蓖麻杂交种耐盐碱能力评价试验初报

为了明确混合盐碱胁迫对蓖麻产量及其他农艺性状的影响，评价不同蓖麻杂交种耐盐碱胁迫的能力，为盐碱地蓖麻栽培提供依据，选择‘淄蓖麻7号’、ZB-6和‘淄蓖麻8号’3个蓖麻杂交品种（组合），采用不同浓度的人工混合盐碱土壤进行适应性鉴定。结果表明：3个杂交蓖麻品种在0.2%~0.6%的土壤含盐量的条件下均能正常生长，但高浓度的混合盐处理对蓖麻的生长有显著的抑制作用。盐碱胁迫造成蓖麻株高降低、茎秆变细、叶片变小、主茎穗及主茎分枝穗蒴果数量变少、单株产量降低。方差分析表明：不同的土壤含盐量对蓖麻产量的影响极为明显，在0%、0.2%、0.4%和0.6%盐碱处理区，‘淄蓖麻7号’、‘淄蓖麻8号’和ZB-6的平均产量分别为4276.95、4146.45、3613.80、2678.85 kg/hm2。LSD法多重比较表明，各处理间产量差异均达极显著水平。

Castor Hybrids Salinity Capacity Evaluation Preliminary Report

In order to define the effects of mixed salinity stress on the castor yield and other agronomic characters, the ability of resistance salt and alkali among different castor hybrids providing a basis for the saline-alkali castor cultivation. The adaptive identification on ‘Zibo Castor No.7’, ZB-6 and ‘Zibo Castor No.8’ used different concentrations of artificial mixing saline soils. The results showed that: the three hybrids of castor were normal growth in the soil with 0.2%-0.6% mixed salinity, but high levels of mixed soil significantly inhibited the growth of the castor. The plant appearance of the performance for grow shorter, stalk thinner, smaller leaves, capsule number fewer and lower yield per plant caused by saline-alkali stress on castor. Analysis results of variance showed that, the different soil salinity to the influence of castor yield was very obvious. The average yield of ‘Zibo Castor No.7’, ‘Zibo Castor No.8’ and ZB-6 were 4276.95, 4146.45, 3613.80, 2678.85 kg/hm2, planted in 0%, 0.2%, 0.4% and 0.6% salinity treatment area respectively. LSD method for multiple comparisons showed that, the yield differences among treatments were a highly significant level.