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乙烯利可以确定减少倒伏,维持或增加收获产量。1985与1986年研究了施用乙烯利比率和施用时间对玉米(Zea Mays L.)的收获产量、产量组成、倒伏与子粒品质的影响。乙烯利施于种在临近草地东北地中Pioneei杂种P_(3475)、P_(3377)和P_(3183)上。施乙烯利减少了玉米植株倒伏。P_(3377)与P_(3183)在TE时期(雄穗伸长时期)施乙烯利0.56公升/公顷者,倒伏由30％减少到9％,此比率结果使每穗少产生子粒52粒,粒重减轻7～17毫克。但是增加了收获果穗0.2～0.6个/平方米。除1986年在EE(雌穗伸长期)时施乙烯利没有影响外,增加乙烯利的施用比率,结果成线性地减少收获子粒产量。在此情况下,增施乙烯利比率,其结果是增加了每平方米收获果穗数补偿了每穗粒数与粒重的减少。1986年在TE时,两年在TE+6(雄穗伸长后6天)以及1985年在EE时施乙烯利结果是每公顷减少收获子粒产量接近1Mg(即1百万克或1千公斤)。施用乙烯利对玉米蛋白质含量,子粒的致密度和子粒易于产生破碎性有小的然面是显著的影响。施乙烯利有减少植株倒伏的作用,但它不能增加子粒产量,而且一般要减产。基于这些结果,在类似本研究的那些条件下,对栽培玉米生产者,施用一定的乙烯利,只有很小的刺激(或积极)意义。根据Zuben和Kang(1978)的估计,不管育种家怎样努力去培育抗倒伏品种,玉米茎秆倒伏年损失产量总数达5～25％。普遍认为:那些获得高产的条件:例如施高比率的氮素,高度密植,灌溉或多雨等,会促进倒伏,当发生倒伏收获子粒产量就减少(Zuben和Kang1978)。
Ethephon can determine to reduce lodging, maintain or increase harvest yield. The effects of application of ethephon rate and application time on the yield, yield components, lodging and grain quality of corn (Zea Mays L.) were studied in 1985 and 1986. Ethephon was planted on P_ (3475), P_ (3377) and P_ (3183) Pioneei hybrids in the northeastern grassland adjacent to the meadow. Ethephon reduced maize plant lodging. P3377 and P3183 decreased their uptake from 30% to 9% with ethephon 0.56 L / ha during the TE period (tassel elongation). As a result, fewer grains per ear were produced, Weight reduction of 7 to 17 mg. But increased the harvest ear 0.2 ~ 0.6 / square meter. With the exception of applying ethephon at EE (ear elongation) in 1986, increasing the ethephon application rate resulted in a linear decrease in the yield of harvested grain. In this case, the etherification ratio is increased, with the result that an increase in the number of ears harvested per square meter compensates for the reduction in grain number per grain and grain weight. The effect of ethephon at TE + 6 (6 days after tassel elongation) and TE at 1985 at two years in TE at 1986 was a reduction in harvested grain yield per hectare of nearly 1 Mg (ie 1 million grams or 1 kilogram ). The application of ethephon has a significant effect on the protein content of corn, the density of the granules, and the easy occurrence of fragmentation of the granules. Ethephon has the effect of reducing plant lodging, but it does not increase grain yield and generally reduces production. Based on these results, application of a certain amount of ethephon to cultivated corn producers has only a minor stimulus (or positive) meaning under those conditions like those in this study. According to estimates by Zuben and Kang (1978), no matter how breeders work hard to breed lodging resistant varieties, the total annual yield of corn stalk lodging is 5-25%. It is generally accepted that those conditions of high yield, such as nitrogen at a high rate, high density, irrigation or raininess, contribute to lodging and yield decreases upon lodging (Zuben and Kang 1978).