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| Author(s): |
Walter Geremias Rodriguez Robles
Total Authors: 1
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| Document type: | Master's Dissertation |
| Press: | Piracicaba. |
| Institution: | Universidade de São Paulo (USP). Escola Superior de Agricultura Luiz de Queiroz (ESALA/BC) |
| Defense date: | 1999-05-24 |
| Advisor: | Salim Simao |
| Abstract | |
It Was evaluated the inflorescence and fruits in twelve varieties, related to the geographical disposition, allowing like this to observe the productive potential in the conditions of the State of São Paulo. The experiment was conduced in the Universidade de São Paulo, Escola Superior de Agricultura Luiz de Queiroz, in the orchard of the Department of Horticulture, at Piracicaba county, São Paulo State, Brazil, with altitude of 540 m, latitude of 22°43S and longitude 47°38W, being the area climate classified as tropical humid. 12 varieties were used, being l l North American: Tommy Atkins, Smith, Keitt, Adams, Kent, Sensation, Regina, Invin, Pope, Zill, Mommyk and one Brazilian Oliveira Neto. The plants with 18 years of age were cultivated in the spacing of 10,0 x 8,0 m and they were maintained with rubbing in the interlines and prunings of cleaning in the cup. Two plants were used by variety, with its cups divided in four quadrants: North, South, East and West; it was proceeded the evaluations in two periods 1997/1998 (Year 1) and 1998/1999 (Year 2), wiht 192 sub-portions in the total. They were measured in these periods the parameters: panicles number, number of fruits and mass of the fruits. ln the Y ear 2 they were dear the percentage of fertile flowers and of fruits in relation to the hermaphrodite flowers. Still, the factor section of the panicle was included with three levels: basal, middle and apex, being calculated the percentage of flowers and percentage of hermaphrodite flowers for total of flowers, in the respective sections. The experimental delineamento for analysis of the variances of the panicles number and fruits, mass of the fruits, flowers/section percentage and of hermaphrodite flowers for flowers/section total, it went entirely randomized to the ,vith sub-subdivided portions. For analysis of the percentile of fertile flowers and fruits in relation to the hermaphrodite flowers was adopted entirely randomized to the with sub-divided portions. In the experimental conditions ít is ended that the varieties Smith, Oliveira Neto and Tommy Atkins presented larger reasons average (1,36; 1,07 and 0,81, respectively) among amount of fruits in relation to the percentage of fertile flowers. The studied varieties present larger amount of fertile flowers in the area apex, standing out Sensation, Pope and Oliveira Neto. The North quadrant stood out in relation to the panicle number, fertile flowers and number of fruits. However, there was not influence of the quadrants in relation to mass of the fruits and sections of the panicle. The varieties Oliveira Neto and Tommy Atkins when combined the factors number (443, 75; 197,0 fruits/plant) and mass (263,43; 548,82 g/fruit) of the fruits, respectively, they stand out in relation to the other varieties. (AU) | |