{
    "document_id": 15927,
    "page": 6,
    "width_pt": 461,
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            "id": "p6.1",
            "order": 1,
            "type": "text",
            "bbox": {
                "l": 59.2749,
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            },
            "text": "Propagation characteristics."
        },
        {
            "id": "p6.2",
            "order": 2,
            "type": "text",
            "bbox": {
                "l": 58.5549,
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            "text": "Rapid germination, in less than 60 days and greater than 80 percent. Successful meristem tissue culture and rooting of plantlets. Seedlings and young plants tolerant of exposure to direct sunlight."
        },
        {
            "id": "p6.3",
            "order": 3,
            "type": "title",
            "bbox": {
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            "text": "Genetic base",
            "attrs": {
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            "level": 2
        },
        {
            "id": "p6.4",
            "order": 4,
            "type": "heading",
            "bbox": {
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            "text": "Cultivars",
            "attrs": {
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            "level": 3
        },
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            "id": "p6.5",
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            "bbox": {
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            "text": "Unlike many new crops which have little history of domestication, the history of pawpaw selection is relatively long and has resulted in many cultivars. Since 1900, at least 56 selections of pawpaw have been named and propagated (Table 1). With a few exceptions, all of these cultivars were selected from the wild, and most have been recorded in the literature. Unfortunately, 36 of these, dating mostly from before 1940, appear lost; they have either disappeared from cultivation, or have through the neglect and abandonment of collections lost the labels and records needed for proper identification (Peterson, 1986). The 20 extant cultivars date primarily since World War II, several of which have not been heretofore recorded."
        },
        {
            "id": "p6.6",
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            "type": "text",
            "bbox": {
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            "text": "Cultivars do not appear to have been selected outside the U.S.A., although Asimina triloba has been introduced to many temperate countries of both the northern and southern hemispheres. Pawpaw was introduced to England in 1736 by Peter Collinson (Dillwyn, 1843). Not long after that it was introduced to the continent of Europe. It was introduced to Japan around 1895; and again to the Kyoto agricultural experiment station in 1905 (Uehara, 1954). It has been introduced to the U.S.S.R., Argentina, Chile, India, Australia, and New Zealand at unknown dates (probably prior to 1950). The author has sent seed to agricultural experiment stations in Romania (1986), Argentina (INTA, San Pedro, 1985), and India (Tamil Nadu Agricultural University, 1983) and to private individuals in Italy (1985) and Nepal (1989). Swartz sent seed to Dr. Jordan of Catholic University, Santiago, Chile (1988)."
        },
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            "id": "p6.7",
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            "bbox": {
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            "text": "By comparison with commercial fruit crops, the cultivars of the pawpaw are undescribed. The few published descriptions which exist report in general narrative style the circumstances of discovery, the appearance, flavor, and size of the fruit, and the month of harvest. They are short on specific details and exhibit no consistent standard of description. Omitted are quantitative measurements of the means and variation of yield, fruit size, seed size, and seed: fruit ratios that might permit comparison of cultivars, analysis of varietal response to different climates and cultural regimes, or analysis of inheritance and heritability of traits. Description of characters, such as size, proportion, color, etc. of leaf, bud, flower, fruit, seed, isozymes, etc. that could be used to differentiate and identify cultivars has not been attempted."
        },
        {
            "id": "p6.8",
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            "type": "text",
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            },
            "text": "574",
            "attrs": {
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            }
        }
    ],
    "excluded_furniture": {
        "first": [],
        "last": []
    }
}