植物生长调节剂、叶面肥对常规谷和杂交谷的防早衰效应比较  

Plant Growth Regulators and Foliar Fertilizer: Premature Senescence Resistance Effects on Conventional Millet and Hybrid Millet

作　　者：麻慧芳[1] 杨成元[1] 史关燕[1] 陈瑛[1] 王宏丽[1] 宋健[1] 王静华[1] 史根生[1] 

机构地区：[1]山西省农业科学院经济作物研究所,山西汾阳032200

出　　处：《农学学报》2016年第11期8-13,共6页Journal of Agriculture

基　　金：山西省农科院科技攻关项目"优质杂交谷抗早衰的生理探索研究"(YGG1411);现代农业产业技术体系专项资金项目"国家谷子糜子产业技术体系汾阳综合试验站"(CARS-07-12.5-B5);国家科技支撑计划项目"春谷晚熟区优质高产高效技术集成与示范"(2014BA07B01-03)

摘　　要：为解决实际生产中常规谷和杂交谷生育后期叶片早衰的现象,选用常规谷‘晋谷21号’和杂交种品系‘4A/H51’,以清水为对照,喷施8种植物生长调节剂和3种叶面肥,通过测定叶绿素浓度值、光合速率及主要农艺性状等,研究不同药剂对不同谷子的生理指标和农艺性状的影响变化。结果显示:在生育后期喷施海绿素、植物动力2013和根旺3种药剂,都能有效提高叶片的叶绿素含量、提高叶片的光合速率,同化物的运输和分配得到有效调节。和对照比较,杂交种的增长幅度高于常规品种,起到了有效防治早衰的作用。海绿素能使顶叶明显比对照宽,根旺、植物动力2013能增粗鞘茎,植物动力2013等能降低株高等等,这些都符合当前谷子生产研究的需要。可见,植物生长调节剂和叶面肥的利用可以解决谷子生产上遇到的早衰问题,特别是对现在大面积推广的杂交谷子效果更好。The aim is to solve leaf premature senescence of conventional millet and hybrid millet at latergrowth stage in practical production. The conventional millet‘Jingu 21＇and the hybrid strain‘4A/H51＇wereused as materials. Taking water as the control, 8 plant growth regulators and 3 foliar fertilizers were sprayed.The chlorophyll concentration, photosynthetic rate and main agronomic traits were detected, and the effects ofdifferent agentia on physiological and agronomic indexes of different millet varieties were studied. The resultsshowed that spraying Sea Chlorophyll, Power Plants 2013 and Genwang could improve chlorophyll content andincrease photosynthetic rate. The transport and distribution of assimilation substance was effectively regulated.Compared with the control, the increasing extent of hybrid millet was higher than that of conventional millet,indicating that the agentia could effectively control premature senescence. Sea Chlorophyll enabled parietallobe width significantly wider than the control, Genwang and Power Plants 2013 could thicken sheath stem,Power Plants 2013 could reduce plant height and so on, which met the current need of millet productionresearch. Thus, the utilization of plant growth regulators and foliar fertilizers can solve the problem ofpremature senescence in millet production, especially benefit the large-scale promotion of hybrid millet.

关 键 词：谷子 植物生长调节剂 叶面肥 光合速率 叶绿素浓度 防早衰 

分 类 号：S3[农业科学—农艺学]