Categorie: Plantenzaden

ANTIRRHINUM majus TWINNY WHITE

Twinny is a new double flowered Antirrhinum. It is the first double flowered F1 hybrid dwarf Antirrhinum series on the market. Twinny is recommended for 10-12 cm (4-5 in.) pots and large containers. Its tolerance to hot and wet weather conditions results into an exceptional garden performance. Twinny Peach is an All America Selections Winner.

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Artikelnummer: 04770-1 Categorie√ęn: , ,

Antirrhinum F1 double flowered

Family:                   Scrophulariaceae
Use:                    Outdoor containers, pot and pack, suitable  for borders and beds.
Plant type:          Annual
Height in pot:      10-15 cm (4-6  in.)
Garden height: 25-30 cm (10-12 in.)
Seed count:
6,200-6,500 seeds/gram (176,000-184,000 seeds/oz) Seed  count  varies  by variety  and seed lot.
Seed form:
Raw.

Germination:
Media  pH 5.5  to 5.8
High pH (>6.2) may cause interveinal leaf chlorosis due to iron deficiency.
EC 0.5-0.75
Ammonium based fertilizers  are  not recommended. Use calcium based fertilizers  instead.

Stage 1: radicle emergence
Temperature: 18-22¬ļC (64-72¬ļF)
Radicle  emerge will occur  in 3-4  days.  Keep  media wet. Do not cover.  Seeds need light for a uniform germ. Antirrhinum is very  susceptible to  high  salt  levels  in  all stages.

Stage 2: expanding stem and cotyledons
Keep media moist,¬† temperature can¬† be lowered to 18¬ļC (64¬ļF).¬† Reduce¬† moisture levels¬† to¬† obtain optimum root penetration and to prevent fungal diseases. Prevent¬† wet foliage after¬† nightfall. A broad spectrum fungicide may be applied to prevent damping off. Under low light con- ditions¬†¬† supplementary¬† lighting is¬† advised to¬† promote compact strong seedlings. Extending day¬† length to¬† 14 hours, 4.000-10.000¬† lux (400-1000 foot¬† candles) will promote early¬† flowering.

Stage 3: development of first true  leaves
Temperature days¬† 18¬ļC (64¬ļF)¬†¬† EC 0.5-0.75
Allow media to dry between watering. Wet, cold and low light conditions may  result  in tip abortion.

Stage 4: finishing/holding stage
Plugs are  ready for transplant or shipping.
Temperature can¬† be dropped to 16-18¬ļC (60-64¬ļF); lo- wer temperatures and wet conditions may result¬† in poor growth and leaf¬† chlorosis. Allow media to dry between watering but¬† avoid¬† wilting.¬† EC 0.75. Do not¬† exceed le- vels of over 1.0¬† to prevent root¬† problems.

Growing on:
After 5-6  weeks  plants can  be  transplanted. It will take 5-6  weeks  to finish in the  pack.  Allow an  extra  week  for 4-inch pots.
Media: a well-drained, porous media is best  to prevent over watering. pH 5.5-5.8. Never  over 6.2 EC. 0.75-1.50
Moisture: allow  media to dry between watering, do not allow  plants to  wilt  severely, this  will result   in  yellow leaves and serious setback in growth.
Light: Optimum light  level  is 18.000-22.000 lux (1800 -2200 foot  candles). Long days  (>14 hrs) will promote early  flowering.

Growth regulators:
Antirrhinum responds to:  Daminozide, (Dazide, B-nine) Chlormequat (Cycocel) and paclobutrazol (Bonzi).

Pests:
Spider  mites,  Thrips, Aphids  and Whitefly
Control: common insecticides can  be used, check  for labelled products.

Diseases:
Botrytis blight,  Rhizoctonia, Rust, Pythium,  Powdery  and
Downy mildew.
Control: Use labelled fungicides to prevent and/or cure problems. Avoid cool and wet conditions.

Schedule:
Sowing          Potting           Flowering wk 3              wk 9              wk 16-17 wk 6              wk 11            wk 18-19
Wk 9             wk 14            wk 20-21

General:
Antirrhinum has¬† a very¬† sensitive root¬† system. Prevent over¬† watering and cold¬† media (< 15¬ļC/58¬ļF). Do¬† not allow¬† plants to¬† wilt severely. Cold¬† and wet¬† conditions will result¬† in slow development combined with root¬† pro- blems and slow¬† uptake of nutrients, followed by chlo- rosis of the¬† leaves. The use¬† of ammonium-based¬† fertili- zers may result¬† in thin,¬† elon-gated roots¬† which are¬† more susceptible to soil born¬† fungi.¬† Avoid overhead watering; allow¬† foliage to¬† dry during daytime to¬† prevent disease problems.

“Information copied from the breeder.
Muller will not accept any liability for failure and/or damage as a consequence of incorrect and/or inexpert cultivation by or on behalf of the Buyer.‚ÄĚ

 

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