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- Title
塑型剂对棉花农艺性状及产量品质的影响.
- Authors
李江余; 赵强; 吴雪琴; 马春梅; 任若飞; 许豆豆; 田阳青
- Abstract
【Objective】 To compare the effects of different plasticizers on agronomic traits, yield and quality of cotton in the hope of providing a theoretical basis for selecting reasonable plasticizers.【Method】 Cotton variety Xinluzao 67 was taken as testing material, three kinds of plasticizers were selected and applied twice in the full bud stage (June 26) and early flowering stage (July 13) according to the application method before manual topping, two doses were set as T1 flumetralin 70 mL /667m², T2 hydroxyl-eniotriazole 12 mL /667m², T3 prohexadione calcium 15 g/667m² and control (CK) mepiquat-chloride 5.5g/667m².【Results】 The results showed that prohexadione calcium had the best inhibitory effect on the plant height elongation, while the inhibitory effect of flumetralin and hydroxyl-eniotriazole on the plant height was slightly weaker.Compared with the control, the plant height was 7.20%, 5.90% and 4.36% higher in the treatment offlumetralin, hydroxyl-eniotriazole and mepiquat-chloride.The height-width ratio of flumetralin could promote the compactness of cotton plants, but it was not significantly different from those of flumetralin and hydroxyl-eniotriazole.The number of moss on fruit branch of cotton increased by 9.51 and 9.45, respectively, which was higher than that of flumetralin 9.10, and the number of moss was increased by flumetralin and prohexadione.The yield and quality results showed that the highest boll weight was 5.51 g in the treatment of prohexadione, which was increased by 0.03 g compared with CK, and the treatment of hydroxyl-eniotriazoledecreased by 0.49 g compared with CK.The seed cotton yield of all treatments showed no significant difference compared with CK (P>0.05), among which, the seed cotton yield of prohexadione was the highest, reaching 7,164.04kg/hm², which was increased by 728.69 kg/hm² compared with CK. There was no difference in lint between the treatments and the CK (P<0.05).There were no differences in Micronaire value, maturity, uniformity, specific strength, fiber length and elongation between test groups and CK (P<0.05).The Micronaire value of hydroxyl-eniotriazole and prohexadionecalcium was standard grade, and the grade of flumetralin and CK was C.【Conclusion】 Different moulding agents have different effects on shaping agronomic traits of cotton, but all of them can reduce plant height and compact plant type to a certain extent. Higher agronomic traits in cotton strains treated with Prohexadione calcium were similar to that of mepiquat-chloride and the yield has a certain increase. Prohexadione calcium can be selected as the best moulding agent for cotton at flowering and bud stage.
- Publication
Xinjiang Agricultural Sciences, 2022, Vol 59, Issue 10, p2352
- ISSN
1001-4330
- Publication type
Article
- DOI
10.6048/j.issn.1001-4330.2022.10.002