TY - THES TI - Theoretical studies on genetic limits to natural and artificial selection with mutation AU - Zeng, Z.-B. DA - 1986/// PY - 1986/// M3 - Ph.D Thesis PB - Department of Genetics, The University of Edinburgh ER - TY - JOUR TI - The selection limit due to the conflict between truncation and stabilizing selection with mutation AU - Zeng, Z.-B. AU - Hill, W.G. T2 - Genetics DA - 1986/// PY - 1986/// VL - 114 SP - 1313–1328 ER - TY - JOUR TI - Effect of CO2 and light intensity on nutrient uptake in Chrysanthemum morifolium AU - Depa, M. AU - Nelson, P.V. AU - Willits, D.H. AU - Peet, M.M. T2 - HortScience DA - 1986/// PY - 1986/// VL - 21 IS - 3 SP - 763 ER - TY - JOUR TI - Development of a database for modeling CO2 and light effects on photosynthesis and growth in Chrysanthemum morifolium AU - Peet, M.M. AU - Willits, D.H. AU - Depa, M. AU - Nelson, P.V. T2 - HortScience DA - 1986/8// PY - 1986/8// VL - 21 IS - 887 ER - TY - JOUR TI - Comparison of six methods of multiple trait selection for fruit yield and quality traits in three fresh-market cucumber populations AU - Strefeler, M.S. AU - Wehner, T.C. T2 - Journal of the American Society for Horticultural Science DA - 1986/// PY - 1986/// VL - 111 IS - 5 SP - 792–798 ER - TY - JOUR TI - Estimates of heritabilities and genetic variances of three yield and five quality traits in three fresh-market cucumber populations AU - Strefeler, M.S. AU - Wehner, T.C. T2 - Journal of the American Society for Horticultural Science DA - 1986/// PY - 1986/// VL - 111 IS - 4 SP - 599–605 ER - TY - JOUR TI - Efficiency of 3 single-harvest tests for evaluation of yield in pickling cucumber AU - Wehner, Todd C. T2 - Euphytica DA - 1986/6// PY - 1986/6// DO - 10.1007/bf00021857 VL - 35 IS - 2 SP - 493-501 J2 - Euphytica LA - en OP - SN - 0014-2336 1573-5060 UR - http://dx.doi.org/10.1007/bf00021857 DB - Crossref ER - TY - JOUR TI - Optimum plot size determination and its application to cucumber yield trials AU - Swallow, William H. AU - Wehner, Todd C. T2 - Euphytica DA - 1986/6// PY - 1986/6// DO - 10.1007/bf00021850 VL - 35 IS - 2 SP - 421-432 J2 - Euphytica LA - en OP - SN - 0014-2336 1573-5060 UR - http://dx.doi.org/10.1007/bf00021850 DB - Crossref ER - TY - JOUR TI - Effect of inbreeding on horticultural performance of lines developed from an open-pollinated pickling cucumber population AU - Rubino, David B. AU - Wehner, Todd C. T2 - Euphytica DA - 1986/6// PY - 1986/6// DO - 10.1007/bf00021854 VL - 35 IS - 2 SP - 459-464 J2 - Euphytica LA - en OP - SN - 0014-2336 1573-5060 UR - http://dx.doi.org/10.1007/bf00021854 DB - Crossref ER - TY - JOUR TI - Efficiency of early generation testing in pickling cucumber AU - Rubino, David B. AU - Wehner, Todd C. T2 - Euphytica DA - 1986/3// PY - 1986/3// DO - 10.1007/bf00028545 VL - 35 IS - 1 SP - 89-96 J2 - Euphytica LA - en OP - SN - 0014-2336 1573-5060 UR - http://dx.doi.org/10.1007/bf00028545 DB - Crossref ER - TY - JOUR TI - Economic Injury Level, Action Threshold, and a Yield-loss Model for the Pea Aphid, Acyrthosiphon pisum (Homoptera: Aphididae), on Green Peas, Pisum sativum AU - Yencho, G. C. AU - Getzin, L. W. AU - Lono, Garrell E. T2 - Journal of Economic Entomology AB - Economic injury level, action threshold, and population development studies with the pea aphid (PA), Acyrthosiphon pisum (Harris), were conducted during 