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gas exchange; drought tolerance; light intensity; drought; crop yield; seasonal variation; field experimentation; stomatal conductance; water stress; photosynthesis; cultivars; soil water content; air temperature; leaf water potential; water content; Olea europaea; evapotranspiration; water use efficiency; olives; irrigation rates; fruiting; Tunisia
... A number of high abundant heat shock proteins (HSPs) could be synthesized under stress conditions. In this study, the role of HSP70 and sHSP17.6 in the cross-adaptation induced by either heat acclimation (HA) or cold acclimation (CA) was investigated in the leaves from annual young grape plants (Vitis vinifera L. cv. Jingxiu). The subcellular localizations of HSP70 and sHSP17.6 within mesophyll ce ...
interspecific variation; horticultural crops; flowering; phenology; air temperature; light intensity; flowers; global warming; seasonal variation; photoperiod; domestication; Australia
Abstract:
... In adapting their flowering to a particular season of the year, plants utilize a number of environmental inputs. Knowledge of these environmental controls of flowering is important for production in commercial horticulture. Such information is also relevant for assessing whether or not a species is threatened by global warming. Here, for five Australian plant species, we document ways in which the ...
harvest date; cultivars; strawberries; diameter; Fragaria ananassa; air temperature; phenology; fruit set; heat stress; night temperature; flowers; plant reproduction
Abstract:
... High temperatures are known to reduce fruit size and fruit weight in strawberry, but cultivar differences in the response to high temperature stress during the reproductive stage up to the second inflorescence have not been sufficiently reported. We examined the effect of two day/night temperature regimes on fruit set and fruit growth in two cultivars, 'Nyoho' and 'Toyonoka'. A high day/night temp ...
... One-year-old scale bulblets of Lilium longiflorum Thunb. 'Nellie White' (Easter lily) were grown under a combination of six constant day/night temperature regimes and five N-P-K nutrient treatments under short days for 107d (growing period 1 or GP-1) to compare the effects on growth and development and bulb production. Results during GP-1 were as follows: failure of bulblets to produce a shoot (“n ...
raspberries; cultivars; flowering; plant growth; buds; phenology; air temperature; flower primordia; Rubus idaeus; photoperiod; dormancy; primocanes; plant age
Abstract:
... Environmental control of the annual growth cycle of 'Glen Ample' raspberry has been studied in order to facilitate crop manipulation for out-of-season production. Plants propagated from root buds were raised in long days (LD) at 21°C and then exposed to different temperature and daylength conditions at varying ages. Shoot growth was monitored by weekly measurements and floral initiation by regular ...
... Plants belonging to the genus Ptilotus have immense potential to be developed for the floricultural industry. Many of these plants flower profusely and have potential as cut focal flowers, cut fillers, potted colour or for use in landscape design. Ptilotus nobilis plants produce numerous fragrant cream to pink coloured inflorescences, which exhibit a long vase-life adding to their value as a cut-f ...
... Sugary (Se1Se1) sweet corn hybrids do not have a high quality for human consumption according to the preferences of today's consumers, although they have a good stand establishment in cool environments. On the contrary, sugary enhancer (se1se1) hybrids have a high table quality, but a poor stand establishment in areas with a cool growing season. Sugaryxsugary enhancer (Se1se1) sweet corn genotypes ...
Olea europaea; olives; irrigation scheduling; irrigated farming; orchards; tree trunk; tree growth; diameter; endocarp; shoots; water potential; tree age; seasonal growth; air temperature; water stress; deficit irrigation; fruiting; Spain
Abstract:
... Trunk diameter variation (TDV) is considered one of the most promising tools for automating the scheduling of fruit tree irrigation, and trunk growth rate (TGR) a possible indicator of TDV values. The use of TGR in commercial orchards is less common in olive trees than in other species, possibly because the influence of the environment, orchard age and the presence of developing fruit on the olive ...
... Pleurotus ostreatus strains obtained by interbreeding were cultivated under warm conditions (27°C), with the aim to identify germoplasm adequate to commercial production. Based on the radial growth rate of monokaryotic mycelia isolated from two P. ostreatus strains, a culture isolate was selected from each type of compatibility, and interbred to obtain 16 strains. Pasteurized barley straw was used ...
... The involvement of carbohydrates, water potential, cell wall components and cell wall-based enzymes in regulating flower development in Dendrobium crumenatum was investigated. Plants were subjected to cold treatment to release floral buds from dormancy, and the various parameters were investigated from young floral bud stage till flower senescence. Development of floral buds was accompanied by pro ...
... The purpose of this study is to determine suitable temperature for selecting germplasm with cold tolerance and to investigate the effects of exogenous SA on cold tolerance in watermelon. We found that low temperature (10°C) was the most suitable temperature to identify cold tolerance germplasm in watermelon. Moreover, we classified the capacities of four different watermelon germplasms, of which N ...
... Compounds contained in potato tubers that may act as antioxidants have been attracting increased attention. The main antioxidants in potatoes are polyphenolic compounds. The total polyphenolic (TP) content and antioxidant activity (AA) in potato tubers of four yellow-fleshed cultivars and two purple-fleshed cultivars from the 2004 harvest were tested. The total polyphenolic content was determined ...
