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- Title
种植密度和化控对小麦后直播棉纤维品质的影响.
- Authors
蔡泽洲; 杜明伟; 刘震宇; 吴莘玲; 李丽楠; 刘晓飞; 张祥; 陈源; 田晓莉; 陈德华
- Abstract
In order to clarify the regulation effect of planting density and chemical control on the fiber quality for direct-seeded cotton after wheat harvest, the short season cotton cultivar 'Guoxinzao 11-1' was used as the experimental material, the effects of planting density combined with growth regulator (Miantaijin) on the fiber quality of direct-seeded cotton after wheat harvest was studied in cotton growth season. The results showed that fiber length and fiber strength gradually decreased with the increasing of planting density, but the length, micronaire and strength of fiber increased with the increasing of Miantaijin application dose. The fiber located in the upper parts of canopy exhibited a higher strength under low density than that under higher density. Thus, the application of 1 170 mL/hm2 Miantaijin promoted the fiber strength in the middle and lower parts. Under medium and high density, treatment with 1 170 mL/hm2 Miantaijin application showed an optimum range of micronaire value of all cotton plant parts. In conclusion, the whole plant fiber quality was improved under treatment of 90 000 plants/hm2 combined with 1 170 mL/hm2 Miantaijin application. Moreover, the fiber micronaire value, the fiber length, strength, and maturity of the upper and lower part of the cotton plant were also improved under this treatment.
- Subjects
GROWING season; PLANT fibers; WHEAT harvesting; PLANT spacing; COTTON; GROWTH regulators; COTTON fibers; OLIVE oil
- Publication
Journal of Agricultural Science & Technology (1008-0864), 2019, Vol 21, Issue 10, p30
- ISSN
1008-0864
- Publication type
Article
- DOI
10.13304/j.nykjdb.2019.0218