The interaction of the cyclic base 1,4,10,13-tetraoxa-7,16-diazacyclooctadecae (TODACOD) w i t h different x-electron acceptors have been studied spectrophotometrically in CHCl3. These m k z t r o n acceptors are 1 -chloro-2,4,6-trinitrobenzene (picryl chloride), 7,7', 8,8'-tetracyanoquinone (TCNQ) and tetrachloro-p-benzoquinone (chloranil). The results indicate the formation of 1 :4 charge transfer complexes with the general structures [(TODACOD)(Accept)s]. The charge transfer absorptions as well as the infixed spectra of these complexes are obtained.115

A field experiment was carried out to study the effect of spraying ascorbic and citric acids on canola grown on a sandy soil in Ismailia Governorate, Egypt, the design was a randomized complete block, factorial. Factor 1: ascorbic acid spray at 4 rates. Factor 2 : Citric acid spray at 4 rates . Rates in each were 0, 144, 192 and 240 g acid ha -1 of spray. Thus there were 16 different combinations. Foliar spray was applied three times: 40, 60 and 80 days from sowing, each of 1000 L ha -1 . Yields of seeds, pods, shells, oil and oil percentage were increased with increasing the rate of acid addition. Seed yield, No. seeds pod -1 , pod yield and pod shelling were increased with addition rates of 240 g solution ascorbic ha -1 without citric acid. Shell yield and 1000 seed weight were increased with spraying 240 g ha -1 from both of ascorbic and citric acid.