Reproductive Biology and Herbicidal Sensitivity of Maypop Passionflower (Passiflora incarnata)

Studies were conducted to evaluate seed and root reproduction and herbicide sensitivity of maypop passionflower (Passiflora incarnata L. ♯ PAQIN). Water-leached seeds that were not exposed to light had the greatest germination (53%). Depending on soil type, seedlings emerged from depths of 10 to 12...

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Bibliographic Details
Published in:Weed science 1985-07, Vol.33 (4), p.484-490
Main Authors: Wehtje, Glenn, Reed, Russell B., Dute, Roland R.
Format: Article
Language:English
Subjects:
Acid soils
ARACHIS HYPOGAEA
Biological and medical sciences
BIOLOGICAL DEVELOPMENT
Chemical control
DESARROLLO BIOLOGICO
DEVELOPPEMENT BIOLOGIQUE
Fundamental and applied biological sciences. Psychology
GERMINACION
GERMINATION
GRAINE
HERBICIDAS
HERBICIDE
HERBICIDES
Parasitic plants. Weeds
PASSIFLORA
PASSIFLORA INCARNATA
Peanuts
Phytopathology. Animal pests. Plant and forest protection
Plant roots
Plants
REGENERACION
REGENERATION
Sandy loam soils
Seedlings
SEEDS
SEMILLA
Soil depth
Weed Biology and Ecology
Weeds
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Summary:Studies were conducted to evaluate seed and root reproduction and herbicide sensitivity of maypop passionflower (Passiflora incarnata L. ♯ PAQIN). Water-leached seeds that were not exposed to light had the greatest germination (53%). Depending on soil type, seedlings emerged from depths of 10 to 12 cm. Most rapid germination and seedling development occurred between 30 and 35 C. Plants rapidly produced an extensive system of lateral roots and rhizomes that had regenerative capability at maturity. Root or rhizome sections of only 0.5 cm in length had a 20% regeneration rate. Desiccation effectively reduced viability of root and rhizome pieces. Effective herbicide control was limited to the triethylamine salt of triclopyr {[(3,5,6-trichloro-2-pyridinyl)oxy] acetic acid} at 2.2 ai kg/ha, alkanolamine salt of 2,4-D [(2,4-dichlorophenoxy)acetic acid] at 1.7 kg/ha, and dicamba (3,6-dichloro-o-anisic acid) at 0.3 to 0.6 kg/ha.
ISSN:0043-1745
1550-2759
DOI:10.1017/S0043174500082709