REVACH L'DAF
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SUMMARY
1. A stalk was pulled out of the ground and Ma'aser was separated from it. It was replanted and grew. There is a doubt about whether Ma'aser must be separated again.
2. If wheat or barley was planted, even though Ma'aser was already separated from it, Ma'aser must be separated again from the produce which grows from it.
3. A Litra of onions was picked and Ma'aser separated from it. It was replanted and grew. Ma'aser must be separated from all of it.
4. Produce was planted in a non-perforated pot. After it started to grow, the pot was perforated, and the produce continued to grow. There is a doubt about whether Ma'aser may be separated from it.
5. Grain was heaped into a pile, the pile was smoothed over, and a stalk was taken from it and replanted in the ground. It subsequently was designated as Terumah. There is a doubt about whether it is Terumah.
6. A Kosher bird was laying an egg when it died. At the time of the bird's death, the egg was half inside the bird and half outside. If one eats the portion of the egg that is inside the bird, it is Metamei with Tum'as Beis ha'Beli'ah.
7. It is forbidden to plant Kil'ayim in a non-perforated pot.
8. The five types of grain (wheat, barley, spelt, oats, and rye) are Chayav in Chalah, and they combine with each other to make the minimum Shi'ur of Chalah.
9. One does not fulfill his obligation to eat Matzah on Pesach with Matzah made from rice or millet.
10. The casing of wheat combines for the size of an egg for Tum'as Ochlin. The casing of barley, however, combines only if is damp and not dry.
11. It is forbidden to harvest any of the five types of grains prior to the harvesting of the Omer.
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A BIT MORE
1. The doubt is whether the original stalk is Chayav in Ma'aser again, since the new growth is Chayav in Ma'aser, or whether the original stalk is exempt from Ma'aser.
2. Even though Ma'aser was already separated from it, the growth is something new and Ma'aser must be separated from it because the original seeds rot in the ground.
3. Since this is the usual manner in which onions are planted, Ma'aser must be separated from all of it, even from the original Litra.
4. The doubt is that perhaps the produce which grew after the pot was punctured is Chayav in Ma'aser mid'Oraisa, in which case Ma'aser may not be separated from the original produce on behalf of the produce which grew after the pot was punctured, because one may not separate Ma'aser from produce which is exempt from Ma'aser on behalf of produce which is Chayav in Ma'aser.
5. The doubt is whether the grain remains Chayav in Terumah and Ma'aser, even after it is replanted, since it was once Chayav, and thus it may be designated as Terumah for other produce, or whether it is no longer considered Tevel once it is replanted in the ground.
6. The Neveilah of a Kosher bird is Metamei a person with Tum'as Beis ha'Beli'ah; it causes the person who swallows it to become Tamei. One who eats the egg while it is still inside the bird is considered as though he eats the actual Neveilah itself. However, if one extracts the egg from the bird before he eats it, it is not Metamei him.
7. If one separates Terumah from a non-perforated pot on behalf of produce in a perforated pot, the Terumah takes effect, but he must separate Terumah again from the perforated pot.
8. However, not all types of grain combine with each other. Wheat combines only with spelt, while barley combines with all of the other types except wheat.
9. Since rice and millet cannot become Chametz, Matzah made from them cannot be used for the Mitzvah to eat Matzah.
10. If the casing of barley is dry, even the edible kernel of barley does not combine for Tum'as Ochlin, since the casing intervenes. However, if it is damp, it combines for the size of an egg for Tum'as Ochlin, because it serves as a Shomer (guard) for the kernel.
11. The Minchas ha'Omer must be brought from barley, and not from any other type of grain. Nevertheless, a Gezeiras ha'Kasuv states that the prohibition against harvesting the grain prior to the harvesting of the Omer applies to all types of grain.
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