8342937187

compared with ciosely related species. H. blharl n.sp. was collected from aotl around roota of Plamo satlvuro from Gaya, Blhar, H. arachlsl n.sp. Fron roota of Arachla hypoyea from Khaapura, AJmer, Rajaathan; £.sharafatl n.8p. from roota of Cicer arletlnum from Ralsen, Hadhya Pradesh; H." macronatua    n.ap.    from    roota of Lena

cullnarla    from    Gaya,    Blhar; and Tł

lndentlcaudatuą n.8p. from roota o7 Crotalarla juncea from Udalpur, Rajaathan.

0 6 0 2-LAUGHLIN, C. W., WILLIAMS, A. S. & FOX, J. A., 1969. “The influence of temperaturę on development and sex differcntiauon of Meloidogyne graminis.” J. Nemowi., 1 (3), 212-215.

The effeCts of temperaturę on Meloidogyne graminii on Cynodon sp. werc scudied. At temperatures above 27°C. there was a tendency towards a pre-ponderence of mai es. Temperaturę changes caused developing males to undergo sex reversals or form intersexes.

06 0 3CHOUDHARY, B., RAJENDRAN, R., •5INGH, B. & VERMA, T. S., 1969. “Breeding tomato, brinjal and cowpea resistant to root-knot nematodes (Meloidogyne spp.J.” [Ab-stract.j AU India Nemawlogy Symposium, Neto Delhi, August 21-22, 1969, pp. 46-47.

0 6 0 4-D’SOUZA, G. I. & KASIVISWANATHAN, P. K., 1969. "Cassia lora L., a new host of Pratylenchus coffeae in South India.” (Abs-tract.] Ali India Nemawlogy Symposium, New Delhi, August 21-22, 1969, p. 18.

0 606-NANDAKMAR, C., KHERA, S. & BHATNAGAR, G. C., 1969. “Studies on the susceptibiiity of pearl millct to Heterodera ovenae.” [Abstract.J All India Nemawlogy Symposium, New Delhi, August 21-22, 1969, p. 65.

06 06-NANDKUMAR, C. & KHERA, S., 1969. “Host-range studies on a new spccies of Praiy-lenchus infesting pearl millet.” {Abstract.) AU India Nemawlogy Symposium, New Delhi, August 21-22, 1969, pp. 23-24.

#060 7—NORTON, D. C., 1969. "Meloidogyne hapla as a factor in alfalfa decline in Iowa.” Phyw-pathology, 59(12), 1824-1828.

The stand and yield of luccme were significancly reduced in loam and silty clay loam field plots artificially infested with Meloidogyne hapla, as compared with plots not infested with M. hapla, in a 4-year test in USA. Crown and root rot were significantly morę scverc in the M. hapla plots than in the plots free of the nematode. There was virtually no migration or transfer of the nematode across 3-foot aisles from the infested to the non-infested plots during 4 ycars. In glasshousc tests, ;Vf. hapla inereased the incidence of bactcrial wilt caused by Corynebacteriwu imidiosum in both a resistant and a susceptible variery. In the field, the stand of a resistant variety was reduced significantly when both organisms were tested in combination, as compared with either one tested alcne.

0 6 0 8 —LIN, Y., 1968. [Studies on piant-parasitic nematodes. Interrelationship betwecn Pratylen-chus penetrans and Fusarium oxysporum f. sp. niveum.\ PI. Prot. Buli., Tatwan, 10 (2), 29-40. [In Chinese: English summary.J

When inoculated separately both Pratylenchus penetrans and Fusarium oxysporum f. nioeum were pathogenic on lucerne seedlings but the fungus caused morę scrious symptoms, had a shorter ineubation period and was highly pathogenic. When both were inoculated in combination the disease per-centage was higher and the ineubation period shorter than with either pathogen alone and both were present in the same infected root tissues. The nematode appeared to be attracted by the presence of the fungus. (From Rev. PI. Path., 49, No. 1 OTO.J

06 0 0 -HEYNS, J., 1969. “Longidorus cohni n.sp., a nematode parasite of alfalfa and Rhodes grass in Israel.” Israel]. agńc. Res., 19 (4), 179-183.

Longidorus cohni n.sp. from roots of lucerne and Chloris gayana in Israel, is describcd and figured. It is morę slender than any known species in the genus.

0610-TIKYAN], M. G. St KHERA, S., 1969. "Nothotylenchus bhatnagari n.sp. from the rhizosphere of great millet (Sorghum oulgare Pers.).” Zool. Am., 182 (1/2), 87-91.

Nothotylenchus bhatnagari n.sp. from the rhizosphere of Sorghum vulgare is described from Jodhpur, India. Females have a 0-55 to 0-75 mm. long body, a 9 to 10 p long spear, 4 incisures in the lateral fields, a vulva at 80 to 82% of body and a short posterior uterine sac. Males have a 0 42 to 0-6 mm. (in text 0-42 to 6 0 mm.) long body, 17 to 19 p long spicules, a 5 to 6 p long gubemaculum and a bursa extending over half of taił length.

06 1 1-TIKYANI, M. G., KHERA, S. & BHATNAGAR, G. C., 1969. "Htlicotylenchus goodi n.sp. from rhizosphere of great millet.” Zool. Anz., 182 (5/6), 420-423.

Helicotylenchus goodi n.sp. from the rhizosphere of Sorghum xntlgare from Rajasthan, India has the body 0-64 to 0 84 mm. long, an unstriated lip region, a prominent labial disc, the spear 23 to 25 p long and a hcmispherical taił 0 5 anal body-width long. The małe is not known.

06 1 2-WHITEHEAD, A. G., 1968. “Taxonomy of Meloidogyne (Nematodea: Heteroderidae) with descriptions of four new species.” Trans. zool. Soc. Lond., 31 (3), 263-401.

Thjs is a monographic account of the genus Meloidogyne. 4 new species are described, namely, M. decalineata n.sp. from Coffea arabica in Tanzania, M. ethiopica n.sp. from cowpea and tomato in Tanzania, M. indica n.sp. from Citrus aurantium and U. sine rui 1 in India, and M. megadora n.sp. from Coffea arabica and C. canephora in Uganda. Af. graminis and Af. spartinae are proposed as new combinations for species of Hypsoperine which is considered synonymous with Meloidogyne. Af. P°ghosrianae is considered a species inąuirenda. The nominał species are thoroughiy detailed and there

are 86 figures, 10 tables and 2 keys to differentiate the various spccies.

0 6 1 3 CAVENESS,    F.E. Screenlng cowpea

gennplasm for realatance to root-knot nematodea at I*I,T.A_# [Abstract], Nematroplca 172    (1975) 5 (2) 21 [EnJ International Inat. of