... Zonal geranium (Pelargonium x hortorum 'Real Mintaka') were grown in closed soilless systems to evaluate the effects of irrigation system (drip and subirrigation) and nutrient solution concentration (half and full) under various conditions of radiation and temperature (winter and summer) in terms of substrate electrical conductivity (ECs), growth, quality, crop evapotranspiration (ETc) and growth ...
crop models; simulation models; plant growth; small fruits; photosynthetically active radiation; calibration; air temperature; leaf area; model validation; radiation use efficiency; crop yield; dry matter partitioning; Physalis peruviana; Colombia
Abstract:
... Cape gooseberry (Physalis peruviana L.) is grown in the high altitude tropics of Colombia. It is the second most important fruit for export, and the cultivated area has increased significantly during the last years. Several aspects of Cape gooseberry have been studied so far, but there is an important lack of knowledge for supporting the technological development of this specie. The objective of t ...
plant growth; simulation models; cultivars; sowing date; calibration; photosynthates; Daucus carota; air temperature; model validation; cell respiration; growth models; photosynthesis; carrots; dry matter partitioning; roots; leaves; England
Abstract:
... A mechanistic model of carrot vegetative and root development was constructed. This model determined canopy photosynthesis over a day, assimilates were then partitioned into either roots or leaves via temperature dependent partitioning coefficients. Assimilates were lost via terms describing growth and maintenance respiration. The model was calibrated on data from four different carrot cultivars, ...
chemical composition; crop quality; flowering; soil water content; chemical constituents of plants; medicinal properties; air temperature; phenology; plant density; crop yield; Crocus sativus; stigma; corms; rain; provenance; esters; saffron; climatic factors
Abstract:
... Saffron is well known for its use as a condiment spice, as a dye and traditional medicine. Saffron is experiencing an increasing interest mainly due to its peculiar and manifold properties of the metabolic pool of its stigmas, mainly crocetin esters and picrocrocin. This species is cultivated in environments with very different climatic conditions and with very different corm rates from place to p ...
... In a previous experiment it has been found that maximum uptake rate (I max), Michaelis constant (K m), and minimum nutrient concentration (C min) as plant physiological characteristics may be important for phosphorus (P) uptake in peat-substrate. Thus, variation of P uptake parameters was evaluated with a series of depletion studies for poinsettia (Euphorbia pulcherrima) and marigold (Tagetes patu ...
... 'Mal secco' is a serious disease of lemon and other citrus species, reduces lemon production, and limits the use of susceptible cultivars especially in the Mediterranean countries, against which there is no effective management system to control the disease. The objective of this study was to determine yield efficiency, tree and fruit characters, and molecular profiles of the selected promising ge ...
Ribes nigrum; black currants; fruit crops; chilling requirement; heat sums; air temperature; dormancy breaking; budbreak; equations; mathematical models; cultivars; regression analysis
Abstract:
... Temperate-zone crops require a period of winter chilling to terminate dormancy and ensure adequate bud break the following spring. The exact chilling requirement of blackcurrant (Ribes nigrum), a commercially important crop in northern Europe, is relatively unknown. Chill unit models have been successfully utilized to determine the optimum chilling temperature of a range of crops, with one chill u ...
... One cold-sensitive cultivar (Jinyan 4) and two cold-tolerant inbred lines (NY-1 and XC-1) of cucumber (Cucumis sativus L.) were subjected to temperatures of 28°C/22°C (day/night, control) or 28°C/12°C (day/night, cold treatment) in a 10h photoperiod (7:00-17:00). Under control conditions, cucumber fruits grew fast during afternoon and early night, and slow during late night and morning. Under 28°C ...
harvest date; planting date; romaine lettuce; crop quality; cultivars; growth and development; Lactuca sativa var. longifolia; air temperature; heat sums; plant rots; crop yield; seasonal variation; climatic factors; South Carolina
Abstract:
... Romaine lettuce (Lactuca sativa L. var. longifolia Lam.) has great potential as a winter alternative crop in coastal South Carolina. Apache (A), Darkland (D), Green Tower (GT), Green Forest (GF), Ideal Cos (IC), and Tall Guzmaine (TG) romaine lettuce cultivar transplants were planted on 9 different planting dates in Charleston, South Carolina (SC) on monthly intervals from September to April from ...
flowering; plant fertility; crop yield; Prunus persica; dormancy breaking; pollen; orchards; gametophytes; phenology; fruit set; heat stress; embryo sac; greenhouse production; air temperature; fruit crops; peaches; budbreak; pollen germination; plant morphology; Brazil
Abstract:
... The aim of this work was to evaluate the effects of high temperatures in the pre-blooming and blooming periods on the growth of sexual gametes and yield of 'Granada' peach. The experiment was carried out in the commercial orchard of Charqueadas, under the subtropical conditions of the Central Depression at Rio Grande do Sul State, Brazil (28°57'S; 51°37'W; 30m alt.). Two treatments were tested: (1 ...
flowering; pericarp; light intensity; crop yield; seasonal variation; malic acid; fruit quality; titratable acidity; brix; Dimocarpus longan; transmittance; relative humidity; air temperature; fabrics; oxalic acid; ascorbic acid; longans; plastic film; plant cultural practices; fruit crops; fruiting; China
Abstract:
... Clusters of cross-winter off-season longan (Dimocarpus longan Lour) cv. Chuliang were bagged with three types of bags: perforated translucent plastic bag (TPB), white adhesive-bonded fabric bag (WAFB) with about 70% light transmittance, and black adhesive-bonded fabric bag (BAFB) with <10% light transmittance. Bagging treatments began at 34 days after anthesis and continued until harvest. The resu ...
... A tomato (Solanum lycopersicum L.) crop was grown in four greenhouses during the dry season 2005/06 in Central Thailand. Sidewalls and roof vents of two greenhouses were covered with nets and these greenhouses were mechanically ventilated when air temperature exceeded 30°C (NET). The other two greenhouses were covered with polyethylene film and equipped with a fan and pad cooling system (EVAP). Ov ...
... Plant florogenesis is determined by the interaction between the genetics of the individual plant and environmental factors. Flower initiation and development of many studied plant species require low temperatures. However, some geophytes form flowers within the bulb during the summer quiescence period and do not require low temperatures for florogenesis. Narcissus tazetta was employed to study, in ...