000 | 00782nam a2200169Ia 4500 | ||
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008 | 170101s2002 xx 000 0 und d | ||
082 | _aT 633.859.7 D38C | ||
100 | _aDhaliwal, Lakhvir Kaur | ||
245 | 0 | _aCrop-weather-aphid interaction in raya (Brassica juncea L.) under ... environments | |
250 | _aDept. of Agronomy & Agrometeorology | ||
260 |
_aLudhiana _bP. A. U. _c2002 |
||
300 | _a29cm. 119l | ||
520 | _aCrop-weather-aphid interactions in raya (Brassica juncea L.) under different hydro-thermal environments were studied to establish the empirical relationships between meteorological elements and aphid population.The correlation between aphid population and | ||
650 | _aRAYA -- DISEASES AND PESTS | ||
653 | _aRAYA -- DISEASES AND PESTS | ||
942 |
_2ddc _cT |
||
999 |
_c116997 _d116997 |