The Leanri mandarin was bred through an Fruit...
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Fruit characteristics • Leanri has a thin rind and peels easily. • In South Africa the fruit ripens from mid- May to mid-June in hot production areas. In cooler/cold areas it should ripen from mid-June to mid-July. • The fruit is flat to round in shape. • The fruit has a high juice content with a rich flavour and the rind develops a deep orange colour at maturity. Tree characteristics • The tree has an upright murcott type growth habit with limbs spreading during cropping. It is also vigourous but without thorns. Rootstocks • Rootstocks used to date are Carrizo Citrange and Minneola x Trifoliate. Other possible rootstocks are Troyer Citrange, C35, X639 and Sunki Benecke. Crop Load • The variety is expected to bear moderately but will require crop manipulation techniques. Production should be equivalent to that of Nadorcott. The variety could potentially be prone to alternate bearing but can be managed through crop manipulation. Current status of the variety • Classified as an Experimental variety. To date the variety has only been tested (and borne fruit) in trial blocks at Esselen Nursery and Du Roi Nursery (both hot production areas in the Northern parts of South Africa). Larger experimental blocks have been established in Letsitele, Limpopo and Burgersfort, Limpopo. • Ongoing trials to test rootstocks, fruit set and sensitivity to cross-pollination are in place. Degreening, shipping and storage trials will also be conducted in future. • The plant material has been ‘cleaned’ of all known diseases and has been pre- immunized with a cross protecting mild strain of Tristeza virus. This material has been delivered to the Citrus Foundation Block in South Africa and also placed into trial blocks, where tests for True-To- Typeness are still to be carried out. This process will be completed in May 2016. • The Leanri mandarin was bred through an induced mutation of Clementine x Murcott selection. • The variety is an easy peeling, firm fruited, mid season maturing mandarin with fantastic flavour and high juice content, ripening 3 - 4 weeks before Nadorcott. • The Leanri is protected by the Plant Breeders Right Act 15 of 1976 (amended) of South Africa which prevents illegal propagation (PBR Application No. PT7037). • The Leanri will be marketed as a mid- season maturing low seeded mandarin. Origin and use • The variety is an induced mutation of a Clementine x Murcott selection made at Esselen Nursery in Malelane, Mpumalanga, South Africa.
Transcript of The Leanri mandarin was bred through an Fruit...
Fruit characteristics • Leanri has a thin rind and peels easily.
• In South Africa the fruit ripens from mid-May to mid-June in hot production areas. In cooler/cold areas it should ripen from mid-June to mid-July.
• The fruit is flat to round in shape.
• The fruit has a high juice content with a rich flavour and the rind develops a deep orange colour at maturity.
Tree characteristics• The tree has an upright murcott type
growth habit with limbs spreading during cropping. It is also vigourous but without thorns.
Rootstocks• Rootstocks used to date are Carrizo
Citrange and Minneola x Trifoliate. Other possible rootstocks are Troyer Citrange, C35, X639 and Sunki Benecke.
Crop Load• The variety is expected to bear moderately
but will require crop manipulation techniques. Production should be equivalent to that of Nadorcott. The variety could potentially be prone to alternate bearing but can be managed through crop manipulation.
Current status of the variety• Classified as an Experimental variety. To
date the variety has only been tested (and borne fruit) in trial blocks at Esselen Nursery and Du Roi Nursery (both hot production areas in the Northern parts of South Africa). Larger experimental blocks have been established in Letsitele, Limpopo and Burgersfort, Limpopo.
• Ongoing trials to test rootstocks, fruit set and sensitivity to cross-pollination are in place. Degreening, shipping and storage trials will also be conducted in future.
• The plant material has been ‘cleaned’ of all known diseases and has been pre-immunized with a cross protecting mild strain of Tristeza virus. This material has been delivered to the Citrus Foundation Block in South Africa and also placed into trial blocks, where tests for True-To-Typeness are still to be carried out. This process will be completed in May 2016.
• The Leanri mandarin was bred through an induced mutation of Clementine x Murcott selection.
• The variety is an easy peeling, firm fruited, mid season maturing mandarin with fantastic flavour and high juice content, ripening 3 - 4 weeks before Nadorcott.
• The Leanri is protected by the Plant Breeders Right Act 15 of 1976 (amended) of South Africa which prevents illegal propagation (PBR Application No. PT7037).
• The Leanri will be marketed as a mid-season maturing low seeded mandarin.
Origin and use• The variety is an induced mutation of a
Clementine x Murcott selection made at Esselen Nursery in Malelane, Mpumalanga, South Africa.
Citrogold (Pty) Ltd. PO Box 3234, Matieland 7602, Stellenbosch, South AfricaTel: +27 21 882 8277 Fax: +27 21 882 8322 E-mail: [email protected] Website: www.citrogold.co.za Skype: clemengold1
10mm
Leanri mandarin: Technical information
Tree characteristics Trees have an initial upright with later spreading growth habit. Vigorous but without thorns - similar to Murcotts.
Fruit size (expected peak)
Hot areas: 1X to 1XX (68mm to 78 mm)Cool/Cold areas: 1 to 1X (64mm to 72 mm)
Fruit shape Flat to round
External appearance Fruit is firm with a smooth thin rind which develops a deep orange rind colour at maturity.
Internal appearance Even and large segments developing a deep orange flesh colour at maturity. Open core.
Peelability Easy peeling.
Seed Average of 2 seeds per fruit in variety blocks. Seed content expected to be lower in solid blocks.
Flavour Rich flavour especially later in the season with moderate acid levels and high sugars. Similar aroma and flavour to Nadorcott.
Hybrid Induced mutation of Clementine x Murcott
Origin Esselen Nursery, Malelane, Mpumalanga, South Africa
Ownership Comoset (Pty) Ltd
Selected Selection made in 2008
PBR Application PT7037
Status Experimental
Internal quality tests performed in South Africa on trees top-worked at Esselen Nursery (Malelane), Glen Ora Farm (Burgersfort) and Du Roi Nursery (Letsitele) during the 2013 and 2014 seasons.
Test date Juice % Brix° Acid % Brix / Acid Ratio
Esselen Nursery (Malelane, Mpumalanga, South Africa)
17 April 2013 64 % 11.4 1.04 11.0
15 May 2013 62 % 11.8 1.05 11.2
28 May 2013 63 % 12.2 1.16 10.5
11 June 2013 61 % 12.5 1.06 11.8
Glen Ora Farm (Burgersfort, Limpopo, South Africa)
22 April 2013 55 % 10.3 0.95 10.8
24 May 2013 63 % 12.5 0.81 15.4
Du Roi Nursery (Letsitele, Limpopo, South Africa)
8 April 2014 57 % 9.9 0.92 10.7
24 April 2014 54 % 11.3 0.82 13.8
3 May 2014 65 % 11.6 0.79 13.2
Copyright© 2014 by Citrogold (Pty) Ltd
Optimum ripening period
Hot areas: mid-May to mid-JuneCool/cold areas: expected to be mid-June to mid-JulyFruit degreens well and earlier harvesting is possible.
Possible disorders Fruit is firm but is prone to creasing when harvested later than normal picking period. Low cropping could be a problem due to reduced seed content. Crop manipulation may be required. Alternate bearing can lead to excessively large fruit in the off-year.Could be prone to Alternaria brown spot infection in humid climates but none noted so far.
Rootstocks used in evaluation
Carrizo Citrange and Minneola x Trifoliate.
