抗南方根结线虫不同番茄砧木田间综合评价

选用9份番茄砧木与中杂9号番茄嫁接,在日光温室内比较了其对植株抗性、生长发育及果实品质等的影响。结果表明:041-373、031D158、Genaros、Baofa009和Trs-401砧木苗期及田间对南方根结线虫的抗性鉴定均表现为抗病;与中杂9号自根苗对照相比,各砧木嫁接对植株长势、产量、单果质量等均无显著影响;不同砧木材料对番茄果实VC含量影响不明显,但可以影响果实可溶性蛋白、可溶性糖含量及糖酸比,其中Eldorado砧木嫁接可显著降低果实可溶性糖含量及糖酸比,而041-373及Trs-401砧木嫁接则可显著提高果实可溶性糖含量及糖酸比。综合考虑不同砧木抗性表现及对果实品质等的影响,认为生产上可以将041-373、031D158、Genaros、Baofa009、Trs-401等5份砧木材料作为抗南方根结线虫砧木用于研究与示范。

Effects of Different Rootstocks with Resistance to Root-knot Nematode on Growth,Quality and Yield of Tomato in Greenhouse

Nine rootstock cultivars of tomato with resistance to Meloidogyne incognita were used by grafting with Zhongza No.9 as scion in solar-greenhouse production.Characters of grafted plant,including resistance to root-knot nematode,growth,yield and fruit quality,were investigated compared with self-rooted plant.Index of root-knot showed that rootstock cultivars 041-373,031D158,Genaros,Baofa009 and Trs-401 were all resistant to nematode both in filed and in artificially inoculation.The results showed that growing characteristics between grafted and self-rooted plant were similar.The quality analysis indicated that soluble protein content,soluble sugar content and sugar-acid ratio were significantly affected by rootstock cultivars,though VC content was not significantly affected.Eldorado significantly decreased soluble sugar content and sugar-acid ratio of fruit,while 041-373 and Trs-401 significantly increased soluble sugar content and sugar-acid ratio.041-373,031D158,Genaros,Baofa009 and Trs-401 were recommended as resistant rootstock cultivars in tomato production.