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491
Varietal resistance to the rice whorl maggot Hydrellia philippina Ferino [microform].
Published 1977Visual Material -
492
Influence of herbicides on sclerotium damping-off in tomato [microform]
Published 1977Visual Material -
493
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494
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495
Nematicidal properties of some root extracts on meloidogyne incognita [microform]
Published 1977Visual Material -
496
Pathogenicity and control of nematodes on grapes (vitis vinifera Linnaeaus) [microform]
Published 1977Visual Material -
497
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498
Resistance to the brown planthopper, Nilaparvata lugens (Stal) in the rice varieties [microform].
Published 1977Visual Material -
499
The inheritance of resistance to green leafhopper, nephotettix virescens distant, in some rice varieties [microform].
Published 1977Visual Material -
500