SHARMA, B PPATHANIA, SABHYA2019-08-062019-08-062019-08http://krishikosh.egranth.ac.in/handle/1/5810119582ABSTRACT The present investigation entitled, “Effect of Jeevamrit on flower and seed yield of China aster (Callistephus chinensis (L.) Nees)” was carried out at Research Farm of Department of Floriculture and Landscape Architecture, Dr Yashwant Singh Parmar University of Horticulture and Forestry, Nauni, Solan, (HP) – 173 230 during 2018 to 2019 on cv. ‘Kamini’ to find a suitable dose of Jeevamrit for maximizing flower and seed yield of China aster. Treatments comprised of different concentration of Jeevamrit applied both as drench and foliar spray and Trichoderma spp @ 1kg/q FYM + Foliar application of Neem seed kernel extract and Garlic extract @ 5% each at 15 days interval, alternatively. Field experiment was laid out in Randomized Block Design (RBD) with 14 treatment combinations replicated thrice. The consecutive experiment was carried out at seed laboratory in the Department of Seed Science and Technology. Present findings revealed maximum plant height (47.38 cm), plant spread (28.47 cm), number of flowers per plant (23.87), number of flowers per plot (286.44), number of seeds per flower (160.27), seed yield per plant (8.03 g), seed yield per plot (96.40 g) with treatment T5 {Jeevamrit @ 5% (Drench) + Foliar application of Jeevamrit @ 10%}. Minimum number of days taken for visible bud formation (49.89 days), days taken for opening of flower (60.60 days) were recorded without Jeevamrit. Maximum flower diameter (5.81 cm), individual flower weight (3.91 g), 100 flower weight (393.31 g) recorded withJeevamrit @ 7.5% (Drench) + Foliar application of Jeevamrit @ 10% application (T8) which was found to be at par with Jeevamrit @ 5% (Drench) + Foliar application of Jeevamrit @ 10% (T5). Maximum germination percentage (84.75%), seedling length (6.22 cm), seedling dry weight (4.18 mg), seed vigour index-I (527.15), seed vigour index-II (354.26) and minimum electrical conductivity (60.25 ds/m) was registered in Soil treatment with Trichoderma spp @ 1kg/q FYM + Foliar application of Neem seed kernel extract and Garlic extract @ 5% each at 15 days interval, alternatively (T13) and also found to be at par withT5.ennullThesis