摘要
【目的】探明种植密度与蓖麻主穗性状及种子性状的相关性,为合理制定蓖麻种植密度提供参考。【方法】通过蓖麻不同种植密度试验,研究蓖麻主穗性状和种子性状对不同密度的响应。【结果】蓖麻种植密度与主穗结蒴果序节位数、主穗结蒴果序节位百分率、主穗蒴果数、主穗种子产量、主穗种粒数和种子长度等指标存在显著相关性(P<0.05);主穗种子产量与主穗结蒴果序节位数、主穗结蒴果序节位百分率、主穗蒴果数、主穗蒴果单果重和主穗种粒数等指标存在极显著相关性(P<0.01);主穗种粒数与主穗结蒴果序节位数、主穗结蒴果序节位百分率、主穗蒴果数和主穗种子产量等指标存在极显著相关性(P<0.01),与主穗蒴果单果重存在显著相关性(P<0.05)。蓖麻种植密度与主穗性状和种子性状指标的回归方程符合二次曲线规律。【结论】一定范围内,蓖麻种植密度越大,主穗结蒴果序节位百分率、主穗结蒴果节位数、主穗蒴果数、主穗种粒数和种子长度等指标越大,主穗宽横径、主穗种子产量指标也一定程度地增加。
【Objective】The correlation between planting density with main ear traits and seed traits of castor is explored.It provides a reference for rational formulating planting density of castor.【Method】The castor experiments with different planting densities are conducted to study the response of main ear traits and seed traits to different density of castor.【Result】There is a significant correlation(P<0.05)between planting density and main ear fruiting capsule node number,main ear fruiting capsule node percentage,main ear capsule number,main ear seed yield,main ear seed number and seed length.There is a very significant correlation(P<0.01)between main ear seed yield and main ear fruiting capsule florescence node number,main ear fruiting capsule node percentage,main ear capsule number,main ear capsule single fruit weight and main ear seed number.There is a very significant correlation(P<0.01)between main ear seed number and main ear fruiting capsule florescence node number,main ear fruiting capsule florescence node percentage,main ear capsule number and main ear seed yield,and significant correlation(P<0.05)with main ear capsule single fruit weight.The regression equation of planting density with main ear traits and seed traits indexes is accordance with quadratic curve.【Conclusion】Within a certain range,the more the castor planting density is,the more the indexes of main ear fruiting capsule node florescence node percentage,main ear fruiting capsule node number,main ear capsule number,main ear seed number and seed length are,and the indexes of main ear transverse diameter and main ear seed yield increase to a certain extent.
作者
金方伦
罗朝斌
罗会贤
王贤玉
吴康云
JIN Fanglun;LUO Chaobin;LUO Huixian;WANG Xianyu;WU Kangyun(Institute of Sericulture,Guizhou Academy of Agricultural Sciences,Guiyang,Guizhou 550006,China)
出处
《贵州农业科学》
CAS
2021年第2期17-22,共6页
Guizhou Agricultural Sciences
关键词
蓖麻
种植密度
主穗性状
种子性状
回归分析
castor
planting density
main ear traits
seed traits
regression analysis
