Related for Chullin 271:62
ישראל שלקח שדה בסוריא מעובד כוכבים עד שלא הביאה שליש חייב משהביאה שליש ר"ע מחייב בתוספת וחכמים פוטרין
from a gentile before the produce had reached a third of its growth, it is subject [to tithe]; if it had already reached a third of its growth,<span class="x" onmousemove="('comment',' At which stage corn becomes liable to tithe, cf. Ma'as. I, 3.');"><sup>44</sup></span>
Tosefta Terumot
We do not take terumah from produce [that is harvested] before it is one-third ripe (cf. Hallah 1:3). How do you know if it is one-third ripe or if not? If it is planted and something has sprouted, it is known that it one-third ripe. If it is planted and something has not sprouted, it is known that it is not one-third ripe.
Ask RabbiBookmarkShareCopy