reductions in plant height, stem diameter, number of leaves and inflorescences 'with
saline water treatments, the decreases were in proportion to the increase in salinity
level. Also, the data indicated that plants of cv. Red Buttiana and cv. White Buttiana
in the first and second seasons, respectively were the tallest. Plants. of cv. Gold
Buttiana had the thickest stems in the two seasons. Whereas, plants of cv. White
Buttiana showed the highest number of branches and inflorescences. Red Buttiana
CII. had the highest number of leaves and the heaviest F.W. of leaves. All saline water treatments decreased the content of chlorophyll a and b .Red
Buttiana cv. in the first season and White Buttiana cv. in the second one contained
the highest value of chlorophyll a and b. Growing plants under salinity stress of
1500, 3000, and 4500 ppm, markedly increased the caroteniods content. Most of the
saline water treatments caused a remarkable increase in the proline content over the
control plants. Red Buttiana cv. in the first season and Gold Buttiana cv. in the
second one, had the highest value of pronne content, whereas, the lowest value in
both seasons, was recorded with plants of, cv. White Buttiana. In both seasons the
N , P, Na, Ca, K and CI percent of leaves and stems of the three bougainvIllea
cultivars decreased as salinity level increased. In conclusion, comparing the values of vegetative growth, flowering and
chemical constituents of the three cultivars of bougainvillea plants, the data obtained
indicate that White Buttiana CII. in both seasons were the tallest, and had the highest
number of branches and inflorescences, the heaviest dry weight of stems, the
lowest content of proline, sodium., calcium, and chloride and the highest content of
Nand P, as compared with Gold Buttiana and Red Buttiana CIIS.