摘要
探索红树莓根蘖的调控措施,对于红树莓根蘖扩繁、快速增加树莓新建园的新梢密度、促进早期丰产,具有重要意义。以‘海尔特兹’红树莓为试材,秋季果刚现蕾时,选取当年春季栽植的,株距为0.5m,行距为2m的红树莓品种6行。其中3行进行剪除花序处理,剩余3行不剪除花序作对照,每行连续选30株为1个小区,研究剪除花序对根蘖数量及根蘖枝的生长、根系活力、根系内含物、叶绿素荧光特性的影响。结果表明:剪除花序处理与对照每株根蘖枝的平均数量分别为7.97株和5.06株,差异显著;剪除花序处理与对照根蘖枝的基茎粗度没有显著差异;10月5日剪除花序处理与对照根蘖枝的平均高度分别为72.06cm和59.03cm,差异显著;剪除花序处理与对照的根系活力分别为86.26μg·g-1·h-1和54.17μg·g-1·h-1,差异显著;剪除花序处理与对照的根系可溶性蛋白质含量分别为10.66mg/g和8.61mg/g,差异显著;剪除花序处理与对照的根系可溶性糖含量分别为1.64%和0.98%,差异显著;剪除秋季花序增加了最大荧光(Fm)和PSⅡ最大光能转换效率(Fv/Fm),降低了最小荧光(Fo)。剪除花序能够显著增加红树莓叶片光合能力,从而增加根蘖的数量和质量。
It＇s important implications to explore the control managements of the red raspberry root suckers for the propagation of red raspberry root sucker,increasing the shoot density rapidly in new raspberry orchard,promoting the early yield.Raspberry of‘Heritage＇was used as test materials,at the period of bud appearance in the autumn,6lines of red raspberry cultivar which were planted in the spring were selected as materials,the spacing in the rows was 0.5mand the spacing between rows was 2m.The plants in 3lines were as cutting off inflorescence treatment,and that the other 3lines were as control,which were not cutting off inflorescence.30 successive strains,in each line were selected as one block.The effect of cutting off the inflorescence on root sucker number and root sucker growth,root vigor,substances in roots,the characteristics of chlorophyll fluorescence were studied.The results showed that,the average numbers of root suckers of the cutting off inflorescences and control were 7.97 and 5.06 respectively,and there existed significant difference between the two treatments.There existed no significant difference of the stem diameters between the two treatments at the same period.The average heights of the root sucker of the cutting off inflorescences and control were 72.06 cm and 59.03 cm respectively on October 5^th,and there existed significant difference between the two treatments.The root vigor of the cutting off inflorescences and control were 86.26μg·g^-1·h^-1 and 54.17μg·g^-1·h^-1 respectively,and that of cutting off inflorescences was very significantly higher than that of control.The contents of soluble protein in roots of the two treatments were 10.66mg/g and 8.61mg/g respectively,and that of cutting off inflorescences was significant higher than that of control.The contents of soluble sugar in roots of the two treatments were 1.64% and0.98%respectively,and that of cutting off inflorescences was very significant higher than that of control.Cutting off the autumn inflorescence increased the maxi
出处
《北方园艺》
CAS
北大核心
2015年第23期26-30,共5页
Northern Horticulture
关键词
红树莓
花序
根系活力
根蘖
red raspberry
inflorescences
root activity
root sucker
