Table A5.3 (continued) Species name Common name Muskmelon Cucumis melo Cauliflower B. oleracea botrytis Tolerant (threshold 4.0-6.0 mg/L) Alfalfa Medicago sativa Vetch, purple Vicia benghalensis Parsley Petroselinum crispum Beet, red Beta vulgaris Sugar beet B. vulgaris Tomato Lycopersicum Very tolerant (threshold 6.0–15.0 mg/L) Sorghum Sorghum bicolor Cotton Gossypium hirsutum Celery Apium graveolens Asparagus Asparagus officinalis Note: Boron tolerance may vary, depending upon climate, soil conditions and crop variety. Source: Maas (1986, 1990b); Keren and Bingham (1985). Table A5.4 Maximum boron concentrations in irrigation or soil water tolerated by a variety of ornamentals, without reduction in yields Species name Common name Very sensitive (threshold <0.5 mg/L) Oregon grape Mahonia aquifolium x Photinia Photinia fraseri Xylosma Xylosma congestum Thorny elaeagnus Elaeagnus pungens Laurustinus Viburnum tinus Wax-leaf privet Ligustrum japonicum Pineapple guava Feijoa sellowiana Spindle tree Euonymus japonica Japanese pittosporum Pittosporum tobira Chinese holly Ilex cornuta Juniper Juniperus chinensis Yellow sage Lantana camara American elm Ulmus americana Sensitive (threshold 0.5–1.0 mg/L)a Zinnia Zinnia elegans Pansy Viola tricolor Violet V. odorata sp Larkspur x Delphinium Abelia Glossy abelia grandiflora Rosemary Rosmarinus officinalis Oriental arborvitae Platycladus orientalis x Geranium Pelargonium hortorum Moderately sensitive (threshold 1.0–2.0 mg/L)a sp Gladiolus Gladiolus Marigold Calendula officinalis Poinsettia Euphorbia pulcherrima China aster Callistephus chinensis sp Gardenia Gardenia Southern yew Podocarpus macrophyllus Brush cherry Syzygium paniculatum
Table A5.3 (continued) Species name Common name Cucumis melo Muskmelon B. oleracea botrytis Cauliflower Tolerant (threshold 4.0-6.0 mg/L) Medicago sativa Alfalfa Vicia benghalensis Vetch, purple Petroselinum crispum Parsley Beta vulgaris Beet, red B. vulgaris Sugar beet Lycopersicum Tomato Very tolerant (threshold 6.0–15.0 mg/L) Sorghum bicolor Sorghum Gossypium hirsutum Cotton Apium graveolens Celery Asparagus officinalis Asparagus Note: Boron tolerance may vary, depending upon climate, soil conditions and crop variety. Source: Maas (1986, 1990b); Keren and Bingham (1985). Table A5.4 Maximum boron concentrations in irrigation or soil water tolerated by a variety of ornamentals, without reduction in yields Species name Common name Very sensitive (threshold <0.5 mg/L) Mahonia aquifolium Oregon grape Photinia x fraseri Photinia Xylosma congestum Xylosma Elaeagnus pungens Thorny elaeagnus Viburnum tinus Laurustinus Ligustrum japonicum Wax-leaf privet Feijoa sellowiana Pineapple guava Euonymus japonica Spindle tree Pittosporum tobira Japanese pittosporum Ilex cornuta Chinese holly Juniperus chinensis Juniper Lantana camara Yellow sage Ulmus americana American elm Sensitive (threshold 0.5–1.0 mg/L)a Zinnia elegans Zinnia Viola tricolor Pansy V. odorata Violet Delphinium sp Larkspur Abelia x grandiflora Glossy abelia Rosmarinus officinalis Rosemary Platycladus orientalis Oriental arborvitae Pelargonium x hortorum Geranium Moderately sensitive (threshold 1.0–2.0 mg/L)a Gladiolus sp Gladiolus Calendula officinalis Marigold Euphorbia pulcherrima Poinsettia Callistephus chinensis China aster Gardenia sp Gardenia Podocarpus macrophyllus Southern yew Syzygium paniculatum Brush cherry
water-recycling-guidelines-full-21.docx