(Mishnah): There is a stringency of Terumah and Ma'aser that is not in Bikurim. (Stam Terumah always refers to Terumah Gedolah);

Terumah and Ma'aser forbid the granary (the rest of the crop, before they are separated), and they have a Shi'ur, and they apply to all Peros, while the Mikdash stands and when there is no Mikdash, and they apply to sharecroppers, Chakiros (they rent land on condition to pay a fixed amount of Peros from it), a Sikrikon (extortionist who took land, and the owner fears to contest him) and a Gazlan. These apply to Terumah and Ma'aser, but not to Bikurim.

There is a stringency of Bikurim that is not in Terumah and Ma'aser;

Bikurim are acquired (designation is valid) when they are attached to the ground, one can make his entire field Bikurim, and he has Achrayus (if he cannot bring (what he designated) to a Kohen in the Mikdash, he must designate other Bikurim and bring them), and they require a Korban, Shir, Tenufah and Linah (he must stay overnight in Yerushalayim).

Terumas Ma'aser is like Bikurim in two ways, and it is like Terumah in two ways;

It is taken from Tahor on Tamei, and Lo Min ha'Mukaf, like Bikurim. It forbids the granary, and it has a Shi'ur, like Terumah.

(Gemara) Question: Granted, Ma'aser forbids the granary. [Why does it teach that] Terumah forbids the granary?! (After Miru'ach, he must separate first Terumah, and then Ma'aseros. It suffices to say that Ma'aser forbids the granary! We explained this like GILYONEI HA'SHAS.)

Answer: The case is, [the Levi took Ma'aser Rishon] of sheaves (with the chaff);

(R. Avahu citing Reish Lakish): If [the Levi took] Ma'aser Rishon early (before Miru'ach) of sheaves, it is exempt from Terumah Gedolah. (In this case, Terumas Ma'aser is Me'akev eating the Ma'aser Rishon.)

[Bikurim] are acquired when they are attached to the ground, for it says "Bikurei Kol Asher b'Artzam.''

One can make his entire field Bikurim, for it says "Bikurei Kol Asher b'Artzam.'' (RAMBAM.)

One has Achrayus for them, for it says "Reishis Bikurei Admascha Tavi [Beis Hash-m Elokecha].'' (GRA)

They require a Korban, for it says here Simchah, and it says there Simchah ("v'Samachta b'Chagecha''). Just like Simchah there is Shelamim, also here it is Shelamim.

They require Shir, for it says here "ha'Tov'', and it says there "v'Hincha Lahem k'Shir Agavim Yefe Kol u'Metiv Nagen.'' (GRA)

They require Tenufah, for it says "v'Lakach ha'Kohen ha'Tene mi'Yadecha v'Hinicho'', to include Bikurim, that they require Tenufah, like R. Eliezer ben Yakov.

They require Linah, for it says "u'Fanisa ba'Boker v'Halachta l'Ohalecha'' - this teaches that whenever you are leave [the Mikdash], it is only in the morning.

Remark (R. Yonah): This applies when there is no Korban with [Bikurim, e.g. he brought it the previous day - GRA], but when there is a Korban with them, Linah is required due to the Korban.

R. Yonah citing R. Maisha and one of the Rabanan - one of them said [Terumas Ma'aser is like Bikurim, that it is taken from Tahor on Tamei] teaches that Tamei Peros are obligated in Bikurim [even though Tum'ah applies only after they are detached];

The other said, if one ate Ma'aser Rishon that was taken early, of sheaves, he is exempt [from lashes, like it says in Terumos 1:5. Our Mishnah said that Terumas Ma'aser forbids the granary, i.e. one is liable for Tevel to Terumas Ma'aser only after Miru'ach. We explained this like GILYONEI HA'SHAS.]