GENETIC RESISTANCE TO Heterodera goettingiana Lieb. IN PISUM

PNL Volume 11 1979

RESEARCH REPORTS

Perrino, M. Di Vito, E. Porceddu, and F. Lamberti

Gerraplasra Laboratory, National Research Council, Hari, Italy

The different pea (Pisum) taxa constitute important crops all over the

world where peas are grown for human consumption as well as for livestock.

In many areas one of the most damaging pests of the pea crop is the nematode

Heterodera goettingiana (Ref: G. Thorne, Principles of Nematology, McGraw-Hill,

1961). Consequently, screening for resistance to this nematode was, and still

is, regarded an important part of the work to be performed on the pea collection

at this laboratory, and such screening work was recently commenced in colla-

boration with the Laboratory of Plant Nematology, Bari. This note presents

the initial success of this collaboration.

The results of tests involving 112 accessions of peas (Table 1) are

encouraging, as eight accessions representing three taxa were found to be

resistant to H. goettingiana. The screening work continues on other parts

of the pea collection. Additionally, work to elucidate the genetic nature

of the found resistance has been initiated.

Code number of resistant accessions: (a) MG 101877; (b) MG 101789,

MG 1011790, MG 101791, MG 101794; (c) MG 10095b.