1983–85. Pea aphid densities, simulating those in commercial pea fields, were established using insecticides to manipulate infestation levels. Three experiments, incorporating 12 treatments and six replications, were analyzed. A generalized, nonlinear equation relating pea yield to accumulated aphid feeding days (AFD) is described. The model approximates two phases of a sigmoid infestation-yield curve. An upper maximum plateau and a region of rapidly decreasing yield are approximated. Beyond 1,800 AFD, a lower minimum yield plateau is hypothesized. Economic injury levels calculated for the 3 years’ experiments using the generalized model were 22.2, 18.2, and 12.2 AFD, respectively. Action threshold estimates were determined from linear regression estimates of yield versus aphids per plant at bloom. Action thresholds were 3.6, 0.3, and 0.3 aphids per plant for the years 1983, 1984, and 1985, respectively. The pea quality components, tenderometer (TD) and sieve size, were altered by maximum PA densities. High AFD levels increased TD and decreased sieve size significantly when compared with aphid-free controls. Protein content of green peas was not significantly altered by PA feeding. DA - 1986/// PY - 1986/// DO - 10.1093/jee/79.6.1681 VL - 79 IS - 6 SP - 1681-1687 ER - TY - JOUR TI - The speed at which ethephon enters cucumber leaves AU - Miller, C. H. AU - Sheets, S. M. T2 - HortScience DA - 1986/// PY - 1986/// VL - 21 IS - 2 SP - 276 ER - TY - JOUR TI - Ribbon row production of six strawberry cultivars grown at six spacings on raised and flat beds in southeastern North Carolina AU - Durner, E. F. AU - Poling, E. B. T2 - Advances in Strawberry Production DA - 1986/// PY - 1986/// VL - 5 SP - 1 ER - TY - JOUR TI - 6-BA applied after shoot and/or root chilling and its effect on growth resumption in apple and peach AU - Young, E. AU - Werner, D. J. T2 - HortScience DA - 1986/// PY - 1986/// VL - 21 IS - 2 SP - 280 ER - TY - JOUR TI - Young Granny Smith difficult to flower, set fruit AU - Unrath, C. R. T2 - Goodfruit Grower DA - 1986/// PY - 1986/// VL - 37 IS - 12 SP - 13 ER - TY - JOUR TI - Influence of 12 ground cover systems on young 'Smoothee Golden Delicious' apple trees: I. Growth AU - Shribbs, J. M. AU - Skroch, W. A. T2 - Journal of the American Society for Horticultural Science DA - 1986/// PY - 1986/// VL - 111 IS - 4 SP - 525 ER - TY - JOUR TI - Effect of stratification temperature and time on rest fulfilment and growth in American ginseng AU - Konsler, T. R. T2 - Journal of the American Society for Horticultural Science DA - 1986/// PY - 1986/// VL - 111 IS - 5 SP - 651 ER - TY - JOUR TI - Effect of soil moisture tension and soil water content on the growth of chrysanthemum in 3 container media AU - Karlovich, P. T. AU - Fonteno, W. C. T2 - Journal of the American Society for Horticultural Science DA - 1986/// PY - 1986/// VL - 111 IS - 2 SP - 191 ER - TY - JOUR TI - Bonzi: A new growth regulator for floricultural crops AU - Larson, R. A. T2 - North Carolina Flower Growers' Bulletin DA - 1986/// PY - 1986/// VL - 30 IS - 2 SP - 1 ER - TY - JOUR TI - INVIVO MAGNETIC-RESONANCE MICROSCOPY OF CHANGING WATER-CONTENT IN PELARGONIUM HORTORUM ROOTS AU - BROWN, JM AU - JOHNSON, GA AU - KRAMER, PJ T2 - PLANT PHYSIOLOGY AB - Magnetic resonance imaging (MRI) was used to nondestructively observe changes in water content