M7 NAVEL - mvcitrus.org.aumvcitrus.org.au/.../07/M7-Navel-Progreess-and-Prospects-Greg-Chi… · No...

www.chislettnavel.com.au ©

M7 NAVEL

M7 Navel

Note: observations are made at Kenley, North Western Victoria, Australia

The Confidential Information contained in the Presentation is disclosed by one party to the other “As – Is”. Nothing contained in this presentation or any Confidential Information shall constitute any express right of access or implied warranty of any kind, including without limitation any warranty of merchantability, fitness for a particular purpose or non-infringement of any patent copyright or other third party intellectual property right.

The Chislett Property on the Murray River North West Victoria

Kenley Climatology ● Latitude: -34.86 Degrees. ● Long-term average annual rainfall 309mm. ●Temperature extremes -4oC Winter to 46oC Summer. ●Relative humidity is generally low.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann

Long Term Monthly Temperature Averages

Mean Max. (°C)

Mean Min. (°C)

Kenley Climatology

Heat Unit Zones

Chislett Property 1750 heat units

Daily Heat Units = [(maximum temperature + minimum temperature) ÷ 2] – 13

Above: Map showing annual heat unit zones in Australia

M7 is a very early maturing navel Mutation discovered in Autumn 2004 on a Navelina (clone 7.5) tree in the orchard of: Chislett Developments Pty Ltd Kenley, Victoria, Australia. Australian PBR granted: 2005/185 USA Plant Patent: US PP18,774P2

M7 Navel

Background

● Mutation first noticed when M7 had full colour and Navelina was light green on 02-May-2004

● Advanced colour around 4 weeks earlier than Navelina

● Very high brix 13.07 when Navelina was 9.94 on 18-May-2004

● Certified by Auscitrus to be free of any viruses in March 2006.

Note: The true to type Fukumoto variety is not available in Australia for Comparison with M7. Maturity timing of Fukumoto is very similar to Navelina in other

countries.

Outstanding Characteristics

● Earlist Colour ● Round fruit shape ● Early Internal Maturity ● Very high brix ● Extended harvest period ● No albedo breakdown ● Firmer rind than Navelina throughout harvesting period

Observations made at Kenley, Victoria, which is a late citrus growing area

Outstanding Characteristics

● Late hanging

● Vigorous and a distinctive foliage

● Medium to small and distinctive external navel

● Medium sized internal navel

● Early production, good yields and fruit size

Observations made at Kenley, Victoria, which is a mid to late growing area

Colour ● More even over tree and 4 weeks earlier than Navelina, gas colouring

possible early April (October NH).

● M7 on the 5-Apr-05 had better colour than Navelina on the 28-Apr-05.

● Individual fruit colour more uniform than Navelina.

● Intensity of colour similar to Navelina when fully developed.

gas colouriiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiinnnng

Fruit Shape

● Completely round fruit

Internal Quality ● Maturity 3 weeks earlier than Navelina

● Maintains acid levels of 0.7grams of citric acid per 100 ml of juice on 06-September-2005 (March NH)

● Exceptional eating quality due to higher brix (13º plus) and balanced acid

● High flavour intensity – much better eating quality than navelina

Internal Quality

● Potentially good juicing yields

● More advanced and intense flesh colour than Navelina

● Limonin levels to be determined and expected to be relatively low like Navelina

Note: Fukumoto shown is not the same variety existing in other countries

Internal Quality

California Standard - proposed for M7TM 105 - 170

California Standard = 16.5(Brix-4TA)

2011 Season (2 weeks late)

California Standard

M7 Navelina

15/04 86.5 65.3

29/04 116.5 94.7

(Kenley – late maturing area)

External Navel

● Medium to small -similar to Navelina

● Distinctive with slight lines radiating outwards from the navel.

Internal Navel

● Significantly smaller than Navelina 7.5

Photos taken August 25, 2006 at Dareton Research Station

Rind Quality

● No sign of albedo breakdown or creasing ever observed.

● Very strong and firmer than Navelina throughout harvest period.

Leaf Shape ● Length to width ratio

significantly lower and petiole wing more pronounced compared to other navels varieties.

● Leaf also has a distinctive undulation

Foliage

● More upright and open than Navelina allowing more light penetration and better colour development

● Less pruning needed

www.chislettnavel.com.au

Tree and Yields ● Very vigorous tree. Fast growing with

early cropping

● Good production – 15 tonne/ha from 3.5 year old trees (1000 trees/ha)

● Good fruit size, probably better than Navelina

Protectability ● M7 is easy to protect.

● Any fruit in the market before Navelina has to be M7.

● Round fruit shape with distinctive navel end marks.

● Easy to identify the variety in the field due to the distinctive leaf shape and foliage.

