Back to Search
Start Over
Effects of plastic mulching film-induced leaf burning on seedling growth in tobacco cultivation: Different findings beyond conservation view
- Source :
- Journal of Integrative Agriculture, Vol 17, Iss 6, Pp 1327-1337 (2018)
- Publication Year :
- 2018
- Publisher :
- Elsevier BV, 2018.
-
Abstract
- Solving high-temperature plastic mulching film-induced leaf burning in the first week during tobacco cultivation would take much time and effort. In the present study, the growth as well as the leaf sugar and nicotine contents of seedlings with or without leaf burning induced by high-temperature plastic mulching film were tested at two independent sites in 2015 and 2016 to identify the influence of leaf burning on seedling growth. The results showed that the growth of seedlings with leaf burning was improved with increased leaf area, leaf number and plant height compared to those without leaf burning, combined with an increased seedling survival rate at two sites in two years. In seedlings with leaf burning, the contents of fructose and glucose increased and peaked at 11:00 and 13:00 in the leaf and root, respectively, with an increased root nicotine content beginning at 13:00, highlighting the signalling role of sugars. Activities of antioxidant enzymes including peroxidase (POD), superoxide dismutase (SOD) and catalase (CAT) were all increased in seedlings with leaf burning. More plant biomass was allocated to roots in seedlings with leaf burning with increased root volume compared to control seedlings, which might facilitate the absorption of water and nutrients from the soil. Our findings demonstrate that high-temperature plastic mulching film-induced leaf burning not inhibited but benefited seedling survival and growth, suggesting that the time and labour-consuming manual plucking of burnt leaves can be avoided during tobacco cultivation.
- Subjects :
- 0106 biological sciences
Agriculture (General)
Biomass
Plant Science
01 natural sciences
Biochemistry
S1-972
Nutrient
Food Animals
Sugar
Ecology
biology
fungi
food and beverages
04 agricultural and veterinary sciences
biology.organism_classification
Horticulture
Point of delivery
Seedling
Catalase
plastic mulching film
040103 agronomy & agriculture
biology.protein
0401 agriculture, forestry, and fisheries
Animal Science and Zoology
Cultivation of tobacco
leaf burning
Agronomy and Crop Science
Mulch
tobacco cultivation
nicotine
010606 plant biology & botany
Food Science
Subjects
Details
- ISSN :
- 20953119
- Volume :
- 17
- Database :
- OpenAIRE
- Journal :
- Journal of Integrative Agriculture
- Accession number :
- edsair.doi.dedup.....1cf13c73d3080372875470347f3de7ff