Tagetes Erecta - Marvel II: presentation & comparison (EN)

African Marigold - Marvel II Presentation & comparison

Marvel II - presentation • Intermediate type African Marigold with improved branching, earliness, flower quality and uniformity across the series.

• Simply everything you like about Taishan, in a larger size.

YELLOW GOLD ORANGE

MIXED

• Good for landscape, large container, garden and patio.

Marvel II - Presentation IMPROVED BRANCHING

MOST UNIFORM SERIES

Marvel II is…

IMPROV ED EARLINE SS

COLOR STRONG E R! D E E P E R! BRIGHTE R!

SUPERIOR FLOWE R QUALITY OVER ORIGINAL MARVEL AND COMPETITION

Marvel II - Comparison

Different height.

Tallest Yellow, Shortest Orange

MARVEL II MARVEL

INCA II

VENHUIZEN (NL), WK24 2019 - SOWN WK10 / TP WK13

MOST

UNIFO SERIE RM S

Slightly height different, Yellow is quite shorter than others.

MORE BRANCH ING

COLOR !

STRONGER DEEPER! BRIGHTER!

MARVEL II Larger flow er Improved fl ower form More double than INCA II

BETTER FLOWER QUALIT Y

YELLOW

GOLD

ORANGE

YELLOW

GOLD

ORANGE

Tall

Deeper, Brighter Yellow

Tall

Deeper, Brighter Gold

Poor flower form

VENHUIZEN (NL), WK24 2019, SOWN WK10 / TP WK13

Deeper, Brighter Orange

Poor flower form

Marvel II - Comparison Uniform across the series

MARVEL

Earlier to flower MARVEL

MARVEL II

Californian Spring Trials 2020, SANTA PAULA (USA) WK12 2020 - SOWN WK2 / TP WK6

MARVEL II

Marvel II – Field Performance MARVEL II YELLOW

stems!

Stronger damage d rain Withstan r hot and e well und nditions humid co

SODSAI LANNA (TH), WK29 2020 SOWN WK18 / TPF WK21

INCA II YELLOW

African Marigold – Marvel II Daylength response

Marvel II – Trials conditions

Plug: Sow WK21 Tray size 288 cells

Container: TP WK24 1L - 13 cm pot

2 times PGR: Daminozide 5000 ppm

No PGR

Natural long day ~15 hours (Elburn)

DL Treatments: 10, 12, 13, 14, 16 h, NI = night interruption

TP to Finish: 8-11 weeks Total crop time: 11-14 weeks Environment conditions: ADT = 25⁰C DLI = 10.6 mol.m-2.d-2

Marvel II – Daylength response DL 10

12

13

14

16

NI

DT50 51

55

64

64

69

67

ALL COLORS RESPOND SIMILARLY! Yellow

DT50 54

55

66

71

74

76

Gold

DT50 53

54

63

69

73

Days to 50 % flower d at e increase a bout 2-3 w eeks from 10 h t o 16 h DL

73

Facult at i SD pl ve a nt Orange

DL = Day Length treatments DT50 = Days to 50% flowering

As wit ha plant h ll African Ma eight i r ncreas igolds es as D increa L ses

Critica l DL ~ 13 h is .

Marvel II – Daylength response Comparison with Marvel DL 10 Marvel II DT50 51

55

Marvel DT50 52

56

12

13

10

12

13

14

14

16

NI

64

64

69

67

54

55

66

71

73

77

80

81

54

56

69

77

Yellow

DL = Day Length treatments DT50 = Days to 50% flowering

Gold Under DL 12 h o r shorter, no signifcant d iferent between two se ries

16

74

79

NI

10

12

13

14

76

53

54

63

69

79

48

54

66

78

Orange 12 h, Under DL longer than Marvel II is signifcantly earlier than Marvel

16

73

77

NI

73

79

African Marigold – Marvel II FORCING PRODUCTION LIMITED INDUCTIVE PHOTOPERIOD RESPONSE (LIP)

Marvel II – Trials conditions Plug: Sow WK21 Tray size 288 cells 2 times PGR: Daminozide 5000 ppm DL Treatments: 10 SD = 10 days of 10 h SD (at 1.5 Week after Sowing) 0 SD = Natural long day (~15 hours Elburn)

Container: TP WK24 Quart size No PGR Natural long day ~15 hours (Elburn)

TP to Finish: 8-10 weeks Total crop time: 11-13 weeks Environment conditions: ADT = 25⁰C DLI = 10.6 mol.m-2.d-2

Marvel II – LIP response 10 SD

0 SD

10 SD

0 SD

5 Weeks after Transplant (WK29)

6 Weeks after Transplant (WK30)

Flowering time: 10 h SD significantly speeded up flower timing

Average about 2 weeks earlier to flower

Marvel II – Height & Flowering Day with 10h SD Plant height: 10 h SD show s ~ 10 to 15 cm shorter than 0 SD treatment for all varieties, except Marve l II Yellow*

Flowering day: ~ 2 weeks 10 h SD shows r than 0 SD earlier to flowe ll varieties, treatment for a Yellow* except Marvel II

* Marvel II Yellow, afected by bud abortion, needs more than 10 h SD.

Marvel II – Trials Conclusions • Possible to sell African Marigold flowering earlier in Long Day conditions, by using limited Short Day during plug stage.

• 10 hours SD made flowering about 2 weeks earlier than 0 SD when forced under LD for all varieties, except Marvel II Yellow, that may require longer period of SD induction.

• Recommend using 128 size plug trays instead of 288, to allow total 4 weeks of plug time.

• Recommend 14 days of SD treatment to avoid incomplete flower induction.

Marvel II – Best practices pH range: 6.2 to 6.5

tly likes sligh ld o ig r a M . il medium o s H p h hig se .5 will cau 5 w lo e b pH . * toxicity * n M r o Fe*

PGR: Daminozide (Alar/ B9 ) 1500-5000ppm sprays Paclobutrazol (Bonzi) 10-30ppm sprays

Marvel II responds to normal African Marigold culture practices

Respon d s to s a me P rates th at use o GRs & n African Marigo other ld Depend ing upo series. desired n region & height.

* Fe toxicity: Symptoms are leaf discoloration (bronzing) and a stunted root system. ** Mn toxicity: Frequently causes chlorosis (pale or yellow color), most severe on younger leaves, due to an induced iron defciency.