web analytics
March 5, 2015 / 14 Adar , 5775
At a Glance
Judaism
Sponsored Post


Daf Yomi


Daf-Yomi-logo

One might very well ask why the resultant esrog is not passul, just as the result of grafting two species is passul. Rabbi Shlomo Zalman Auerbach, zt”l (cited in Kashrus Arbaas Haminim, p. 182), explains that the branch of a lemon tree is capable of producing fruit by itself. Therefore, when it is grafted to an esrog tree, two viable species have been joined resulting in a third species – a hybrid fruit which is not considered an esrog. However, the pollen of a lemon flower cannot grow into a fruit by itself. It only provides genetic material, allowing the pistil of the esrog to develop into a fruit. Therefore, what results from it is considered a kosher esrog fruit, even if there are some traces of lemon.

According to this explanation, it would seem that esrog farmers might be allowed to make use of the latest techniques in agricultural biotechnology, in which chromosomes of a certain species are isolated and injected into a different species, giving it traits of the first species. Since this genetic material could not develop into a plant on its own, and is only capable of altering its new host, the result may very well be a kosher esrog tree with the longevity and durability of a lemon tree. However, the Chazon Ish (Kilayim 2:15) notes that even in such a case, the esrog will only be kosher if it has both the outer and inner appearance of a pure esrog.

About the Author: RABBI YAAKOV KLASS, rav of Congregation K’hal Bnei Matisyahu in Flatbush, Brooklyn, is Torah Editor of The Jewish Press. He can be contacted at yklass@jewishpress.com. RABBI GERSHON TANNENBAUM, rav of Congregation Bnai Israel of Linden Heights, Boro Park, Brooklyn, is the Director of Igud HaRabbanim – The Rabbinical Alliance of America.


If you don't see your comment after publishing it, refresh the page.

Our comments section is intended for meaningful responses and debates in a civilized manner. We ask that you respect the fact that we are a religious Jewish website and avoid inappropriate language at all cost.

If you promote any foreign religions, gods or messiahs, lies about Israel, anti-Semitism, or advocate violence (except against terrorists), your permission to comment may be revoked.

No Responses to “Daf Yomi”

Comments are closed.

Current Top Story
Megillat Esther
The Origins of Purim
Latest Judaism Stories
Rebbetzin Esther Jungreis

To the glee of all Israel haters it was Netanyahu who was accused of endangering US-Israel relations

Ki Tisa_lecture

Over and over, the text tells us about “keeping” Shabbat, about holiness, and a covenant – but why?

Aaron and  The Golden Calf by James Tissot

Aharon’s guilt with the golden calf is not clear-cut. What if Moshe were in his brother’s place?

Rabbi Sacks

The Sabbath is a full dress rehearsal for an ideal society that has not yet come to pass-but will

When Hashem told Moshe of the option to destroy the people and make him and his descendants into a great nation, Hashem was telling Moshe that it is up to him.

Just like Moses and Aaron, Mordechai decides to ruin the party…

An Auto Accident
‘All Agree That They Are Exempt’
(Kesubbos 35a)

Question: If Abraham was commanded to circumcise his descendants on the eighth day, why do Arabs – who claim to descend from Abraham through Yishmael – wait until their children are 13 to circumcise them? I am aware that this is a matter of little consequence to our people. Nevertheless, this inconsistency is one that piques my curiosity.

M. Goldman
(Via E-mail)

Why would the exemption of women from donating the half shekel exempt them from davening Musaf?

This concept should be very relevant to us as we, too, should be happy beyond description.

The Holocaust was the latest attempt of Amalek to destroy the special bond that we enjoy with God.

One can drink up to the Talmud’s criterion to confuse Mordechai and Haman-but not beyond.

“The voice is the voice of Yaakov, but the hands are the hands of Esav” gives great insight to Purim

Purim is the battleground of extremes, Amalek and Yisrael, with Zoroastrian Persia in between.

One should not give the money before Purim morning or after sunset.

More Articles from Rabbi Yaakov Klass and Rabbi Gershon Tannenbaum
Daf-Yomi-logo

An Auto Accident
‘All Agree That They Are Exempt’
(Kesubbos 35a)

Daf-Yomi-logo

The Threat Of Death
‘Sign or Else…’
(Kesubos 19a)

Tethered To The Mother
‘If She Is Fit, Her Daughter Is Also Fit’
(Kesubbos 13b)

A Joy And A Blessing
‘Rejoicing All Seven Days’
(Kesubbos 4b)

An Explosion In The Trench
‘With A Glowing Hot Knife’
(Yevamos 120b)

Life Before The Printed Word
‘A Revi’is Of Blood’
(Yevamos 114a-b)

Mitzvah Or Kinyan?
‘Both Shall Have Intention At The Same Time’
(Yevamos 102b)

A Kohen Of Choice
‘A Deaf-Mute, A Mentally Challenged Person, A Minor…’
(Yevamos 99b)

Printed from: http://www.jewishpress.com/judaism/halacha-hashkafa/daf-yomi-119/2014/03/06/

Scan this QR code to visit this page online: