Effects of Bacillus subtilis on Above-ground Growth and Chlorophyll Content of Myrciaria cauliflora Berg
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摘要: 通过盆栽试验，研究不同剂量的枯草芽孢杆菌Bacillus subtilis对嘉宝果Myrciaria cauliflora Berg实生苗地上部生长量和叶绿素含量的影响。结果表明：枯草芽孢杆菌在一定程度上对嘉宝果的株高、茎粗、冠幅、各主枝新梢数、各主枝最长新梢以及叶绿素含量均有促进作用。其中，每盆3 g的枯草芽孢杆菌对嘉宝果的促生作用最为显著。栽培生产中将枯草芽孢杆菌剂量范围控制在每667 m2 900~1 800 g对促进嘉宝果生长发育最为适宜。Abstract: Pot experiments were conducted to study the effects of varied doses of Bacillus subtilis applied in the soil on the above-ground growth and chlorophyll content of Myrciaria cauliflora Berg that grew on it. The results showed all the tested applications of the microbial material increased the plant height, stem diameter, crown width, number of new shoots on main branch, longest main branch and chlorophyll content of M. cauliflora over control. When 3 g of B. subtilis was added to the soil in a pot, the most significant effects were observed. It was postulated that 900 to 1 800 g per acre of the application in the field would deliver the most desirable effect for M. cauliflora cultivation.
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Key words:
- Myrciaria cauliflora Berg /
- Bacillus subtilis /
- above-ground /
- chlorophyll content
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图 1 不同剂量枯草芽孢杆菌对嘉宝果叶绿素含量的影响
注：同色柱标有不同小写字母的表示组别间差异显著(P＜0.05)。
Figure 1. Effect of B. subtilis application dose on chlorophyll content of M.canliflora
表 1 不同剂量的枯草芽孢杆菌对嘉宝果地上部的影响
Table 1. Effect of B. subtilis application dose on above-ground growth of M. cauliflora
枯草芽孢杆菌剂量
/(mL·盆-1)株高
/cm茎粗
/mm冠幅
/cm各主枝新梢数 各主枝最长新梢
/cm1 29.33±1.45 b 8.70±0.46 bc 30.27±1.39 b 6.01±0.52 bc 8.13±0.64 b 2 32.00±1.15 b 9.11±0.43 b 31.20±1.42 b 6.87±0.66 bc 10.00±0.58 ab 3 37.33±1.45 a 11.14±0.48 a 36.03±1.54 a 11.57±0.89 a 10.77±1.01 a 4 32.33±1.45 b 9.92±0.50 ab 32.93±1.53 ab 7.17±0.73 b 10.20±0.72 ab 5 31.33±1.45 b 8.83±0.38 bc 29.93±1.43 b 6.43±0.58 bc 9.47±0.73 ab 0(CK) 24.00±1.15 c 7.75±0.37 c 25.23±1.11 c 5.00±0.58 c 5.20±0.55 c 注：多重均值比较采用LSD方法；同列数据后无相同小写字母者表示差异显著(P＜0.05)。 
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