Not only was calcium EDTA ineffective but it caused injury to both 

 leaves and fruits. Furthermore, experiments with calcium chloride 

 in other areas and in a commercial orchard suggest that it may be 

 effective in increasing the calcium level. 



Another experiment was conducted on a block of mature Baldwin 

 trees, in which some trees received 6 lbs per tree of calcium 

 nitrate fertilizer, others received lime water sprays, and others 

 received a combination of the 2 treatments. As with Mcintosh, cal- 

 cium nitrate fertilizer did not raise calcium, and lime-water sprays 

 did. A combination of the fertilizer and spray treatments was no 

 better than the sprays alone. 



It might appear that lime-water sprays are a good way to raise 

 the calcium level of apples. However, it leaves a residue that is 

 extremely persistent, and therefore, cannot be recommended commer- 

 cially. These experiments add to what has been found before: rais- 

 ing the calcium level of apples on the tree is a very difficult 

 task. We still have no solution to this problem. 



In rec 

 evolved -- 



year, 

 dips. 



of 4% 

 We fou 

 raised 

 ety. 

 to 3, 

 from 4 

 they s 

 f i cant 

 tory. 

 improv 

 exists 

 crease 

 t i n , 

 whi 1 e 

 less 



we CO 



We d 



c a 1 c i 

 nd th 



calc 

 Furth 

 2, or 



to 1 

 how t 



ly. 



The 

 e sto 

 . Fu 



aver 

 fruit 

 fruit 

 f the 



ent yea 

 the use 



nducted 



ipped M 



urn chlo 

 at both 

 ium lev 

 ermore, 



}% wit 

 % wit ho 

 hat a p 

 Neverth 

 average 

 rage li 

 rthermo 

 aged 15 

 s from 

 s from 



compos 



rs , an 

 of po 

 a ser 



cintos 



ride o 

 mater 

 els in 

 with 

 hout c 

 ut eff 

 osthar 

 el ess , 

 i ncre 

 fe of 

 re , th 

 % rega 

 some t 

 other 

 i t i n 



other 

 sthar 



ies 

 h, Co 

 r 2% 

 i a 1 s , 



f rui 

 Baldw 

 ausi n 

 ect . 

 vest 



the 

 ase i 

 the a 

 e res 

 r d 1 e s 

 rees 

 trees 

 of th 



appr 

 vest 

 f exp 

 r 1 1 a n 

 EDTA 



with 

 t fie 

 in we 

 gad 



Thes 

 dip c 

 resu 1 

 n cal 

 pples 

 ponse 

 s of 

 absor 



abso 

 e d i f) 



oach to 

 dips in 

 eriment 

 d , and 

 with an 



or wit 

 sh abou 



also r 

 if feren 

 e resul 

 an r a i s 

 ts were 

 cium wa 



if a s 



was no 

 variety 

 bed muc 

 rbed mu 



s 1 u t i 



the 

 cal 



s wi 

 Bald 

 d wi 

 hout 

 t 15 

 educ 

 ce , 

 ts a 

 e th 



not 

 s no 

 erio 

 t un 



and 

 h mo 

 ch 1 

 on . 



cal c 

 cium 



th po 



win a 



thout 



a we 

 %, re 

 ed th 

 and V 

 re en 

 e cal 



comp 

 t eno 

 us ca 

 iform 



rega 

 re ca 

 ess t 



ium probl 

 solutions 

 stharvest 

 pples in 



a wettin 

 tting age 

 gardl ess 

 e calcium 

 a r i e d cal 

 cou raging 

 cium leve 

 letely sa 

 ugh to ma 

 Icium def 

 . While 

 rdless of 

 Icium tha 

 hat this. 



em has 

 Last 



cal cium 



solutions 



g agent. 



nt , 



of vari- 



chloride, 

 cium EDTA 

 , for 

 1 s i g n i - 

 ti sfac- 

 rkedly 

 i ciency 

 the in- 



sol u- 

 t this, 



regard- 



dip p i 



life. 



treat 



use. 



throu 



with 



howev 



in th 



of pr 



posth 



We fe 

 ng of 

 How 

 ments 

 Cons 

 ghout 

 posth 

 er , t 

 e ore 

 obi em 

 arves 



el t 

 app 



ever 

 bef 



ider 

 the 



arve 



here 



hard 



s . 



t ca 



hat t 

 Ies i 

 , the 

 ore w 

 able 



worl 

 St ca 



rema 

 , whe 

 We ar 

 1 cium 



here 

 n cal 

 re is 

 e can 

 resea 

 d , an 

 1 cium 

 ins t 

 re a 

 e con 

 prob 



IS cons 



cium so 



much t 



comfor 



r c h is 



d it is 



dips w 



he prob 



cal cium 



t i n u i n g 



lems wi 



iderabl 

 1 u t i n s 

 hat we 

 tably r 

 being c 



hoped 



ill rap 



lem of 



d e f i c i 



to pur 



th exte 



e promi 

 to imp 

 must ye 

 ecommen 

 onducte 

 that an 

 idly be 

 raising 

 ency pr 

 sue bot 

 n s i V e s 



se for 

 rove t 

 t 1 ear 

 d them 

 d on t 

 swers 

 found 

 the c 

 oduces 

 h the 

 e r i e s 



posth 

 heir s 

 n abou 



for c 



his p r 



to the 



Mea 



al cium 



a sep 

 prehar 

 of exp 



arvest 

 torage 

 t these 

 ommercial 

 obi em 



probl ems 

 nwhi 1 e , 



1 evel 

 arate set 

 vest and 

 eriments . 



*************** 



