摘要
为探讨不同栽培方式对寒地水稻生长发育和穗部性状的影响,以寒地水稻龙粳31号和龙粳46为试验材料,于2017~2018年在大田条件下,设置4种不同栽培方式,即无肥区处理(BT)、当地农民栽培(FP)、高产栽培(HY)和超高产栽培(SHY),通过大田试验,研究了不同栽培方式下水稻株高、茎蘖动态、成穗率、叶片SPAD值、穗长、穗重及枝梗数的变化。结果表明,与FP相比,不同栽培方式下两品种的株高、茎数和成穗率的变化均表现为SHY>HY>FP>BT。不同栽培方式下两品种的穗长和单穗重分别在HY和SHY下最大。一次枝梗数表现为:下部>中部>上部,二次枝梗数则表现为:中部>下部>上部,且两者的变化趋势均表现为SHY>HY>FP>BT。HY和SHY下一次、二次枝梗总数分别提高9.2%~16.3%和13.2%~30.8%。综上所述,高产和超高产栽培方式下,水稻的生长发育和穗部性状明显优于当地农民栽培,为进一步获得高产提供了保障。
In order to explore the effects of different cultivation methods on the growth and development of panicles in coldland,the cold rice varieties Longjing 31 and Longjing 46 were used as experimental materials,and four different cultivation methods were set up,namely no fertilizer treatment(BT),local farmers cultivated(FP),high-yield cultivation(HY)and super-high-yield cultivation(SHY).Through field experiment,the plant height,stem dynamics,ear formation rate,leaf SPAD value,ear length and ear of rice under different cultivation methods were studied.The results showed that compared with FP,the changes of plant height,stem number and panicle rate of the two varieties under different cultivation methods were SHY>HY>FP>BT.The ear length and single ear weight of the two varieties were the highest under HY and SHY,respectively.The number of branches was as follows:lower>middle>upper,and the number of secondary branches was:middle>lower>upper,and the trend of both showed SHY>HY>FP>BT.The total number of next and second branches of HY and SHY increased by 9.2%~16.3%and 13.2%~30.8%,respectively.In summary,under the high-yield and super-high-yield cultivation methods,rice growth and panicle traits were significantly better than local farmers,which would provide a guarantee for further high yield.
作者
郭晓红
徐令旗
胡月
姜红芳
兰宇辰
王鹤璎
Guo Xiaohong;Xu Lingqi;Hu Yue;Jiang Hongfang;Lan Yuchen;Wang Heying(College of Agronmy,Heilongjiang Bayi Agricultural University/Heilongjiang Provincial Key Laboratory of Modern Agricultural Cultivation and Crop Germplasm Improvement,Daqing 163319)
出处
《黑龙江八一农垦大学学报》
2020年第2期1-9,共9页
journal of heilongjiang bayi agricultural university
基金
国家重点研发计划(2016YFD0300104)
黑龙江八一农垦大学青年创新人才项目(CXRC2017001)
黑龙江八一农垦大学科研团队平台支持计划(TDJH201802)。
关键词
水稻
栽培方式
生长发育
穗部性状
寒地
rice
cultivation method
growth and development
panicle traits
