.”
“Methuselah, found in the 60s in the desert fortress of Masada and since then carefully stored at room temperature, has thus become the seed germination world’s oldest.”
“Scientists are looking, above all, to check whether this ancient species of date palm really has healing properties, as attributed to it in ancient times.”
“It was used in cases of vomiting blood, in such diseases as tuberculosis. It is also used to treat stomach problems and diarrhea,” explained scientists.”
“Until 4 years we will not know”
“or female, and if female, whether it could fertilise”.

Do not rely on ESL speakers to write your English copy. The result is very clumsy and confusing.