This study was conducted to investigate the effects of bast fiber seedling film on rice seedling growth. In this study, indica cultivar ＇Xiangwanxian 13＇ and indica hybrid cuitivar ＇Y Liangyou 1＇ were used to inve...This study was conducted to investigate the effects of bast fiber seedling film on rice seedling growth. In this study, indica cultivar ＇Xiangwanxian 13＇ and indica hybrid cuitivar ＇Y Liangyou 1＇ were used to investigate the changes of aboveground part growth and root respiration enzyme activities of rice seedlings af- ter the application of bast fiber seedling film. The results showed that, compared with the CK, the accumulation of shoot biomass, chlorophyll content, root bleeding intensity, soluble sugar content, and nitrate nitrogen content were significantly im- proved with the application of bast fiber seedling film. In addition, the activities of malate dehydrogenas （MDH） and alcohol dehydrogenas （ADH） were higher in rice seedling roots raised with bast fiber seedling film, while there was no significant change in lactate dehydrogenase （LDH） after the application of bast fiber seedling film. However, there were no significant differences in these indexes between the two cultivars. All the results indicated that the growth and development of rice seedlings could be improved with the application of bast fiber seedling film.展开更多
为了明确除草型育秧麻地膜对秧田杂草的防控效果及对水稻的安全性,为集中育秧提供有效的杂草防控措施,本研究采用培养皿法和小区实验研究了五氟磺草胺、苄嘧磺隆、吡嘧磺隆、丙草胺四种除草剂附着于麻地膜上对稗草和水稻出苗、秧苗生长...为了明确除草型育秧麻地膜对秧田杂草的防控效果及对水稻的安全性,为集中育秧提供有效的杂草防控措施,本研究采用培养皿法和小区实验研究了五氟磺草胺、苄嘧磺隆、吡嘧磺隆、丙草胺四种除草剂附着于麻地膜上对稗草和水稻出苗、秧苗生长及杂草防控效果和水稻产量的影响。室内生物测定结果显示,24~96 h内,五氟磺草胺、苄嘧磺隆、吡嘧磺隆和丙草胺均能不同程度抑制稗草和水稻种子萌发,且对稗草种子萌发的抑制率高于水稻种子;96 h时,五氟磺草胺、苄嘧磺隆、吡嘧磺隆3种药剂高剂量处理下的稗草和水稻呈现不同程度的中毒症状,主要表现为抑制根和芽生长及鲜重降低;高剂量丙草胺下,稗草和水稻均死亡。在此基础上,2018—2020年通过田间试验研究了五氟磺草胺15 g a.i.hm^(-2)、苄嘧磺隆30 g a.i.hm^(-2)、吡嘧磺隆15 g a.i.hm^(-2)附着麻地膜时对秧田杂草的控制效果及对水稻的安全性,结果显示,除草剂附着的麻地膜对秧田杂草的防控效果比较理想,株防效达80%~90%,与对照药剂丙草胺相当;在水稻安全性方面,3种除草剂附膜30 d时,对水稻秧苗的株高和鲜重均有一定的促进作用;产量上,施药区稻谷千粒重和每公顷产量均增加,2018年增产率为0.57%~2.13%,2019年和2020年增产率分别为0.55%~1.70%和2.87%~6.21%,与对照药剂丙草胺相当。水稻育秧中可采用五氟磺草胺、苄嘧磺隆、吡嘧磺隆附着麻地膜育秧膜控制田间杂草,在合理剂量范围内对秧苗安全,不影响水稻产量,在集中育秧中应用前景广阔。展开更多
基金Supported by Scientific and Technological Innovation Project of Chinese Academy of Agricultural Sciences(ASTIP-IBFC07)Production Post of Degradable Bast Fiber Mulching Film of National Agro-Industry Technology Research System for Bast and Leaf Fiber Crops(CARS-19-E23)~~
文摘This study was conducted to investigate the effects of bast fiber seedling film on rice seedling growth. In this study, indica cultivar ＇Xiangwanxian 13＇ and indica hybrid cuitivar ＇Y Liangyou 1＇ were used to investigate the changes of aboveground part growth and root respiration enzyme activities of rice seedlings af- ter the application of bast fiber seedling film. The results showed that, compared with the CK, the accumulation of shoot biomass, chlorophyll content, root bleeding intensity, soluble sugar content, and nitrate nitrogen content were significantly im- proved with the application of bast fiber seedling film. In addition, the activities of malate dehydrogenas （MDH） and alcohol dehydrogenas （ADH） were higher in rice seedling roots raised with bast fiber seedling film, while there was no significant change in lactate dehydrogenase （LDH） after the application of bast fiber seedling film. However, there were no significant differences in these indexes between the two cultivars. All the results indicated that the growth and development of rice seedlings could be improved with the application of bast fiber seedling film.
文摘为了明确除草型育秧麻地膜对秧田杂草的防控效果及对水稻的安全性,为集中育秧提供有效的杂草防控措施,本研究采用培养皿法和小区实验研究了五氟磺草胺、苄嘧磺隆、吡嘧磺隆、丙草胺四种除草剂附着于麻地膜上对稗草和水稻出苗、秧苗生长及杂草防控效果和水稻产量的影响。室内生物测定结果显示,24~96 h内,五氟磺草胺、苄嘧磺隆、吡嘧磺隆和丙草胺均能不同程度抑制稗草和水稻种子萌发,且对稗草种子萌发的抑制率高于水稻种子;96 h时,五氟磺草胺、苄嘧磺隆、吡嘧磺隆3种药剂高剂量处理下的稗草和水稻呈现不同程度的中毒症状,主要表现为抑制根和芽生长及鲜重降低;高剂量丙草胺下,稗草和水稻均死亡。在此基础上,2018—2020年通过田间试验研究了五氟磺草胺15 g a.i.hm^(-2)、苄嘧磺隆30 g a.i.hm^(-2)、吡嘧磺隆15 g a.i.hm^(-2)附着麻地膜时对秧田杂草的控制效果及对水稻的安全性,结果显示,除草剂附着的麻地膜对秧田杂草的防控效果比较理想,株防效达80%~90%,与对照药剂丙草胺相当;在水稻安全性方面,3种除草剂附膜30 d时,对水稻秧苗的株高和鲜重均有一定的促进作用;产量上,施药区稻谷千粒重和每公顷产量均增加,2018年增产率为0.57%~2.13%,2019年和2020年增产率分别为0.55%~1.70%和2.87%~6.21%,与对照药剂丙草胺相当。水稻育秧中可采用五氟磺草胺、苄嘧磺隆、吡嘧磺隆附着麻地膜育秧膜控制田间杂草,在合理剂量范围内对秧苗安全,不影响水稻产量,在集中育秧中应用前景广阔。
