Ongoing research

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Soil Amendments

Amendments to Improve Infiltration Amendments target soil structure. The goal is to decrease soil resistance to water movement, thus improving water infiltration. Excessive sodium (Na+) causes swelling and dispersion of clay particles, blocking soil pores.
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Principles of Fruit & Nut Tree Growth, Cropping & Management

Tree growth, development & pruning Dormancy, chilling & rest breaking Flowering, pollination & fruit set Fruit development & thinning Tree water relations & irrigation Plant nutrition & fertilization Root growth & rootstocks Tree fruit pests and pathogens Harvesting For course content questions, ple...
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Flower Anatomy & Pollination

Flower Anatomy | Pollination | Seed & Fruit Development | Fruit Anatomy | Vegetative & Floral Tissue Development | Flower Development & Tree Morphology | Anatomy of Tree Fruit & Nut Crops | Terms & Definitions | Reviewers & Credits | Summary ChartIn addition to being beautiful, flowers play a centra...
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Quince

Quince Propagation | Scion & Rootstock Selection | Orchard Management | Deficiencies & Pests | Reviewers & Credits | Resources & Links Quince fruit and flower illustrations from Medizinal-Pflanzen by Franz Eugen Khler1897.Quince (Cydonia oblonga Mill.
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Persimmon in California

Persimmon Propagation | Scion & Rootstock Selection | Flower, Fruit & Cultivar Photo Gallery | Deficiencies & Pests | Reviewers & Credits | References & Links Persimmon, cv. Fuyu. photographer anon., Fotolia imagePersimmon, Diospyros kaki L.
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Stone Fruit Propagation

Apricot | Cherry | Peach & Nectarine | Fresh Plum | Dried Plum/Prune Overview | Propagation by: Seed | Cuttings | Grafting & Budding | References Modern stone fruit varieties are propagated vegetatively to maintain desirable fruiting traits.
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Stone Fruit Propagation by Cuttings

Apricot | Cherry | Peach & Nectarine | Plum | Dried Plum/PruneOverview | Propagation by: Seed | Cuttings | Grafting & Budding | References Direct stick cutting propagation is common for several clonally propagated rootstock varieties that do not produce true-to-type seed (Hartmann, Kester, Davies, &...
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Stone Fruit Propagation by Grafting & Budding

Apricot | Cherry | Peach & Nectarine | Plum | Dried Plum/PruneOverview | Propagation by: Seed | Cuttings | Grafting & Budding | References Not all stone fruit scions are compatible with available Prunus rootstocks, although incompatibility between rootstock and scion (graft incompatibility) may not...
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Stone Fruit Propagation by Seed

Apricot | Cherry | Peach & Nectarine | Plum | Dried Plum/PruneOverview | Propagation by: Seed | Cuttings | Grafting | Budding | References Sexual propagation with seeds is only used to produce seedling rootstock, or in breeding new fruit varieties.
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