根据BBCH和Kuperman作物生长尺度,植物生长调节剂在高粱冠层的最佳施用时间

O. Prysiazhniuk, L. Storozhyk, M. Humentyk, Anatolij Sviridov, L. Svyrydova
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引用次数: 1

摘要

该研究的相关性是由于选择最佳尺度来确定植物发育阶段的问题,以便确定高粱植物护理的最佳农艺操作时机。本试验的目的是在作物发育第21、31、37 (BBCH)和第III、IV、VI-VII (Kupperman scale)阶段使用效率较高的植物生长调节剂。本研究采用现场和实验室研究方法。本试验在乌克兰森林草原地带对两种高粱品种——双色高粱和糖精高粱进行了PGR处理。根据Kuperman量表(后者是基于对I-VII期CGS的综合形态生理分析),在BBSH第21和31期叶面施用PGR (0.5 l/ha)的效果比第III和第IV期好2.8和4.9%。与第三期施用相比,微期21 (BBCH)叶面施用PGR促进了高粱品种的更快发育和增产(敖德斯吉205为0.19 t/公顷,兰59为0.12 t/公顷)(根据Cooperman的研究)。两种糖高粱杂交种在微期21 (BBCH)施用PGR的效果与期3 (Kuperman)相似:Dovista品种生物量增产1.6 t/ha,干物质增产0.7 t/ha,茎汁含糖量增产0.0%,格力佛品种增产1.6 t/ha,增产0.7 t/ha,增产0.2%。因此,建议采用BBCH尺度施用PPP, PPP叶面施肥应在第21天和第31天进行。这项工作的实用价值在于选择高粱作物的生长发育规模和叶面施肥的时机,这是最适合乌克兰的条件。该研究从生产中植物叶面营养的实际角度出发,为学生和科学家对植物生长发育规模的理论评估提供了有益的依据。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Optimal time of plant growth regulator application to Sorghum canopy according to BBCH and Kuperman crop growth scales
The relevance of the study is due to the problem of choosing the optimal scale for identifying the phases of plant development in order to determine the best timing of agronomic operations for sorghum plant care. The aim of the experiment was to use a plant growth regulator with higher efficiency during the stages of crop development 21, 31, 37 (BBCH) and III, IV, VI-VII on the Kupperman scale. Field and laboratory research methods were used in the study. The experiment was conducted in the Forest-Steppe zone of Ukraine on two sorghum varieties - Sorghum bicolor and Sorghum saccharatum, which were treated with PGR. Foliar application of PGR (0.5 l/ha) at 21 and 31 stages of BBSH provides 2.8 and 4.9% better results than at III and IV stages according to the Kuperman scale (the latter is based on a comprehensive morphophysiological analysis to identify I-VII CGS). Foliar application of PGR at microstage 21 (BBCH) contributed to faster development and increased grain yield in sorghum varieties (0.19 t/ha in Odesskyi 205 and 0.12 t/ha in Lan 59) compared to application at stage III (according to Cooperman). A similar effect of PGR application at microstage 21 (BBCH) compared to stage III (Kuperman) was recorded for two sugar sorghum hybrids: in Dovista variety, the increase in biomass yield was 1.6 t/ha, dry matter - 0.7 t/ha, and sugar content in stem juice - 0.0%, while in Gulliver variety these indicators were 1.6 t/ha, 0.7 t/ha and 0.2%, respectively. Thus, it is recommended to use the BBCH scale for the application of PPP, and foliar fertilization with PPP should be carried out at 21 and 31 days. The practical value of the work lies in the selection of the scale of growth and development of sorghum crops and the timing of foliar fertilization, which is optimal for the conditions of Ukraine. The study is useful from the practical point of view of foliar nutrition of plants in production and as a theoretical assessment of the scale of plant growth and development for students and scientists.
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