Enhancement of lettuce seed germination by some urea derivatives

✍ Scribed by N. P. Kefford; J. A. Zwar; M. I. Bruce

• Book ID: 104752480
• Publisher: Springer-Verlag
• Year: 1965
• Tongue: English
• Weight: 225 KB
• Volume: 67
• Category: Article
• ISSN: 0032-0935
• DOI: 10.1007/bf00391296

✦ Synopsis

For some years thiourea has been known as a stimulant of the germination of photosensitive lettuce seed (T~o~soN and KosAa 1938). Amongst urea derivatives, it has been considered to be the only compound capable of this stimulation; other ureas or thioureas being inactive or inhibitory (T~o~eso~ and KOSAR 1939; MAYER 1956). This apparent requirement for thionrea has been the basis for the extensive use of this compound as a potential key to the mechanisms of the physiological and biochemical processes involved in the dormancy and germination of lettuce seed (see for example