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Silvana Nicola, Luigi Basoccu, and Salvino Leoni

Excessive nitrogen can be detrimental to transplant quality when supplied during the period of suboptimal photoperiod conditions. This investigation was made to determine the relationship between nitrogen and photoperiod on the growth rate of the transplants. The growth analysis included the determination of the net assimilation rate (NAR) and the nitrogen productivity (NP). `Camone' tomato (Lycopersicon esculentum Mill.) seedlings were grown in the greenhouse under two photoperiods 8 and 12 h) at a constant light intensity and fertilized with three different N concentrations (8, 15, and 30 mmol·liter–1) applied four times. Longer photoperiods enhanced plant growth by increasing the internode, LAR, SLA, and SWR. Root fresh weight, dry weight, stem dry matter, NAR, and RWR were minimal when 30 mmol·liter–1 N concentration was supplied, while LAR and SLA were at their maximum level. The interaction between N and photoperiod was significant. Increasing N supply during an 8-h photoperiod decreased growth. During a 12-h photoperiod, 15 mmol·liter–1 was the optimum N concentration for fresh growth and 8 mmol·liter–1 for shoot dry growth. The RGR had the lowest value, with 30 mmol·liter–1 N and 8-h photoperiod. PNC was highest when plants received 30 mmol·liter–1 N during an 8-h photoperiod, and when the plants received 15 and 30 mmol·liter–1 N during the 8-h photoperiod. LNC doubled in plants fertilized with 30 mmol·liter–1 N compared to those with 8 mmol·liter–1 when grown under a 12-h photoperiod. The NP was at the maximum in plants fertilized with 8 mmol·liter–1 N at the 12-h photoperiod. The lowest NP values occurred when plants were fertilized with 30 mmol·liter–1 N. When photoperiod is a limiting factor in growing seedlings, N supply must be limited to optimize the efficiency of its utilization by the plant.

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Toshio Shibuya, Ryosuke Endo, Yoshiaki Kitaya, and Mizuki Tsuchida

allocation (ratios of the leaf, stem, and root DM to total DM) at transplanting and the growth analysis parameters (RGR, NAR, and LAR) after transplanting to the pots and between dry matter production of plant stands per unit growing area and RGR after

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Eric T. Stafne and Barbara J. Smith

update on timing foliar nutrient applications to citrus and avocado HortTechnology 23 536 541 doi: 10.21273/HORTTECH.23.5.536 Price, C. Munns, R. 2018 Chapter 6—Growth analysis: A quantitative approach. In: R. Munns, S. Schmidt, C. Beveridge, and U

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Fan Li, Shenchong Li, and Qinli Shan

. The four cultivars refer to different phenotypes that adapted to low-latitude and high-altitude regions in Yunnan Province, China. Plant growth analysis. Plant growth analysis were carried out on the 60th day after planting. The parameters of plant

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Guangyao Wang, Mathieu Ngouajio, Milton E. McGiffen Jr, and Chad M. Hutchinson

at the soil surface and dried at 70 °C with ventilation until a constant weight was reached. Lettuce and muskmelon plants were sampled for growth analysis every 2 weeks for a total of five times and four times each year, respectively, from 1999 to

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Anke van der Ploeg, Susana M.P. Carvalho, and Ep Heuvelink

oven (105 °C) for at least 15 h. Total plant leaf area and individual flower area of the first lateral flower were measured with a leaf area meter (model 3100; LI-COR, Lincoln, NE). Growth analysis and light use efficiency. In the early stage of

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observations of tissues around the microchip and growth analysis of plant canes were performed. They found that rose plants could be safely tagged with a RFID microchip following suitable selection of cane calliper as early as the nursery phase, without

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Carlos Campillo, M.I. García, C. Daza, and M.H. Prieto

unit of land area. LAI is the component of crop growth analysis that accounts for the ability of the crop to capture light energy; it is critical for an understanding of the functions of many crop management practices. LAI is important for many areas

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Panpan Meng, Ying Ge, Qianjin Cao, Jie Chang, Peng Pan, Chi Liu, Yijun Lu, and Scott X. Chang

) . Four replicates were randomly selected from the six replications of each treatment and harvested for growth analysis. The length, width, area, and number of fully expanded leaves (at the end of the experiment, all leaves of the three Lycoris species

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Chang-Xia Du, Huai-Fu Fan, Shi-Rong Guo, and Takafumi Tezuka

). The isozyme bands were inhibited by salt stress, and exogenous SPD application increased slightly the R-C2 band and did not change the expression of R-C1. Discussion and Conclusions Growth analysis is a widely used analytical tool for