薰衣草在甘肃定西干旱区的栽培适应性

为扩大香料植物薰衣草(Lavandula spp.)在我国西北的栽培范围,于2008年从北京植物园引进其种子,并于2008-2009年在甘肃定西地区进行栽培适应性试验。结果表明:1)薰衣草出苗率低但成活率高,平均出苗率和成活率分别为19.2%和97.4%;2)生长发育较快且为早花早实物种,1龄和2龄苗平均株高达13.5和44.1 cm,当年个别植株开花,第2年普遍开花结实;3)移栽成活率高,幼苗移栽和1龄苗定植移栽成活率分别为83.3%和99.8%;4)耐寒性和抗旱性强,当年生苗在定西能自然越冬,1龄苗能忍耐1个多月的持续干旱气候条件。研究初步认为,薰衣草能适应定西的气候和土壤条件,在该区具灌溉条件的地方有引种栽培的可能性,但大面积栽培有待继续试验研究。

Adaptability of Lavandula sp.in Dingxi arid area of Gansu

In order to extend the cultivating area of Lavandula sp. in Northwest China, seeds of the perfume plant were introduced to Dingxi district of Gansu province from Beijing Botanical Garden, and its adaptabilities were studied from 2008 to 2009. The results showed that Lavandula sp. had a lower germination rate （19.2%） and a higher survival rate （97.4%）. Height was 13.5 cm and 44.1 cm in the first and second year, respectively, and all plants flowered in the second year. Therefore, this is a rapid growth, early flowering and early bearing seed plant in Dingxi. Survival rates of 2 month seedlings and 1 year old plants were 83.3% and 99.8% after transplantation. The seedlings can safely overwinter through the winter of the planting year, and tolerate to the drought for more than one month. Thereby, the plant has strong resistance to cold and drought. This study implies that Lavandula sp. adapts to Dingxi’s climate and soil condition, so there is a potential to introduce and culture in some area with irrigation system. However, large scale cultivation in the area needs some further study.