The Mishnah
כלאים ה׳Kilayim 5
Perek 5 of 9 in Kilayim — 8 mishnayot
Mishnah 1א׳
כֶּרֶם שֶׁחָרַב, אִם יֶשׁ בּוֹ לְלַקֵּט עֶשֶׂר גְּפָנִים לְבֵית סְאָה, וּנְטוּעוֹת כְּהִלְכָתָן, הֲרֵי זֶה נִקְרָא כֶּרֶם דַּל. כֶּרֶם שֶׁהוּא נָטוּעַ עִרְבּוּבְיָא, אִם יֶשׁ בּוֹ לְכַוֵּן שְׁתַּיִם נֶגֶד שָׁלֹשׁ, הֲרֵי זֶה כֶרֶם. וְאִם לָאו, אֵינוֹ כֶרֶם. רַבִּי מֵאִיר אוֹמֵר, הוֹאִיל וְהוּא נִרְאֶה כְתַבְנִית הַכְּרָמִים, הֲרֵי זֶה כָרֶם:
A vineyard that has become destroyed [uprooted or dried out], if it is possible to pick [grapes] from ten vines within a beit se'ah and they were planted according to the law, it is called a poor vineyard. A vineyard that has been planted in an irregular fashion [not in sraight rows], if there are among them [five vines] two opposite three [two facing each other and one projecting like a tail], it is considered a vineyard, but if not, it is not considered a vineyard. Rabbi Meir says, Since it appears in the form of a vineyard [it has rows of vines although not in sraight rows] it is in a vineyard.
Mishnah 2ב׳
כֶּרֶם שֶׁהוּא נָטוּעַ עַל פָּחוֹת פָּחוֹת מֵאַרְבַּע אַמּוֹת, רַבִּי שִׁמְעוֹן אוֹמֵר, אֵינוֹ כֶרֶם. וַחֲכָמִים אוֹמְרִים, כֶּרֶם, וְרוֹאִין אֶת הָאֶמְצָעִיּוֹת כְּאִלּוּ אֵינָן:
A vineyard that has been planted with less than four cubits [between each row], Rabbi Shimon says it is not a vineyard [because they are too close], and the Sages say [it is a] vineyard and we regard the middle ones as if they are not there [the outermost rows combine to the two opposite two rule].
Mishnah, Torat Emet 357 edition, via Sefaria — public domain
English: Eighteen Treatises from the Mishna, tr. D. A. de Sola and M. J. Raphall, 1843 — public domain