Growth and flowering in Petunia hybrida, Callistephus chinensis and Impatiens balsamina inoculated with mixed AM inocula or chemical fertilizers in a soil of low P fertility
Growth and flowering in Petunia hybrida, Callistephus chinensis and Impatiens balsamina inoculated with mixed AM inocula or chemical fertilizers in a soil of low P fertility
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DOI：
10.1016/s0304-4238(99)00105-3
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发表时间：
2000-04-28
影响因子：
4.3
通讯作者：
Adholeya, A
中科院分区：
文献类型：
--
作者：
Gaur, A;Gaur, A;Adholeya, A
三种季节性观赏植物，即矮牵牛、华海棠和凤仙花。在施用有机肥的边缘荒地上，研究了接种AM真菌的效果，并与施用化肥的处理进行了比较。在所有三种植物中，菌根接种导致植物的生殖（花数）和营养（干物质）阶段的显着改善。结果表明，与未接种的植株相比，杂交商陆的生殖生长增加了3倍，而中国苦苣苔和I.香醋施用推荐剂量的化肥产生了类似的反应。与未接种的植物相比，接种的植物产生了更大的干物质，长得更高，开花至少提前15天，并产生更多的花。此外，有一个显着增加的P和K吸收在所有三个品种的地上部。接种AM真菌比施用化肥经济30%以上。因此，建议在营养缺乏的土壤条件下在苗圃水平接种菌根，因为它是一种具有成本效益的化肥替代品，无论是部分还是全部，这使得该方法特别适合于低投入的边际农场。(C)2000 Elsevier Science B.V.保留所有权利。
Three seasonal ornamental plants, namely Petunia hybrida, Callistephus chinensis and impatiens balsamina. were tested for their response to inoculation with mixed indigenous AM culture when grown on a marginal wasteland amended with organic matter.Subsequently, the treatments consisting of AM inoculations were compared with those consisting of recommended chemical fertilizers in terms of growth response and cost economics. In all the three plant species, mycorrhizal inoculation led to marked improvement in both reproductive (number of flowers) and vegetative (dry matter) phase of the plants. P. hybrida showed a threefold increase over uninoculated plants in the reproductive growth as compared to twofold in C, chinensis and I. balsamina. Application of the recommended dose of chemical fertilizers produced a comparable response.The inoculated plants produced greater dry matter, grew taller, flowered at least 15 days earlier and produced more flowers when compared to uninoculated plants. In addition there was a significant increase in P and K uptake in shoots of all the three ornamentals. AM inoculation could be at least 30% cost economic as compared to the chemical fertilizers. Therefore, mycorrhizal inoculation is recommended at the nursery level for nutrient-deficient soil conditions because it is a cost-effective substitute for chemical fertilizers, either partly or fully, which makes the approach particularly suitable to marginal fanners with their low-input farming system. (C) 2000 Elsevier Science B.V. All rights reserved.