Effects of different cultivation methods on stem apex yield and quality of sweetpotato for vegetable use under urban roof condition
Sweetpotato (Ipomoea batatas) is an important upland crop in China, which plays an important role in feed and industrial raw materials. The root tuber has rich nutrition, and the aerial part of stems and leaves also has extremely high nutritive value. Recently, research on sweetpotato for vegetable...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Zhejiang University Press
2016-11-01
|
| Series: | 浙江大学学报. 农业与生命科学版 |
| Subjects: | |
| Online Access: | https://www.academax.com/doi/10.3785/j.issn.1008-9209.2015.08.251 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Sweetpotato (Ipomoea batatas) is an important upland crop in China, which plays an important role in feed and industrial raw materials. The root tuber has rich nutrition, and the aerial part of stems and leaves also has extremely high nutritive value. Recently, research on sweetpotato for vegetable use increased gradually. With the rapid development of urbanization process, the cultivated area decreased gradually, along with the decline in quantity and quality of agricultural products. However, the increased space of balcony and roof accelerated the development of balcony agriculture and urban roof agriculture. Meanwhile, new devices for planting become popular in daily life in cities. Sweetpotatoes grow faster in summer, and can solve the problem of leaf vegetables in short supply. Moreover, people can plant organic sweetpotato for vegetable use at home in a convenient and safe way.In this paper, three cultivation methods (soil cultivation, substrate cultivation and pipeline nutrient solution culture) and three cultivars (Pushu 53, Guangcaishu 5 and Fushu 18) of sweetpotato for vegetable use were selected for urban roof agriculture, to compare the impact of different cultivation methods on yield and quality of sweetpotato. In July 2014, stem cuttings from each of the three cultivars were planted under three cultivation methods in roof of Jixian Building in Zhejiang A & F University. Experiments were conducted in a randomized complete block design with three replications. Seedlings were examined and replanted in time after cutting to ensure a full stand of seedlings. Furthermore, control and prevention for pests should be conducted during the growth period, and sweetpotato tips (15 cm) were harvested after growth. The yield, water content, pigment content, soluble sugar content, soluble protein content, vitamin C content and nitrate content were determined in the lab.The results showed that the pipeline nutrient solution culture had significant advantages compared with soil cultivation or substrate cultivation. The stem apex yield, chlorophyll b content, total chlorophyll content, carotenoid content and soluble sugar content of Pushu 53, Guangcaishu 5 and Fushu 18 were highest under the pipeline nutrient solution culture condition among all the treatments, while the nitrate content was the lowest.In conclusion, planting Fushu 18 using pipeline nutrient solution culture in urban roof agriculture will be a better choice, with higher biomass and guaranteed quality of sweetpotato for vegetable use. |
|---|---|
| ISSN: | 1008-9209 2097-5155 |