当前位置: 首页 > 文章 > 保水剂对小麦生长及生理特性的影响 干旱地区农业研究 2011,29 (3) 133-137
Position: Home > Articles > Effects of water-retaining agent on growth and physiological characteristic of winter wheat Agricultural Research in the Arid Areas 2011,29 (3) 133-137

保水剂对小麦生长及生理特性的影响

作  者:
杨永辉;武继承;吴普特;管秀娟;何方
单  位:
山东省昌乐县五图街道办事处;河南省农业科学院植物营养与资源环境研究所;西北农林科技大学
关键词:
保水剂;矮抗58;作物生长;叶片相对含水量;光合作用
摘  要:
为探明保水剂施用后对耐旱品种矮抗58生长及光合作用等的作用特征,通过大田试验,测定了保水剂不同用量(0,30,60,90 kg/hm2)的土壤水分、株高、叶面积、叶片相对含水量及光合特征等。结果表明:保水剂不但提高了各生育期表层土壤含水量,而且促进了20 cm以下土层土壤水分的提高。在拔节期,随保水剂用量的增加,叶片相对含水量越高。但随生育期的推进,叶片相对含水量有所降低,而均显著高于对照。株高以30 kg/hm2处理效果最佳,而叶面积不同生育期以60 kg/hm2处理增加最为显著。同时,在各生育期,矮抗58的光合速率表现为:30kg/hm2>90 kg/hm2>60 kg/hm2>CK(P<0.05);蒸腾速率表现为:30 kg/hm2>CK>90 kg/hm2>60 kg/hm2;水分利用效率以90 kg/hm2处理较对照增加最显著。而最终的小麦生物量和产量均以60 kg/hm2处理最高。
译  名:
Effects of water-retaining agent on growth and physiological characteristic of winter wheat
作  者:
YANG Yong-hui1,WU Ji-cheng1,WU Pu-te2,GUAN Xiujuan3,HE Fang1(1.Institute of Plant Nutrition & Resource Environment,He'nan Academy of Agricultural Sciences,Zhengzhou,He'nan 450002,China;2.Northwest A & F University,Yangling,Shaanxi 712100,China;3.Wutu Sub-district Office in Changle County,Changle,Shandong 262400,China)
关键词:
water-retaining agent;Aikang-58;crop growth;leaf relative water content;photosynthesis
摘  要:
In order to investigate the characteristics of growth and photosynthetic parameters of winter wheat Aikang-58,a field trial was carried out to study the effect of water-retaining agent(0,30,60,90 kg/hm2) on soil moisture,height,leaf area,leaf water potential and photosynthetic characteristics.The results indicated that moisture increased not only in top soil,but also in 20 cm deep soil after application of water-retaining agent.At jointing stage,the leaf relative water content increased with the addition of water retaining-agent.While with the advance of growth stage,leaf relative water content decreased,but significantly higher than the CK.Plant height of wheat with 30 kg/hm2 of water-retaining agent was the highest,while the leaf area of wheat with 60 kg/hm2 of water-retaining agent at different growth stages was higher than other treatments.What's more,in the growth period,the photosynthetic rate of winter wheat showed: 30 kg/hm2 > 90 kg/hm2 > 60 kg/hm2 > CK(P<0.05),while transpiration rate showed: CK,30 kg/hm2 > 60 kg/hm2,90 kg/hm2,and the water use efficiency of wheat with 90 kg/hm2 of water-retaining agent was increased significantly compared with other treatments.However,the biomass and yield of wheat with 60 kg/hm2 of water-retaining agent was the highest.

相似文章

计量
文章访问数: 10
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