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Evaluation of eggplant rootstocks for grafting eggplant to improve fruit yield and control bacterial wilt disease
European Journal of Plant Pathology ( IF 1.8 ) Pub Date : 2021-05-28 , DOI: 10.1007/s10658-021-02305-9
Sadanand Kumbar , C Narayanankutty , P Sainamole Kurian , U Sreelatha , Satyaprakash Barik

Bacterial wilt caused by Ralstonia solanacearum is a major devastating soil-borne disease impeding eggplant cultivation worldwide. The present investigation was conducted to recognize and assess bacterial wilt resistant rootstocks among Solanum melongena (Haritha, Surya, SM 1, SM 2, SM 3, SM116, and SM 398), Solanum torvum (St TNAU 1 and St KAU 1), and Solanum sisymbrifolium (SS 1) for vigor, yield and qualitative traits of ‘Green Long Hybrid’ scion through grafting. The artificial inoculation method as well as the sick plot method of bacteria wilt screening were adopted. The root dip method of artificial inoculation was found to be the most reliable method as compared to media drenching and stem inoculation methods. All the rootstocks except Solanum sisymbrifolium possessed a high degree of bacterial wilt resistance (in artificial as well as sick plot conditions). Maximum plant spread, stem girth, number of primary branches, yield per plant (6.69 kg), number of fruits per plant (94.80), fruit length (22.22 cm), root length (63.65 cm), and root spread (87.05 cm) were exhibited by Green Long Hybrid scion when grafted onto Solanum melongena cv. Haritha rootstock. Taller plants with high fruit girth (10.97 cm) and average fruit weight (78.00 g) of scion were recorded on SM 116 rootstock. The highest dry matter content (11.12%) and total phenolic content (113.30 mg/100 g) of fruits were observed in scion when SM 398 and SM 3 were used as rootstocks, respectively. Overall, ‘Haritha’ cultivar was found to be the best rootstock for grafting in the current study. Thus, grafting technology can be effectively used for the control of bacterial wilt as well as for acquiring higher yield in eggplant.



中文翻译:

茄子砧木嫁接茄子提高果实产量和防治青枯病的评价

由青枯病菌引起的青枯病是一种主要的破坏性土传病害,阻碍了全球茄子的种植。本研究旨在识别和评估茄属植物(Haritha、Surya、SM 1、SM 2、SM 3、SM116 和 SM 398)、茄属植物(St TNAU 1 和 St KAU 1)中抗青枯病的砧木,以及龙葵(SS 1) 'Green Long Hybrid' 接穗嫁接的活力、产量和质量性状。采用人工接种法和青枯病筛选病区法。与培养基浸渍和茎接种方法相比,人工接种的浸根方法被发现是最可靠的方法。除Solanum sisymbrifolium外的所有砧木都具有高度的青枯病抗性(在人工和病区条件下)。最大植株蔓延、茎围、主枝数、​​单株产量 (6.69 kg)、每株果实数 (94.80)、果实长度 (22.22 cm)、根长 (63.65 cm) 和根蔓延 (87.05 cm)当嫁接到Solanum melongena上时,由 Green Long Hybrid 接穗展示简历。Haritha 砧木。在 SM 116 砧木上记录了具有高果实周长 (10.97 cm) 和平均单果重 (78.00 g) 的较高植株。当 SM 398 和 SM 3 分别用作砧木时,接穗中的果实干物质含量最高(11.12%)和总酚含量(113.30 mg/100 g)。总的来说,在目前的研究中,'Haritha' 品种被认为是最好的嫁接砧木。因此,嫁接技术可以有效地用于控制茄子的青枯病和获得更高的产量。

更新日期:2021-08-03
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