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------------------------------------------------------------------------------------
Dosage No.of Survival Mutated Selected
trees rate tree strain
dosage total planted --------- --------- number
per day ¡ß day ¡á dosage No. % No. %
------------------------------------------------------------------------------------
Irradiation in 1963
6,000Ra ¡ß 1Db ¡á6,000R 20 18 90.0 5 27.8 Mori-ho-fuc No.8,NO.9,
No.11,No.12,No.13
3,000 ¡ß 1 ¡á3,000 29 29 100 4 13.8 Mori-ho-fu No.3,No.10,
No.14,No.18d
Irradiation in 1964
6,000 ¡ß 1 ¡á6,000 10 9 90.0 1 11.1 Mori-ho-fu No.7
3,000 ¡ß 2 ¡á6,000 14 10 71.4 1 10.0 Mori-ho-fu No.6
1,200 ¡ß 5 ¡á6,000 21 16 76.2 2 12.5 Mori-ho-fu No.5,No.19d
600 ¡ß10 ¡á6,000 18 15 83.3 0 0
------------------------------------------------------------------------------------
a R = Roentgen.
b D = Day.
c Mori-ho-fu;Refer to foot-note in Table 1.
d Spur-type mutation.
¡¡¾È¼Í¤Ë¤è¤Ã¤ÆÆÍÁ³ÊÑ°Û¤òµ¯¤³¤·¤¿ºÙ˦¤¬¡¢°ìËܤλޤˤޤÇÀ¸Ä¹¤·¤Æ¡¢ÊÑ°ÛÂΤȤ·¤Æ¸¡½Ð¤µ¤ì¤ë¤Þ¤Ç¤Ë¤Ï¤«¤Ê¤ê¤Î»þ´Ö¤¬É¬ÍפǤ¢¤ë¡£¤µ¤é¤Ë¤³¤Î¤è¤¦¤Ë¡¢¾È¼Í¤·¤¿¿¢ÊªÂΤǤ¹¤°¤ËÆÍÁ³ÊÑ°Û¤¬¸¡½Ð¤Ç¤¤ë¤¿¤á¤Ë¤Ï¡¢È¯¿§¤òÍÞ¤¨¤Æ¤¤¤¿Í¥À¤ÎÍÞÀ©°äÅÁ»Ò¤¬¥Ø¥Æ¥í¤Î¾õÂ֤Ǥ¢¤ë¤³¤È¤Ê¤É¤¬É¬ÍפǤ¢¤ë¤¬¡¢¥ê¥ó¥´¤Î²ÌÈ鿧¤Î¾ì¹ç¤ÏÆüËܤ«¤é±ó¤¯Î¥¤ì¤¿²¤½£¤Î¥ª¡¼¥¹¥È¥ê¥¢¤Ç¤âƱÍͤËÇ»¤¤¹È¿§¤¬½Ð¤ë¤è¤¦¤Ë¤Ê¤Ã¤¿²þÁ±Î㤬¤¢¤ë¤Ê¤É¡¢¤Û¤«¤Ë¤âÎ㤬¤¢¤ë¡£É½2¤Ë¤Ï¤½¤Î¤Û¤«¤Î²Ì¼ùÎà¤Ë¤Ä¤¤¤Æ¤â¤È¤ê¤Þ¤È¤á¤Æ¤¤¤ë¤¬¡¢¿§¤Î²þÁ±Îã¤È¤·¤Æ¤ÏCitrus(´»µÌÎà)¤Ç¤Î¹È¿§¤òÁý¤·¤¿ÆÍÁ³ÊÑ°Û¤ÎÁªÈ´Îã(¥°¥ì¡¼¥×¥Õ¥ë¡¼¥Ä¤Î¡Ö¥ë¥Ó¡¼¡×)¤Ê¤É¤â¤¢¤ë¡£
ɽ2¡¡²ÌʪÎà¤Ç¤ÎÆÍÁ³ÊÑ°Û¤ÈÉʼï°éÀ®¤Ø¤Î±þÍÑCultivars developed through induced mutations. ¡Ê¸¶ÏÀʸ2¤è¤ê°úÍÑ¡£¡¡Reproduced from Somaclonal Variation and Induced Mutations in Crop Improvement pp. 401-419(1998), Tab.2(p.405), T. Sanada and E. Amano, Induced Mutation in Fruit Trees; Copyright(1998), with permission from Kluwer Academic Publishers and authors.¡Ë
-----------------------------------------------------------------------------------------
No.of Mutagens
-----------------------------
Fruit released ¦Ã X-ray Thermal Chemical Mutant character
cultivars2 neutrons mutagens
-----------------------------------------------------------------------------------------
Apple 10 8 1 0 1 Compact tree,early-maturing,
red colour fruit skin,russet-free
fruit skin,variegated leaf
Pear 3 3 0 0 0 Disease resistance
Peach 3 3 0 0 0 Early-maturing
Sweet cherry 5+(3)3 2 3 0 0 Compact tree,self-compatible
Sour cherry 4 3 1 0 0 Compact tree,fruit set
Plum 1 1 0 0 0 Early-flowering
Apricot 1 0 0 1 0 Early-maturing
Bramble 1 0 0 0 1 Disease resistance
Currant 2 1 1 0 0 Early-maturing,erect growth
Grape 1 1 0 0 0 -
Pomegranate 2 2 0 0 0 -
Fig 3 1 2 0 0 Mosaic leaf
Sea buckthorn 14 0.5 0 0 0.5 -
Citrus 5 3 0 2 0 Seedless,red colour of fruit
and juice
Olive 1 1 0 0 0 Short branch
Loquat 1 1 0 0 0 -
-----------------------------------------------------------------------------------------
Total 44+(3)3 30.5 7 3 2.5
-----------------------------------------------------------------------------------------
1The information is based on Mutation Breeding Newsletter and Mutation Breeding Review,
published by IAEA.
2Apple: Belrene,Blackjoin BA 2 520,Courtagold,Coutavel,Golden Haidegg,Lysgolden,
McIntosh 8F-2-32,Mori-Hou-Fu 3A,Shamrock,Dover.
Pear: Gold Nijisseiki.The other two are under processing for registration.
Peach: Magnif 135,Plovdiv 6*,Fukuekubo.
Sweet cherry: Burlat C1,Compact Lambert,Compact Stella 35B11,Ferrovia spur,
Nero ¶ C1,(Lapins)3,(Stella)3,(Sunburst)3.
Sour cherry: Karlik Samorodka,Polukarlik Orlovskoi,Polukarlik Turgenevki,Plodorodnaya.
Plum: Spurdente-Ferco. Apricot: Early Blenheim. Bramble: Kolokol'chik.
Currant: Westra,Burga.Grape: Fikreti**.Pomegranate: Khyrba**,Karabakh**.
Fig: Golden King,Golden Princess,Bol**.Sea buckthorn: Zyrianka4.
Citrus: Star Ruby,Rio Red,Hongju 418,Hongju 420,Xue Gan 9-12-1.
Olive: Briscola.Loquat: Shiro-mogi**(*,pollen irradiation;**,seed irradiation)
3Three cultivars were bred by cross-breeding using mutants as parent.
4Seed was irrdiated with ¦Ã-rays and seedlings were treated with chemical mutagen.
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Gamma Field Symposia No. 21:93-103
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Induced Mutation in Fruit Trees.
T. Sanada and E. Amano
National Inst. of Fruit Tree Science, and Fukui Prefectural University
Somaclonal Variation and Induced Mutations in Crop Improvement pp. 401-419 (1998), Kluwer Academic Publishers,
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