| 000 | 00928nam a2200205Ia 4500 | ||
|---|---|---|---|
| 008 | 170101s1989 xx 000 0 und d | ||
| 082 | _aT 633.83 K55S | ||
| 100 | _aKHER, Samir | ||
| 245 | 0 | _aStudies on screening techniques for resistance in cultivars of some Brassica species against the mustard aphid, Lipaphis erysimi (Kaltenbach) | |
| 250 | _aEntomology | ||
| 260 |
_aLudhiana _bPAU _c1989 |
||
| 300 | _a83, 4L | ||
| 520 | _aScreen house results on optimum aphid population revealed 10 and 15 apterae per plant to be the most optimum aphid population for screening Brassica cultivars at cotyledonary and two-leaf stage, respectively. Plant density did not influence the survival p | ||
| 650 | _aRAPESEED -- DISEASE AND PEST RESISTANCE | ||
| 653 | _aENTOMOLOGY | ||
| 653 | _aMUSTARD -- DISEASE AND PEST RESISTANCE | ||
| 653 | _aPLANT - LICE | ||
| 653 | _aRAPESEED -- DISEASE AND PEST RESISTANCE | ||
| 942 |
_2ddc _cT |
||
| 999 |
_c96737 _d96737 |
||