.F. 1993 Growth and flowering of triazole-treated zinnia ( Zinnia elegans ) and marigold ( Tagetes erecta ) Plant Growth Reg. Soc. Amer. Quar. 21 169 179 Cox, D.A. Keever, G.J. 1988 Paclobutrazol inhibits growth of zinnia and geranium HortScience 23 1029
Iftikhar Ahmad, Brian E. Whipker, and John M. Dole
Iftikhar Ahmad, John M. Dole, and Frank A. Blazich
’ lisianthus ( Eustoma grandiflorum ), ‘Double Eagle’ African Gold Coin Series marigold ( Tagetes erecta ), a major flower species in the Indo-Pak sub-continent, and ‘Deep Red’ Benary’s Giant Series zinnia ( Zinnia elegans ), one of the top three field
W. Garrett Owen, Brian E. Jackson, William C. Fonteno, and Brian E. Whipker
substrates because substrate pH was inherently within the range of 5.5 to 6.4 ( Gruda and Schnitzler, 2006 ). Saunders et al. (2005) reported no advantage of amending 100% pine tree substrate (PTS) with limestone for african marigold ( Tagetes erecta
Linda L. Taylor, Alexander X. Niemiera, Robert D. Wright, Gregory K. Evanylo, and Wade E. Thomason
. Six containers were left fallow and six were planted with ≈14-d-old marigold ( Tagetes erecta L. ‘Inca Gold’) seedlings grown in a 144-cell plug tray using Fafard Superfine Germinating Mix (Conrad Fafard, Inc., Agawam, MA). Substrate was also
Youping Sun, Genhua Niu, Christina Perez, H. Brent Pemberton, and James Altland
by salt stress in sunflower leaves Scientia Hort. 103 1 93 99 Sayyed, A. Gul, H. Ullah, Z. Hamayun, M. 2014 Effect of salt stress on growth of Tagetes erecta L Pakhtunkhwa J. Life Sci. 2 ( 3/4 ) 96 106 10.21273/HORTSCI.50.10.1562 Sun, Y. Niu, G
D.M. Quinn, B.K. Behe, J.L. Witt, and R.S. Roark
Our objective was to determine heat tolerance and performance of 245 summer-flowering annual plant cultivars installed 16 Mar. 1995 in beds receiving full sun located at the E.V. Smith Research Center in Shorter, Ala. (lat. 32°30′N, long. 85°40′W). No maintenance, with the exception of one midseason pruning of petunias, was performed. Catharanthus roseus L. `Blush Cooler' had the highest mean rating (4.1 of 5.0). Salvia farinacea Benth. `Victoria Blue' and Petunia ×hybrida `Fantasy Pink' both performed well with 3.5 mean ratings. `Purple Wave', a compact spreading cultivar of P. ×hybrida, had a 3.1 mean rating, but had a 5.0 rating before pruning. We do not recommend pruning `Purple Wave'. Of the 34 marigold cultivars evaluated, Tagetes erecta L. `Antigua Mixed' had the highest mean rating. Tagetes erecta `Inca Yellow' and `Perfection Gold' tied with the second highest mean rating.
Linda L. Taylor, Alexander X. Niemiera, Robert D. Wright, and J. Roger Harris
-old marigold ( Tagetes erecta L. ‘Inca Gold’) seedling; seedlings were grown in a 144-cell plug tray using Fafard Superfine Germinating Mix (Conrad Fafard, Inc., Agawam, MA). At Day 1, ≈4 L each of PTS, PTSP, and PL without lime and gypsum amendments were
Brian E. Jackson, Robert D. Wright, and Michael C. Barnes
. Marigold plants ( Tagetes erecta Big. ‘Inca Gold’), grown in a 100% PTS with 18% AS and 65% CC (produced with a 1.6-mm hammermill screen), were as large as plants grown in a peat-lite [PL; 80% peatmoss/20% perlite (v/v)] substrate that had similar AS and
Deborah A. Tolman, Alexander X. Niemiera, and Robert D. Wright
Seedlings of 30-, 35, 40-, -45, and 50-day-old marigold (Tagetes erecta Big. `Inca Gold') in 500-ml plastic pots containing a 1 peat: 1 perlite (v/v) medium were treated with several fertilizer levels (N at 20, 50, 80, and 110 mg·liter-1); solution nutrient levels in the medium were determined 6 hours later. Older/larger container-grown plants absorbed more N, P, and K from the medium solution than younger/smaller plants. Also, older plants (>40 days) absorbed at least 88% of the solution N regardless of N treatment. Nitrogen absorption, regardless of plant age, increased as N application rates increased. The latter result implies that even though total N absorption increases with plant age/size, nutrient levels in the medium solution for optimal growth and nutrient uptake may be similar regardless of plant size.
Xiaomei Zhao, William L. Kingery, and Steven E. Newman
Media blends containing 25%, 40%, and 50% shredded tire rubber were compared to two commercial media, Baccto Grower's Mix and Ball Peat-Lite Mix, to evaluate its potential as a container medium amendment for container-grown greenhouse plants. Salvia splendens `Red Hot Sally' and Vinca rosea `Cooler Peppermint' grown in 25% rubber were marketable with growth similar to or superior to those grown in the commercial media. Exacum affine `Little Champ', Vinca rosea `Cooler Grape', Tagetes erecta `Discovery Yellow', and Begonia semperflorens `Vodka' grown in 25% rubber were of marginally acceptable quality. Plants grown in 40% or more rubber were shorter and chlorotic compared to those in the commercial media. Exacum affine grown in 40% or more rubber contained high levels of zinc, which may have been linked to the chlorosis and growth reduction. Rubber reduced media water-holding capacity, while cation exchange capacity and pH were not affected.