THE EFFECTS OF LODGING AND A PACLOBUTRAZOL - CHLORMEQUAT CHLORIDE MIXTURE ON THE YIELD AND QUALITY OF OILSEED RAPE
THE EFFECTS OF LODGING AND A PACLOBUTRAZOL - CHLORMEQUAT CHLORIDE MIXTURE ON THE YIELD AND QUALITY OF OILSEED RAPE
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DOI：
10.1111/j.1744-7348.1990.tb06609.x
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发表时间：
1990-04-01
影响因子：
2.6
通讯作者：
WRIGHT, ITJ
中科院分区：
文献类型：
--
作者：
BAYLIS, AD;WRIGHT, ITJ
油菜倒伏与植物生长调节剂混配之效应。阿丽亚娜进行了研究，在三个领域的实验。自然和人工诱导的倒伏处理不同的实施时间和严重程度进行了比较，支持控制。将多效唑和矮壮素的混合物作为喷雾剂或作为多效唑颗粒剂施用，然后立即施用矮壮素喷雾剂。1987年，严重的倒伏处理使产量下降了52%。产量处罚随实施住宿的时间而变化。产量与志愿者在倒伏作物下从棚下种子生长的地面覆盖物呈负相关。1988年，两项试验表明倒伏作物的发病率增加，种子产量和质量下降。产量下降与倒伏的严重程度有关。倒伏降低了油的含量和硫代葡萄糖苷水平增加。PGR处理减少了倒伏，并将产量保持在与支持的对照处理没有显著差异的水平。来自PGR处理的和对照地块的种子中的油含量也相似。在一个实验中，PGR处理的种子中的硫代葡萄糖苷水平与对照水平相似，在另一个实验中，与对照和人工倒伏的地块中的硫代葡萄糖苷水平居中。结果进行了讨论，在使用PGRs，以防止倒伏的“双零”品种的油菜，和潜在的损失，从使用地面车辆应用农药开花后。
The effects of lodging and a plant growth regulator mixture on oilseed rape cv. Ariana were studied in three field experiments. Natural and artificially induced lodging treatments varying in time of imposition and severity were compared to a supported control. A mixture of paclobutrazol and chlormequat chloride was applied either as a spray or as paclobutrazol granules followed immediately by a chlormequat chloride spray. In 1987, severe lodging treatments reduced yield by up to 52%. Yield penalties varied with the time at which lodging was imposed. Yield was inveresely correlated with the ground cover of volunteers growing from shed seed under lodged crops. In 1988, two experiments showed increased incidence of disease and decreases in seed yield and quality in lodged crops. Yield reductions were related to the severity of lodging. Lodging decreased oil contents and increased glucosinolate levels. PGR treatments reduced lodging and maintained yield at a level not significantly different to a supported control treatment. Oil contents were also similar in seed from PGR treated and control plots. Glucosinolate levels in PGR treated seed were similar to control levels in one experiments and intermediate to those from control and artificially lodged plots in another experiment. The results are discussed in relation to the use of PGRs to prevent lodging in ''double zero'' varieties of oilseed rape, and the potential losses from using ground vehicles to apply pesticides after flowering.