✦ LIBER ✦

Promotion of flower formation by atrazine and diuron in seedlings ofAsparagus

✍ Scribed by T. Abe; T. Kameya

Publisher: Springer-Verlag
Year: 1986
Tongue: English
Weight: 325 KB
Volume: 169
Category: Article
ISSN: 0032-0935
DOI: 10.1007/bf00392327

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✦ Synopsis

Flower formation in 25-d-old seedling of Asparagus officinalis L was increased by soaking the seeds for 12 d in solutions of atrazine (2-chloro-4-ethylamino-6-isopropylamino-1,3,5-triazine) or diuron (3-(3,4-dichlorophenyl)-1,1-dimethylurea), two herbicides known to affect electron flow of photosystem II, from approx. 4% in controls to 37% in treatments with 400 t-tM of atrazine or about 100 gM diuron. Both herbicides inhibited plant growth, but treatment of seeds with other growth inhibitors (absicic acid, (2-chloroethyl)trimethylammonium chloride, polyethylene glycol) did not affect flower formation although inhibiting seed germination and plant growth. The increase of flower formation by the two herbicides permits identification of the sex of Asparagus plants at an early developmental stage.

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