疏花蔷薇( Rosa laxa Retz .) 花期长达 150 d 左右, 花多而芳香。 单花内生数百枚花药, 花粉量大, 微甜味纯, 无毒无污染;在各类花粉的开发利用中具显著特点和优势。 新疆 3 个不同生态型地区疏花蔷薇花粉平均含粗蛋白 6.62%～ 8.25%, 总糖 15.27%～ 17.53%, 氨基酸 6.94 %～6.99%, 并富含多种维生素和矿质营养。 新疆阿拉尔 5 年生( 盛果期) 半野生蔷薇单丛花期平均产
粉量为 82.7 g, 盛花期产粉量占整个花期产粉量的 65 %。

 

The y ield and nutrient compositions of pollen of Rosa laxa Retz .collected from Xinjiang, China were determined .According to preliminary estim ation, there are about 10 ×10⁴ hm² of multiflorous roses in Xinjiang .Through random sampling and determining, it was found that the average pollen yield was 82 .7 g per bush per year .The nutrient compositions of the pollen samples collected from Alar, Tianshan and Nanshan are as follow s :crude protein 6 .62 %～ 8 .25 %, total sugars 15 .27 %～ 17 . 52 %, amino acids 6 .94 % ～ 6, 99 %, various amount of vitamins and mineral constituents were also found in the pollen .