Georgiev, H., 1973 [Study of some types of sterility in tomato and the determination of the possibility of using them in the production of hybrid seed.]  Kerteszeti Kutato Intezet 1~ozlemenyei No. 3, 110- 116. [Hungarian] Georgieva, R., 1973 [Utilization of nuclear male sterility in hybrid seed production in tomato.] Vestn. Cesk. Akad. Zem. 20(l):29-33. [Czech.] Hanumanthappa, H. S., and P. Madhava Menon, 1973 An induced triploidy in Lycopersicon esculentwn mill. by physical mutagens. Madras Agric. J. 60C9/12):1700-1704. Hanumanthappa, H. S., and P. Madhava Menon, 1973 Effect of ionizing radiations on Lycopersicon esculentum mill. Madras Agric. J. 60(9/12):1622-1628. Laterrot, H., 1973 [Resistance of the tomato to tobacco mosaic virus. Difficulties in the selection of resistant varieties.] Ann. Amelior. Plantes, 23(4):287-313. [French; English summary] Malec, K., and K. Stefan, 1973 [Investigations into the resistance of tomatoes to the potato root eelworm, Heterodera rostochiensis Woll..] BiuZ. Inst. Ziemniaka. No. 12, 129-136. [Polish; English summary] Meister, A., 1973 [Studies of the composition of the leaf pigments in mutants of Lycopersicon esculentum, Lycopersicon pimpinellifolium and Antirrhinum majus.] KuZturpfl. 21:295-311. [German; English summary] Nandpuri, K. S., S. Surjan, and L. Tarsem, 1973 Studies on the genetic variability and correlation of some economic characters in tomato (Lycopersicon esculentum M.) J. Research Punjab Agric. Univ. 10(3): 316-321. Sidhu, G., and J. M. Webster, 1973 Genetic control of resistance in tomato. I. Identification of genes for host resistance to McZoidogyne incognita. Nematologica 19(4):546-550. Sidhu, G., and J, M. Webster, 1973 Genetics of resistance in tomato against a fungus-nematode complex. Genetics 74(2,II):s255. [Abst.] Sidrak, G. H., and, A. Suess, 1973 Effects of low doses of gamma radiation on the growth and yield of two varieties of tomato. Rad. Botany 13 (6) :305-314. Simonov, A. A., 1973 (trans. 1975) Inheritance of the absence of stamens in flowers in the stamenless tomato variety (a preliminary report). Sov. Genet. 9(7):819-824. Trans. from Genetika 9(7):21-28. Skiebe,  K.,  1973  [Genetic  prerequisites  for  seed  formation  after  inter- genome  crossing.]  Arch.  Ziichtungsforschung  3(3):183-202.  [German; English summary] Turkensteen, L. J., 1973 Partial resistance of tomatoes against Phytophthora infestans; the late blight fungus. Agric. Res. Rpt. Netherlands. No. 810, 91 pp. From Landbouwdocumentatie (1974) 30(9). [Abst.] Turkov, V. D., 1973 [Experimental parthenogenesis in tomatoes.] In ProbZ. apomiksisa u rast. i zhivotnykh. Novosibirsk, USSR, Nauka. 120-123. From Referativnyi ZhurnaZ C1973) 6.55.28. IRussian] Zobel, R. W., 1973 Use of mutagenesis in physiological genetic studies with plant root systems. Genetics 74(2,II):s306. JAbst.] Zolyneak, C. C., and G. Lupascu, 1973 ICytogenetical studies on some plant material treated with constant uniform electromagnetic fields of 21 000 and 28 000 Oe.] Analele Stiintifice ale Universitatii "AZ. I. Cuza" din Iasi, Ila 19(l):197-200. [Romanian]

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