Raffinose inStomoxys calcitrans Linn.(diptera, cyclorrhaphpa: Muscidae)

732

Specialia

t i o n a t 25~ a n d 30~ b u t also p r e v e n t s t h e d o m a n c y c a u s e d b y h i g h t e m p e r a t u r e s . T h u s , for i n s t a n c e , a t a t e m p e r a t u r e of 35 ~ in c o n t r o l t h e seeds d i d n o t i n d i c a t e a n y g e r m i n a t i o n a t all. H o w e v e r , in p r e s e n c e of v a r i o u s c o n c e n t r a t i o n s of ethrel, e v e n a t 35~ as m u c h as 4 0 %

40 Control:no germination

35~

30

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24

36

48

72h

"~ 20

0

,~

90 o

36

24 oContro I

•

72h

1 1 1

m

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Botany Department, University o/Jodhpur, New-Campus, Jodhpur (India), 20 October 7972.

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Zusammen/assung. E t h r e l v e r h i n d e r t d e n R u h e z u s t a n d y o n