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Jorge A. Zegbe-D

To estimate the effect of treatments or cultural practices over fruit dimensions on peach, such as fresh and dry weight and equatorial and polar diameters (FW, DW, ED and PD, respectively), the use of destructive samples are frequent. These variables are generally not included, due to the time-consuming and research costs involved. With the purpose to determine in situ the FW and DW of fruit of seedling peach trees, two cubic regression models (CRM) were fitted with 1241 and 1119 field observations of FW, DW, and ED. To determine DW, fruits were cut off immediately and dried at 70C for 24-h. These measurements were taken during growing season of 1984 and 1985. At 2-week intervals, 12 samples were collected each year. Each sample consisted in harvesting randomly five fruits and around the middle part of trees. The CRM were fitted taking the mean of five fruits. FW and DW were used as dependent variables, while ED as independent variable. To validate both models, during the growing season of 1985, 11 samples (five fruits per sample) were taken again from other trees. The real and predicted values of FW and DW were analyzed by a linear regression model (IRM), to know the grade of adjustment between them. The CRM of both variables had significant fit (r 2 = 0.975 and 0.941 for FW and DW, respectively). In contrast, the highest variation coefficient was observed in DW (29.14%), compared with FW (13.4%). In both cubic models, error mean square was the lowest compared to other models. The linear relation between real and predicted values ha values of r 2 = 0.983 and 0.941 for FW and DW, respectively; while the variation coefficients were 9.59% (FW) and 17.32% (DW). The CRM's can be used in future seedling peach experimental works, to predict fruit weight after full bloom until harvest.

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Astrid Kubatsch, Heiner Grüneberg, and Christian Ulrichs

Poole, 1977 ; Sawwan and Ghunem, 1999 ). However, there are differences among species grown under low light intensities. For example, when grown in shade, the fresh and dry weights of Peperomia obtusifolia increased ( Shen and Seeley, 1983 ), but dry

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Steven F. Vaughn, Mark A. Berhow, and Brent Tisserat

from 0.37- and 0.73-m m foliar sprays showing a 34.1% and 37.1% increase in fresh and dry weights, respectively, compared with that obtained from untreated controls ( Fig. 2 ). Lime basil shoot height, fresh and dry weight increased from all 3-MPAN

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Aisu Gu, Wenfang Liu, Chao Ma, Jin Cui, Richard J. Henny, and Jianjun Chen

roots, root length and diameter, leaf area, shoot and root fresh and dry weights, and root/shoot ratio were recorded from randomly selected five vessels per treatment. Mean individual leaf area (total leaf area of a plantlet divided by the total number

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Jia Shen, Rob Dirks, and Michael J. Havey

greenhouse bench; nights at 24 °C). Plants were destructively harvested at 30 d (Expt. 1) and 22 d (Expts. 2 and 3) after planting by cutting stems at the cotyledons, and fresh and dry weights of each plant were measured. The mean weights of the three plants

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Brigitte D. Crawford, John M. Dole, and Ben A. Bergmann

2.5 cm or longer), root fresh weight, and root dry weight. Five cuttings in each rooting compound treatment in each rooting trial, one selected at random from the four cuttings in each experimental unit, were used to record fresh and dry weights of

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Zhengnan Yan, Dongxian He, Genhua Niu, Qing Zhou, and Yinghua Qu

:B ratios of 2.7 and 3.6 had 7–9 leaves. Higher DLIs led to more leaves; leaf number increased by more than 9% as DLI increased from 5.04 to 15.12 mol·m −2 ·d −1 . Fresh and dry weights of lettuce increased in a linear way as DLI increased from 5.04 to 15

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Martin M. Maboko, Christian Phillipus Du Plooy, and Silence Chiloane

and Cochran, 1980 ). Results and Discussion Fresh and dry weight of cucumber plants were significantly improved by the application of NCs at 100%, 75%, and 50% compared with that of reduced NC at 25% ( Table 2 ). Similar findings on decreased fresh and

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Valérie Gravel, Claudine Ménard, and Martine Dorais

experimental unit. The number of leaves per plant was counted and the total leaf area was measured using a LI-3100 area meter (LI-COR Inc., Lincoln, NE). The fresh and dry weight of both the shoot and the roots were then measured. Flower production (number of

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Julia Charlotte Robinson, Guochen Yang, Sanjun Gu, and Zhongge (Cindy) Lu

were harvested and weighed for fresh and dry weight (measured in grams). Dry weight was measured after sample rhizomes were placed in a Fisher Scientific Isotemp 650F Incubator Oven (Fisher Scientific, Dubuque, IA), inside open and labeled brown paper