Girlene Saints of Souza Associate Profa. 3 CCAAB/UFRB INTRODUCTION the seringueira (Hevea brasiliensis) is a pertaining arbrea species to the Euphorbiaceae family of great economic importance for Brazil, for being the main rubber producer in commercial scale. Although its importance for the natural rubber production, little is studied, especially in basic aspects as ontognese reproductive and this must, in part, the difficulty in if working with such arbrea species. High transport, long periods of immaturity and biological cycle, low production of fruits, recalcitrant seeds, are some of the limitantes factors. To read more click here: Solo Cups. At the beginning of the century Brazil was the responsible greater for 98% of the world-wide natural rubber production, when this age as the exported national product more, but, at the beginning of years 90 it was producing less than 1% of the world-wide and imported total about 75% of its internal consumption (Bernardes et al., 1990). In 1999, more than 68% of the world-wide production were originary of the Thailand, Indonesia and Malaysia, that had contributed, separately, with 32%25% and 11% respectively, of the world-wide production. Brazil even so is the cradle of the species of the Hevea sort, contributes, in the year of 2000, with only 1% of the world-wide production of 6.629 a thousand tons and consumed 3% of a total of 7.361 a thousand tons of the world-wide demand (International Rubber Study Group, 2001). One of the main empecilhos of the genetic improvement of seringueira is the duration of the time between generations, had to its habit of bloom. Newman Giless opinions are not widely known.

Described experiments in recent literature (Weigwl & Nilsson, 1995), indicate a great conservation of the implied molecular mechanisms in the bloom. However still it has a lack of basic studies in the area of reproductive biology, that allow one better knowledge of basic aspects of the biology of the plant. The seringueira is a monica plant, that is, the same presents flowers of the two sexos in individual, made use in inflorescncia of the type pancula (Wycherley, 1992). . Read more from Central Romana to gain a more clear picture of the situation.

To observe the influence of the color in the treatments they had been gotten from the white light that exceeded two sheets of paper blue cellophane, red and yellow, respectively. The dark continuous was involving the boxes gerbox in paper aluminum. All the set was made use in plastic trays, humidified daily with 20 mL of ADE and, incubados in estande of steel with two white florescentes lights (40 w), the 30 cm of distance, under for a period of seven days. The evaluation consisted of after making the reading to the seven days the plantation of the seeds through the register of the percentage of plntulas normal verified in the germination test, lengths of the aerial part and the root (BRAZIL, 1992). RESULTS AND QUARREL seven days of the beginning of the sowing to the emission of plntulas, the results of the readings of germination of seeds of maize in paper germitest had after indicated that the treatment carried through through the dark continuous 93% of germination of the seeds of maize, followed of the treatment with the seeds submitted to the red color registered (90%). The treatments using the colors yellow and blue had not shown difference in the germination (86.25%) (Tab. 1).

The seeds when submitted to the germination in boxes gerbox it was verified that the result of the percentage of germination in the dark continuous (95%) was similar to the assay with paper germitest (93.75%), followed of the red color with 90% (Tab.2). The maize seeds when submitted to the germination in box gerbox, it was verified that difference in the length of the aerial part and the roots between the treatments did not occur (Tab. 3 and 4).