الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
This invastiaticn wan curried out on Balady orange, Bc1adr mandarin, Marsh grapefruit and &lady lime over a period of two successive years duxng 1978 and 1979 sasons in the Faculty ol’ L:riou1ture at ssiut University.
This ixpenment vies arranGed in a split plot desin with three replicutions to study the chances in some phrsica1 and chernioB3. characteristics in fruits of Ealady orange, Buia&y mandarin, Marsh grapcfruit and B9i’adJ lime during ripening as influenoed by some growth regulators
SQvel different ripening treatments were used as
f11owst
1. So&iing in distilled water for ton minutes.
2. Eth:el solution 500 p.p.rn. for a period of ben minutes.
3 Ethrel solution 1000 p.p.m. for a psriod of ten minutes.
4. 2,4D. soll2tlon 50 p.pun. for a poraod of ten mznates.
5. 2,4.D. solution 100 p.p.rn. for period of toti minutes.
6. 2,4,5—P. s1ution 50 p.p.xn. for a period of ten minutes.
7. &posurd to ccetyleno sue for a period of 36 hours.