The Mishnah (Demai 5:9, which says that we may tithe Peros of Yisrael on those of Nochrim,) is like R. Meir, for R. Meir says that a Nochri cannot acquire [land] in Eretz Yisrael to exempt it from Ma'aseros. (The land keeps its Kedushah. We explained this like SEFER NIR, HAGAHOS R. DINAR.)

R. Yudan and R. Shimon say, a Nochri can acquire [land] in Eretz Yisrael to exempt it from Ma'aseros.

(R. Imi citing Reish Lakish): R. Meir learns from "v'Hisnachaltem Osam li'Vneichem Achareichem Lareshes Achuzah" - this equates slaves to an Achuzah (land of Eretz Yisrael). Just like slaves, you buy from them (Nochrim), and they do not buy from you (the person himself, only his labor) - also an Achuzah, you buy from them, and they do not buy from you (the land itself, only the rights to eat the Peros).

(R. Elazar bei R. Yosi, in front of R. Yosi): A verse supports R. Meir - "veha'Aretz Lo Simacher la'Tzmisus" - absolutely. (The verse discusses a Nochri, who buys permanently, and it says that he does not acquire! - ME'OR HA'SIMCHAH, from GRA Demai 5:9)

Note: Even though there was a Tana R. Elazar ben R. Yosi, at the end of this Halachah it is clear that R. Elazar bei R. Yosi is an Amora. Also, it does not seem that we cite a Beraisa. Also, R. Yosi answered him in Arame'ic...

(R. Yosi): That very verse supports R. Shimon! "Lo Simacher" [permanently, i.e. to a Nochri], but if it was sold, it is absolutely sold!

(Rav Huna of Tzipori): R. Chaninah established in Tziporin like R. Shimon's teaching (land that a Nochri bought is exempt from Ma'aser, even if a Yisrael bought the Peros).

(R. Ze'orah in front of R. Avahu, citing R. Elazar): Even though R. Meir says that a Nochri cannot acquire [land] in Eretz Yisrael to exempt it from Ma'aseros, he agrees that he has Kinyan Nechasim.

Question: What is Kinyan Nechasim?

Answer (R. Aba): It is [rights to] eat the Peros.

Question (Mishnah): The buyer brings Bikurim, for Tikun ha'Olam. [If our Mishnah is like R. Meir, who says that a Nochri has no Kinyan for Ma'aser,] he should bring Bikurim mid'Oraisa!

If one bought a field in Yovel (i.e. at a time when Yovel applies - HAGAHOS R. DINAR), R. Ila says that he acquired land, and Aba bar Mamal says that he did not acquire land.

Question (R. Aba bar Mamal, to R. Ila): According to you, who say that he acquired land, he should be allowed to dig pits and caves!

Answer (R. Ila): The Torah said "v'Shav laAchuzaso" - intact.

R. Yakov bar Acha brought this teaching in front of [R. Yochanan and Reish Lakish]. He did not know that they argue about this;

(R. Yochanan): [If one bought a field at a time when Yovel applies,] he brings [Bikurim] and recites [the declaration. He can say "the land that You gave to me", for Kinyan Peros is like Kinyan ha'Guf];

(Reish Lakish): He does not bring and recite (Kinyan Peros is not like Kinyan ha'Guf).

(R. Lazar bei R. Yosi, in front of R. Yosi): All agree that he brings. They argue about reciting. R. Yochanan says that he brings and recites. Reish Lakish says that he brings and does not recite.