Harvest period ● Harvest possible 3 weeks earlier than Navelina

● Kenley (late maturity area) juice 40%, brix 10o, ratio 8.0:1 by early to mid April (October NH)

● Fruit - firm and good condition on tree for minimum 4 months (firmer than Navelina at all stages)

● Acid levels maintained above 0.75% for at least 4 months

● No fruit drop without 2,4D up to the end of August, obvious drop on Navelina

2005 2006 2007 2008 2009 2010 2011

Fig 1: Comparison of % juice in M7 and Navelina 7.5 across seven seasons.

M7Navelina

velina

2005 2006 2007 2008 2009 2010 2011

Fig 2: Comparison of º Brix in M7 and Navelina 7.5 across seven seasons

M7 Navelina

2005 2006 2007 2008 2009 2010 2011

Fig 3: % acid in juice from M7 and Navelina 7.5 across seven seasons

Navelina

2005 2006 2007 2008 2009 2010 2011

Fig 4: Brix:Acid ratio in juice from M7 and Navelina 7.5 sampled across seven seasons

Navelina

Fruit Maturity 2012 Variety Juice % Acid Brix Ratio

Attwood 53 1.18 8.64 7.34

Fisher 41 1.16 9.24 7.93

M7 (T/W) 46 1.22 10.00 8.22

M7 46 1.13 10.72 9.46

M7 (Nursery Trees) 49 1.08 10.12 9.41

Passin (Volk) 45 1.26 8.46 6.71

Washington 45 1.41 9.08 6.42

Picked 22/03/12 at Jamesville, slightly north of Mildura, Victoria, Australia

Fruit Maturity 2012 Variety Date Details Juice % Acid Brix Ratio

M7 - ChisDev 20/03/12 M12 block 41 1.07 9.98 9.33

M7 - ChisDev 20/03/12 M4 block 47 1.23 10.97 8.92

Navelina – ChisDev 20/03/12 M7 - NW 48 1.26 9.15 7.26

M7 - Cock 23/03/12 Trifoliata T/W 46 1.58 11.30 7.15

M7 - ChisDev 01/05/12 M12 block 39 0.90 11.58 12.87

Navelina – ChisDev 01/05/12 M4 block 34 1.18 10.44 8.85

Navelina – ChisDev 01/05/12 M7 - NW 48 0.90 9.98 11.04

M7 Packout 2010 M7 Packout Percentage off CVS Grader 11th May 2010 Count 1st Grade 2nd Grade 3rd Grade

32 1.00 0.40 0.00

36 3.70 0.10 0.00

40 6.10 1.30 0.40

48 17.00 3.60 0.50

56 27.30 5.50 0.70

72 18.20 3.50 0.50

88 4.60 1.20 0.10

100 1.70 0.30 0.10

125 0.40 0.00 0.00

138 0.00 0.00 0.00

TOTAL 80.00 15.90 2.30

PACKED 98.20%

JUICE OFF GRADER 1.80%

M7 Packout 2011

95 90 87 84 81 77 75 72 69 67 66

Harvested Kenley from 3.5 year old unpruned trees

Testimonial Hi Guys, Here are the results for the samples Greg sent in. The M7 was very impressive, I tested 6 fruit. With the other 2, I cut one up and left the other

whole and showed Bill, Perry, Ferdi and Gerome (Holman Fresh). All were very impressed, Gerome especially – he said he loved the variety and couldn’t believe the taste, colour, shape and rind quality. He said it needs a sexier name and thought Mara Mara could be a good one!

I’ll let you think about that one Greg Kind regards, Mara Milner

30th March 2011 - Kenley

8th April 2011 - Kenley

Photo Album 2011

5th April 2011 - Jamesville 5th April 2011 - M7 1.5 years - Jamesville

Navelina M7

M7 3 year old tree

M7 after gassing – picked 18th April 2010 M7 before gassing 20th April 2010

M7 5th May 2011

M7 - packing line 10th May 2011 MFC

M7 Melbourne Market 12th May 2011

M7 4 years after planting M7 4 years after planting

M7 2 years after planting M7 2 years after planting

56-60 61-65 66-70 71-75 76-80 81-85 86-90 91-95 96-100

Size (mm)

M7 Fruit Size Distribution on M12 5Yr Old Trees KENLEY 27/03/2012

M7 Fruit Size 2012

M7 Crop Control Treatments 2013

Block Hand Pruning Winter GA 2-4D to Close

Navel Corasil (Dichlorprop-P

25g/L)

M12 Carrizo

Autumn 2012 10 ppm 13/8/12

M3/4 Trifoliata

Autumn 2012 10 ppm 13/8/12

10 ppm 26/10/12

200ml/100L 1200L/Ha

Thinning & fruit sizing average fruitlet diameter 15mm

3 ½ Yr. O Carrizo

Winter 2012 10 ppm 13/8/12

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