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首页> 外文期刊>Weed technology >Effect of Paclobutrazol and Flurprimidol on Suppression of Poa annua spp. reptans in Creeping Bentgrass (Agrostis stolonifera) Greens
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Effect of Paclobutrazol and Flurprimidol on Suppression of Poa annua spp. reptans in Creeping Bentgrass (Agrostis stolonifera) Greens

机译：多效唑和氟哌啶醇对马铃薯（Poa annua spp）的抑制作用。爬行的本特格拉斯（Agrostis stolonifera）绿中的植物

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摘要

Plant growth regulators paclobutrazol and flurprimidol were evaluated for suppression of Poa annua spp. reptans, a perennial biotype of annual bluegrass, in a creeping bentgrass green. Paclobutrazol at 0.6 kg ai/ha applied on Mar. 15, followed by 0.3 kg/ha on Apr. 29,0.6 kg/ha on Oct. 1, and 0.3 kg/ha on Nov. 12 for each of 2 yr suppressed P. annua spp. reptans 28% approximately 4 mo after the final treatment. When paclobutrazol was applied at 0.3 kg/ha in each of four applications during the same period, suppression was similar to that with the higher rate 1 and 2 mo after final treatment but declined to 7% by 4 mo. Suppression of P. annua spp. reptans from flurprimidol applied four times during each of 2 yr was 22 to 27% 1 mo after final treatment but no suppression was noted 2 mo after the final treatment. Maximum creeping bentgrass injury was less than 20% when either paclobutrazol or flurprimidol was applied in the spring. However, creeping bentgrass injury was approximately 30% in the fall when either chemical was applied in the spring and repeated in October at 0.6 kg/ha.
机译：评价了植物生长调节剂多效唑和氟哌啶醇对番石榴（Poa annua spp）的抑制作用。 reptans，一种一年生早熟禾的生物型，以bent草为生。在3月15日施用0.6千克活性成分/公顷的多效唑，随后每2年抑制P施用4月29日的0.3千克/公顷，10月1日的0.6千克/公顷和11月12日的0.3千克/公顷。年青属最终治疗后约4个月，雷普坦28％。当在同一时期的四次施用中，每批以0.3 kg / ha施用多效唑时，抑制作用与最终处理后1和2 mo较高的速率相似，但4 mo降至7％。对P. annua spp。的抑制在最终治疗后1个月，每2年施用一次氟草胺的视黄酮为22％至27％，但在最终治疗2个月后未发现抑制作用。当在春季施用多效唑或氟哌啶醇时，最大的bent生弯曲草损伤小于20％。但是，在春季施用两种化学药品并在10月份以0.6 kg / ha的剂量重复使用时，在秋季对蠕动草的伤害约为30％。

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