in roots of Pelargonium hortorum x Bailey during a period of relatively rapid transpiration. Anatomical regions of the root could be differentiated with a spatial resolution of 0.1 x 0.1 mm. MRI shows great potential for study of plant-water relations. DA - 1986/12// PY - 1986/12// DO - 10.1104/pp.82.4.1158 VL - 82 IS - 4 SP - 1158-1160 SN - 0032-0889 ER - TY - JOUR TI - Commercial forcing and marketing requirements for flower-bulbs in the U.S. and Canada AU - Hertogh, A. A. de AU - Kamp, M. T2 - Acta Horticulturae DA - 1986/// PY - 1986/// IS - 177 SP - 267 ER - TY - JOUR TI - "Silver Sheen", an imposter clone of Waukegan juniper AU - Hatch, L. C. AU - Fantz, P. R. T2 - HortScience DA - 1986/// PY - 1986/// VL - 21 IS - 3 SP - 543 ER - TY - JOUR TI - Tomato yield as influenced by plant protection systems AU - Perry, K. B. AU - Sanders, D. C. T2 - HortScience DA - 1986/// PY - 1986/// VL - 21 IS - 2 SP - 238 ER - TY - JOUR TI - Orchard floor management AU - Skroch, W. A. AU - Shribbs, J. M. T2 - HortScience DA - 1986/// PY - 1986/// VL - 21 IS - 3 SP - 390 ER - TY - JOUR TI - Field observation of frost injury in strawberry buds and blossoms AU - Perry, K. B. AU - Poling, E. B. T2 - Advances in Strawberry Production DA - 1986/// PY - 1986/// VL - 5 SP - 31 ER - TY - JOUR TI - FROSTPRO, a model of overhead irrigation rates for frost/freeze protection of apple orchards AU - Perry, K. B. T2 - HortScience DA - 1986/// PY - 1986/// VL - 21 IS - 4 SP - 1060 ER - TY - JOUR TI - Effects of irrigation frequency and scheduling on fruit production and radial fruit cracking in greenhouse tomatoes in soil beds and in a soil-less medium in bags AU - Abbott, J.D. AU - Peet, M.M. AU - Willits, D.H. AU - Sanders, D.C. AU - Gough, R.E. T2 - Scientia Horticulturae AB - The effects on yield and radial fruit cracking of 2 media (soil in beds and soil-less medium in bags) and 2 drip-irrigation frequencies (once and 4 times daily) were determined for 4 greenhouse tomato (Lycopersicum esculentum L. Mill.) cultivars. For plants grown in soil-less medium, 2 tensiometer-controlled, drip-irrigation scheduling methods were compared. ‘Michigan’—‘Ohio’ hybrid fruit cracked significantly more than the 3 remaining cultivars, but did not differ in production of total and No. 1 fruit. The amount and severity of fruit cracking was least from the soil-less, bag-cultured plants. Total mean fruit weight was greatest from soil-grown plants. Although no differences in cracking occurred in the fruit from soil-less, bag-cultured plants, those whose irrigation was based on soil-less medium tensiometer readings produced lower total mean fruit weight than those whose irrigation was based on soil tensiometer readings. Number and weight of defective fruit was lowest from plants grown in soil-less medium and whose irrigation was based on soil tensiometer readings, and greatest from soil-grown plants. Fruit cracking was reduced by increasing the irrigation frequency from 1 to 4 times daily. DA - 1986/4// PY - 1986/4// DO - 10.1016/0304-4238(86)90002-6 VL - 28 IS - 3 SP - 209-217 J2 - Scientia Horticulturae LA - en OP - SN - 0304-4238 UR - http://dx.doi.org/10.1016/0304-4238(86)90002-6 DB - Crossref ER - TY - JOUR TI - Economics of changing from matted row to annual hill system strawberry production AU - Poling, E. B. AU - Safley, C. D. T2 - HortScience DA - 1986/// PY - 1986/// VL - 21 IS - 6 SP - 1409 ER - TY - JOUR TI - Comparison of 14 methods to determine heat unit requirements for cucumber harvest AU - Perry, K.B. AU - Wehner, T.C. AU - Johnson, G.L. T2 - HortScience DA - 1986/// PY - 1986/// VL - 21 IS - 3 SP - 419–423 ER - TY - JOUR TI - Annual strawberry hill cultural system in southeastern North Carolina AU - Poling, E. B. AU - Durner, E. F. T2 - HortScience DA - 1986/// PY - 1986/// VL - 21 IS - 2 SP - 240 ER - TY - JOUR TI - ACCLIMATION TO HIGH CO2 IN MONOECIOUS CUCUMBERS .2. CARBON EXCHANGE-RATES, ENZYME-ACTIVITIES, AND STARCH AND NUTRIENT CONCENTRATIONS AU - PEET, MM AU - HUBER, SC AU - PATTERSON, DT T2 - PLANT PHYSIOLOGY AB - Carbon exchange capacity of cucumber (Cucumis sativus L.) germinated and grown in controlled environment chambers at 1000 microliters per liter CO2 decreased from the vegetative growth stage to the fruiting stage, during which time capacity of plants grown at 350 microliters per liter increased. Carbon exchange rates (CERs) measured under growth conditions during the fruiting period were, in fact, lower in plants grown at 1000 microliters per liter CO2 than those grown at 350. Progressive decreases in CERs in 1000 microliters per liter plants were associated with decreasing stomatal conductances and activities of ribulose bisphosphate carboxylase and carbonic anhydrase. Leaf starch concentrations were higher in 1000 microliters per liter CO2 grown-plants than in 350 microliters per liter grown plants but calcium and nitrogen concentrations were lower, the greatest difference occurring at flowering. Sucrose synthase and sucrose-P-synthase activities were similar in 1000 microliters per liter compared to 350 microliters per liter plants during vegetative growth and flowering but higher in 350 microliters per liter plants at fruiting. The decreased carbon exchange rates observed in this cultivar at 1000 microliters per liter CO2 could explain the lack of any yield increase (MM Peet 1986 Plant Physiol 80: 59-62) when compared with plants grown at 350 microliters per liter. DA - 1986/1// PY - 1986/1// DO - 10.1104/pp.80.1.63 VL - 80 IS - 1 SP - 63-67 SN - 0032-0889 ER - TY - JOUR TI - ACCLIMATION TO HIGH CO2 IN MONOECIOUS CUCUMBERS .1. VEGETATIVE AND REPRODUCTIVE GROWTH AU - PEET, MM T2 - PLANT PHYSIOLOGY AB - CO(2) concentrations of 1000 compared to 350 microliters per liter in controlled environment chambers did not increase total fruit weight or number in a monoecious cucumber (Cucumis sativus L. cv Chipper) nor did it increase biomass, leaf area, or relative growth rates beyond the first 16 days after seeding. Average fruit weight was slightly, but not significantly greater in the 1000 microliters per liter CO(2) treatment because fruit numbers were changed more than total weight. Plants grown at 1000 and 350 microliters per liter CO(2) were similar in distribution of dry matter and leaf area between mainstem, axillary, and subaxillary branches. Early flower production was greater in 1000 microliters per liter plants. Subsequent flower numbers were either lower in enriched plants or similar in the two treatments, except for the harvest at fruiting when enriched plants produced many more male flowers than the 350 microliters per liter treatments. DA - 1986/1// PY - 1986/1// DO - 10.1104/pp.80.1.59 VL - 80 IS - 1 SP - 59-62 SN - 0032-0889 ER -