Abstract

Info

Title:: Study on Variety Adaptability,Planting Density and Cultivation Pattern of  Asparagus Lettuce

Author(s):: MA Yanxia; WANG Xiaowei; ZHANG Junfeng; ZHANG Yuxin; KUAI Jialin; (Vegetable Research Institute,Gansu Academy of Agricultural Sciences,Lanzhou,Gansu 730070)

Keywords:: Oasis areas; asparagus lettuce; variety comparative test; planting density; cultivation pattern

Abstract:: The seeds of improved variety of asparagus lettuce,which is one of the main categories of plateau summer vegetables planted in Gansu,was tested by the cultivation in oasis areas(Gaotai county)for varieties’ adaptability,planting density and cultivation pattern in 2015.The results showed that compared with the contrast variety,W4(‘14-Q64’)was the best of them.W4 growth period was 75 days from sowing to harvest,the fleshy stem was long stick-shaped,its plant weight was over control 4.56%.The commodity rate W4 with the thinnest stem bark(0.6 cm)was the highest(98.5%) among the tested varieties.Asparagus plant height,stem length,stem diameter and plant weight decreased with increasing planting density in the same planting pattern.In the same planting density,the plant height,stem length,stem diameter and plant weight of asparagus bed-planting was higher than flat culture.It was illustrated that W4 was the most suitable varieties for cultivation in oasis areas of Gansu corridor,and the best cultivating mode,bed planting with row spacing was 30 cm,and individual spacing was 35 cm. Keywords:Oasis areas;asparagus lettuce;variety comparative test;planting density;cultivation pattern