495 PB 175 PHOSPHORUS SUPPLY CONTROL OF BEDDING PLANT SEEDLING ROOT/SHOOT RATIO
نویسندگان
چکیده
منابع مشابه
Effects of LED Light on Seed Emergence and Seedling Quality of Four Bedding Flowers
Recently much attention has been paid by horticulturists to light-emitting diodes as a new source of economical and spectral-selective light. The reason is mainly coming from their versatility in handling and mounting, long working time, wattage use efficiency and lower heat production. In this study we examined their potential in promoting seed germination and producing quality flower seedling...
متن کاملNitrogen:phosphorous supply ratio and allometry in five alpine plant species
In terrestrial ecosystems, atmospheric nitrogen (N) deposition has greatly increased N availability relative to other elements, particularly phosphorus (P). Alterations in the availability of N relative to P can affect plant growth rate and functional traits, as well as resource allocation to above- versus belowground biomass (MA and MB). Biomass allocation among individual plants is broadly si...
متن کاملUtilization of Composts as Bedding Plant Growth Substrates
Peat moss is the most widely used source of organic matter for growing horticultural crops in the United States. The demand for peat as a substrate constituent for bedding and pot plants has remarkably increased in recent years, thus reducing the availability and increasing cost (Nappi and Barberis, 1993). Composts may serve as qualitatively and economically as competitive alternative sources o...
متن کاملpH Affects Seed Germination of Eight Bedding Plant Species
Seeds of eight commonly grown bedding plant species [Ageratum houstonianum Mill., Begonia × semperflorens Hort., Impatiens wallerana Hook., Lobularia maritima (L.) Desv., Petunia × hybrida Hort., Pelargonium hortorum L.H. Bailey, Salvia splendens F. Sellow, Tagetes patula] were germinated at pH values from 4.5 to 7.5 at 0.5 increments. Seeds were germinated in petri dishes on filter paper satur...
متن کاملClear cutting and burning affect nitrogen supply, phosphorus fractions and seedling growth in soils from a Wyoming lodgepole pine forest
Timber harvesting, with and without prescribed slash ®re, and wild ®re are common disturbances in pine forests of western North America. These disturbances can alter soil nitrogen (N) pools and N supply to colonizing vegetation, but their in ̄uence remains poorly understood for many forests. We investigated the effects of clear cut harvesting and ®re on KCl extractable N pools, net N mineralizat...
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ژورنال
عنوان ژورنال: HortScience
سال: 1994
ISSN: 0018-5345,2327-9834
DOI: 10.21273/hortsci.29.5.502c