(Mishnah): Kil'ayim is forbidden mid'Rabanan [in Chutz la'Aretz].

(Shmuel): This refers to Kil'ai ha'Kerem, but Kil'ai Zera'im is permitted [even mid'Rabanan in Chutz la'Aretz].

(R. Yochanan): [Our Mishnah] refers to Kil'ai ha'Kerem, but Kil'ai Zera'im is Asur [mid'Oraisa in Chutz la'Aretz].

(Rav Huna): When [Talmidim] from there in the west (Eretz Yisrael) descended (here to Bavel), they said so in the name of R. Yochanan, and supported [his teaching] - "Es Chukosai Tishmoru Behemtecha Lo Sarbi'a Kil'ayim Sadcha Lo Sizra Kil'ayim u'Veged Kil'ayim Sha'atnez Lo Ya'aleh Alecha'' equates Kil'ai Zera'im to Kil'ai Begadim (Sha'atnez) and Kil'ai Behemah (crossbreeding);

Just like Sha'atnez and crossbreeding, which do not depend on the land, and apply in Eretz Yisrael and Chutz la'Aretz, so Kil'ai Zera'im, even though it depends on the land, applies in Eretz Yisrael and Chutz la'Aretz.

A man seeded his field [in Eretz Yisrael] with barley and turnips [together]. Chanan Gavisa passed and uprooted them. The case came in front of Shmuel, and he praised him.

Note: Our text (Shmuel fined him; it discusses Chutz la'Aretz) is difficult. Since Shmuel permits, why is this a fine? He owes for overt damage (CHAZON ISH 10:11)!

(Beraisa): One may not work with a Yisrael with [cultivating] Kil'ayim, but one may uproot it with him, for he diminishes the Aveirah.

Note: I changed the text, for d'Tani' connotes that we bring the Beraisa to show why he praised him, i.e. it is good to uproot Kil'ayim. Why do we need a Beraisa? A Mishnah (Kil'ayim 8:1) explicitly forbids keeping Kil'ai Zera'im, and Shekalim 1:1 says that we send Sheluchim to uproot Kil'ayim! R. SHLOMO SIRILIYO's text totally omits this Beraisa.

(Beraisa): One may not work with a Nochri with [cultivating] Kil'ayim, whether Kil'ai ha'Kerem or Kil'ai Zera'im. However, cities enveloped within Eretz Yisrael, such as Einah, Eimah and their colleagues (similar cities), we work with them with Kil'ayim.

Just like Kil'ayim applies in Eretz Yisrael, Kil'ayim applies in Chutz la'Aretz.

Shmuel [who permits Kil'ai Zera'im in Chutz la'Aretz] explains 'one may not work with a Nochri with Kil'ayim in Eretz Yisrael, whether Kil'ai ha'Kerem or Kil'ai Zera'im. However, cities enveloped within Eretz Yisrael, such as Einah, Eimah and their colleagues, we work with them with Kil'ayim;

Just like Kil'ayim applies in Eretz Yisrael, Kil'ayim applies in Chutz la'Aretz - Kil'ai ha'Kerem, buy Kil'ai Zera'im is permitted.

R. Yochanan [who forbids Kil'ai Zera'im in Chutz la'Aretz] explains 'one may not work with a Nochri with Kil'ayim in Eretz Yisrael, whether Kil'ai ha'Kerem or Kil'ai Zera'im;

However, cities enveloped within Eretz Yisrael, such as Einah, Eimah and their colleagues, we work with them with Kil'ayim. Just like Kil'ayim applies in Eretz Yisrael, Kil'ayim applies in Chutz la'Aretz - this (cities enveloped...) applies to Kil'ai ha'Kerem (which is permitted in Chutz la'Aretz), and this (just like...) applies to Kil'ai Zera'im (GRA).