NEW INTRODUCTIONS FROM MAS.PES, AN ITALIAN FRUIT TREE BREEDING PROGRAM: 'DULCIVA' NECTARINE AND 'PULCHRA' PEACH

Wax tree has been cultivated to get lacquer, a valuable source of material that is necessary for many industries and handicrafts. Evaluating not only phenotype but also genotype is essential in order to increase the efficiency of new breeding program. In this study, the genetic relationship at the molecular level of 90 wax trees collected in three regions, i.e., Tam Nong, Thanh Son (Phu Tho) and Chiem Hoa (Tuyen Quang), was analyzed by SSR and ScoT markers. The results revealed a significant diversity among the individuals, with similarity coefficient from 0.41 to 0.98. The sample group collected in Chiem Hoa was significantly different from that in Tam Nong. Most of samples which had a high level of genetic similarity, from 0.95 to 0.98, were pairs of samples at the same geographical origin. The high similarity degree of these samples is likely due to the practice of selecting seeds from high-yield wax tree to be kept for seeds. These results provide the necessary information for new wax tree breeding program.

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A TREE-BREEDING PROGRAM FOR CANADA

The Forestry Chronicle ◽

10.5558/tfc27164-2 ◽

1951 ◽

Vol 27 (2) ◽

pp. 164-170 ◽

Cited By ~ 1

Author(s):

I. C. M. Place

Keyword(s):

Tree Breeding ◽

Breeding Program ◽

Tree Breeding Program

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Using Norway spruce clones in Swedish forestry: Swedish forest conditions, tree breeding program and experiences with clones in field trials

Scandinavian Journal of Forest Research ◽

10.1080/02827581.2018.1562566 ◽

2019 ◽

Vol 34 (5) ◽

pp. 342-351 ◽

Cited By ~ 4

Author(s):

Ola Rosvall

Keyword(s):

Norway Spruce ◽

Tree Breeding ◽

Field Trials ◽

Breeding Program ◽

Tree Breeding Program ◽

Forest Conditions

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Markers in Fruit Tree Breeding: Improvement of Peach

Biotechnology in Agriculture and Forestry - Molecular Marker Systems in Plant Breeding and Crop Improvement ◽

10.1007/3-540-26538-4_17 ◽

2005 ◽

pp. 279-302

Author(s):

E. Dirlewanger ◽

P. Arús

Keyword(s):

Tree Breeding ◽

Fruit Tree ◽

Fruit Tree Breeding

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Performance of Avocado (Persea americana Mill.) and Mango (Mangifera indica L.) Seedlings Compared with Their Grafted Trees

Journal of the American Society for Horticultural Science ◽

10.21273/jashs.120.2.265 ◽

1995 ◽

Vol 120 (2) ◽

pp. 265-269 ◽

Cited By ~ 3

Author(s):

Emanuel Lahav ◽

Eli Tomer ◽

Shmuel Gazit ◽

Uri Lavi

Keyword(s):

Mangifera Indica ◽

Tree Breeding ◽

Fruit Tree ◽

Persea Americana ◽

Practical Significance ◽

Minor Importance ◽

Fruit Tree Breeding ◽

Selection Of

Most fruit-tree breeding projects are based on selection of seedlings in regard to their performance. The selected seedlings are vegetatively propagated, usually by grafting. It is highly important for the breeder to know whether the performance of the grafted tree will resemble the performance of the original seedling. In this study the performance of avocado and mango seedlings was compared with that of their grafted duplicates. Significant differences were found in only 8 out of 36 avocado traits and 2 out of 10 mango traits. Significant seedling x graft interaction was detected in 10 other avocado traits. These differences were considered of no practical significance, since their magnitude was of minor importance for the breeder. The conclusion for avocado and mango breeders is that for most traits selection could be carried out on ungrafted seedlings.

