000 00859nam a2200229Ia 4500
008 170101s1988 xx 000 0 und d
082 _aT 634.139.4 M29S
100 _aMALHI, Avtar Singh
245 0 _aStudies on canker and die back of pear in Punjab
250 _aPlant Pathology
260 _aLudhiana
_bPAU
_c1988
300 _a67,1l
520 _aDisease severity index of canker and dieback of pear caused by Botryodiploda theobromae varied from 12.50 to 55.83% on variety I Patharnakh, 7.50 & 3850% on Bagughosa and 11.50% on Leconte. Disease severity index was maximum on trees of 18 or >18 years ol
650 _aPEAR -- DISEASES AND PESTS
653 _aCANKER(PLANT DISEASE)
653 _aDIE -- BACK OF PEAR
653 _aFUNGUS
653 _aPEAR
653 _aPEAR -- DISEASES AND PESTS
653 _aPL PATHOLOGY
942 _2ddc
_cT
999 _c96358
_d96358