3种花卉在山区及平原越夏的效果评价

通过对金宝剑（Vrieseamarjolcin）、安祖花（Anthuriumandraeanum）和一品红（Euphorbiapulcherrima）3种花卉在萧山区海拔500m山区越夏与海拔9m平原越夏的比较试验，结果显示：山区越夏后，金宝剑的叶片数、叶片长度、叶宽、株高和冠径分别比平原越夏后增长了6．9％，28．6％，7．1％，7．5％和9．7％，叶色较深，生长好又快；安祖花的植株高，花蕾多，叶片深绿、有光泽，其平均株高和单株花蕾数分别比平原越夏后高3．2cm和多0．8个；一品红的平均株高55．8cm，每株最大苞片平均7．8cm，且完全转红，达到市场销售的要求，而平原越夏后则出现下部叶片掉落的现象（平均株高57．1cm，每株最大苞片平均7．2cm），不完全转红，不能形成成品，达不到市场销售的要求。表明这三种花卉在山区越夏的生长情况都要好于平原越夏。

Comparison and evaluation of estival growing status of three kinds of flowers in mountains and plain areas

Comparative experiment was carried out on the growth of pineapple （Vriesea marjolcin ） , anthurium （Anthurium andraeanum ） , poinsettia （Euphorbia pulcherrirna ） in Xiaoshan mountain area （altitude of 500 m above sea level） and plain area （altitude of 9 m above sea level） during the summer season. Plant characteristic parameters were measured after the summer. Compared with the individuals grown in the plain area, the blade number, blade length, blade width, stem length, and crown diameter of the pineapple grown in the mountain area increased respectively by 6. 9%, 28. 6%, 7. 1%, 7. 5%, and 9. 7% green leaf of the pineapple was darker, the growth was fast and good. Anthurium had a high plant, a lot of buds, and dark green glossy leaves; the mean stem length and flower bud number per individual of anthurium increased respectively by 3. 2 cm and 0. 8. The stem length and biggest bractlength of poinsettia averaged 55.8 cm and 7.8 cm in the mountain area. The poinsettia in the mountain areas also turned red completely after the summer, which met the requirements for market. But the lower leaves of poinsettia in the plain area shed after summer（the stem length and biggest bract length of poinsettia averaged 57.1 cm and 7.2 cm）, turned red incompletely, and was commercially unsatisfactory. This study indicated that it is beneficial to grow these three kinds flowers in mountain areas during summer season.