摘要
【目的】研究复合醇抗蒸腾剂不同喷施体积分数和次数对温室黄瓜产量、品质及水分利用效率的影响。【方法】采用双因素随机区组设计方法,复合醇抗蒸腾剂喷施次数(T)设置3水平,分别为T1(全生育期喷施1次)、T2(全生育期喷施2次)和T3(全生育期喷施3次);喷施体积分数(N)设置4水平,分别为N1(0 m L/L)、N2(0.5 m L/L)、N3(1.5 m L/L)、N4(3 m L/L),分析了复合醇抗蒸腾剂不同喷施模式对温室黄瓜植株鲜质量、叶片光合特性、黄瓜品质、水分利用效率和产量的影响。【结果】复合醇抗蒸腾剂具有促进植株生长,降低叶片蒸腾,减少植株水分散失的作用。随着喷施体积分数的升高,植株生物量先升高后降低,叶片蒸腾速率显著降低;随着喷施次数的升高,黄瓜植株生物量呈升高趋势。与喷施清水相比,体积分数为1.5 m L/L的抗蒸腾剂喷施3次,黄瓜地上部鲜质量、根鲜质量分别提高4.55%和8%,叶片蒸腾速率降低12.52%,植株耗水量降低6.09%。低等和中等体积分数的抗蒸腾剂可以显著提高黄瓜可溶性糖、可溶性蛋白质、Vc量。与喷施清水相比,体积分数为1.5 m L/L的抗蒸腾剂喷施3次时,可溶性糖、可溶性蛋白质、Vc量分别提高21.55%、14.73%、30.9%。黄瓜产量和水分利用效率随着喷施体积分数的升高而呈现先增大后降低趋势,随着喷施次数的增大而呈上升趋势;体积分数为1.5 m L/L的抗蒸腾剂喷施3次时,产量最高,与喷施清水相比提高2.9%,水分利用效率提高9.56%。【结论】综合分析,体积分数为1.5 m L/L的抗蒸腾剂喷施3次的模式效果最好,具有明显的节水增产、提高品质的作用。
【Objective】Foliage application of androgen is able to reduce plant transpiration and the objective of this paper is to understand how different applications impacted the yield and quality of greenhouse cucumber, as well as the water use efficiency（WUE）.【Method】The experiment examined the impact of volumetric fraction of the compound as well as how it was applied over the growing season on the yield and WUE of the plant. We considered four volumetric fractions： N1（0 mL/L）, N2（0.5 mL/L）, N3（1.5 mL/L）, N4（3 mL/L）, with each being applied either once（T1）, or twice（T2） or three times（T3） to the cucumber over its growing season. During the experiment, we measured the fresh weight, photosynthetic characteristics, fruit quality, WUE and yield of the cucumber.【Result】In all treatments, the compound was found capable of promoting plant growth and reducing transpiration. With the increase in the volumetric fraction, the crop biomass increased first and then declined,while the transpiration decreased monotonically; applying the compound in several times over the growth season increased the crop biomass. It was additionally found that low to moderate volumetric fractions significantly increased soluble sugar, soluble protein and the Vc content in the cucumber compared to the CK-spraying just water. For example, when the volumetric fraction was 1.5 mL/L, applying it in three times within the growing season increased soluble sugar, soluble protein and Vc content by 21.55%, 14.73% and 30.9% respectively. With the volumetric fraction increasing, both yield and WUE increased first and then declined, while under the same volumetric fraction, applying the compound in several times increased both yield and WUE. The results revealed that at volumetric fraction of 1.5 mL/L and applying it in three times was most effective, increasing the yield by 2.9%and WUE by 9.56% compared to the CK.【Conclusion】Our experimental results showed that the way of applying androgen affected crop growth and
作者
陈怡昊
李波
丰雪
姚名泽
魏新光
赵子龙
解影
CHEN Yihao;LI Bo;FENG Xue;YAO Mingze;WEI Xinguang;ZHAO Zilong;XIE Ying(Shenyang Agriculture University, Shenyang 110866, China)
出处
《灌溉排水学报》
CSCD
北大核心
2018年第6期9-15,共7页
Journal of Irrigation and Drainage
基金
辽宁省自然科学基金项目(2015020770)
关键词
温室黄瓜
抗蒸腾剂
光合特性
品质
水分利用效率
产量
greenhouse cucumbers
anti-transpiration agent
photosynthetic characteristics
quality
water use efficiency
output