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333 Evaluation of New Elms from China for Stress Tolerance

HortScience ◽

10.21273/hortsci.34.3.500d ◽

1999 ◽

Vol 34 (3) ◽

pp. 500D-500

Author(s):

A.M. Shirazi ◽

G.H. Ware

Keyword(s):

Stress Tolerance ◽

Heat Tolerance ◽

Cold Hardiness ◽

Urban Landscape ◽

Tree Breeding ◽

Breeding Program ◽

Dutch Elm Disease ◽

Leaf Beetles ◽

Tree Breeding Program ◽

And Performance

The high resistance of Chinese elms to Dutch elm disease and elm leaf beetles makes them excellent trees for the urban landscape. There are many new Chinese elms being developed through the tree breeding program at The Morton Arboretum. Many new elms are already on the market or will be available soon from nurseries. There is little known about the stress tolerance, e.g., cold, heat, drought, etc., of new elms from China. The objectives of this study were 1) to determine the midwinter cold hardiness of new Chinese elms and 2) to determine the leaf heat tolerance and stem cold hardiness of new elms from the nursery. The stem cold hardiness of nine new elms from China was evaluated in Feb. 1998 and 1999 from the elm breeding program at The Morton Arboretum by using an artificial freezing test. The LT50 (the temperature at which 50% of the tissues were killed) of the most to least hardy genuses for Feb. 1998 were Ulmus macrocarpa (> -36 °C), U. wilsoniana # 673 (-34 °C), U. parvifolia R-89-120 (-34 °C), U. wilsoniana # 669 (-34 °C), U. wilsoniana # 997 (-33.8 °C), U. szechuanica (-30 °C), U. gaussenii R-94-85D (-30.7 °C), U. bergmanniana var. lasiophylla R-9422SD (-27.7 °C), and U. castaneifolia #R-9411-11-SD (-25.9 °C). Four new elms from Schmidt Nursery, Boring, Ore., were also evaluated for leaf heat tolerance in August and cold hardiness in Dec. 1998 and Feb. 1999. The LT50 of cold hardiness of stem tissues of cultivars in December were U. parvifolia `Emer 1' P.P. 7551, Athena® elm (-23.5 °C), U. parvifolia `Emer 1' P.P. 7552 Allee® (-26.5 °C), U. Accolade™ (-33.5 °C), and U. Danada Charm™ elm (-31 °C). The LT50 of the most to least heat-tolerant cultivars were U. parvifolia `Emer 1' P.P. 7551, Athena® elm (53.8 °C), U. parvifolia `Emer 1' P.P. 7552 Allee® (52.1 °C), U. Accolade™ (50.8 °C), and U. Danada Charm™ elm (50.6 °C). Growth, dormancy development, spring budbreak, and performance of these cultivars will be compared.

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Matoa (Pometia Pinata Foster): Local Fruit Papua and Strategy Development

Beccariana Botanical Research Bulletin ◽

10.30862/bbrp.v7i1.276 ◽

2010 ◽

Vol 7 (1) ◽

Author(s):

Julius D. Nugroho

Keyword(s):

Genetic Resources ◽

Fruit Tree ◽

Breeding Program ◽

Strategy Development ◽

Local Market ◽

Font Size ◽

Breeding Programs ◽

Irian Jaya ◽

Forest Exploitation ◽

Program Strategy

Matoa (Pometia pinnata) is a local fruit of  Papua (formerly called Irian Jaya) which has high potensial to develop as comercial fruit. Highly significant genetic resources of matoa potentially for breeding program in Papua are being threatened as a result of cutting down trees for fruit harvesting and of forest exploitation for timber. Besides the loss of genetic resources facing now, other major problems should be consider for conservation and domestication of this fruit tree species i.e. lack of silviculture and agronomy knowledge for further breeding programs; matoa production only for local market; and inadequate government policy for matoa breeding program. Strategy developed for matoa conservation and domestication should also concern about time limited due to the fast loss of genetic poll. This paper provides a general overview of strategy for conservation and domestication of Pometia pinnata with special reference to Papua.

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