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Subject: Seed Science and Technology × Author: Priya.Kivadasannavar ×
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    ThesisItemOpen Access
    Standardization of hybrid seed production techniques in chilli (capsicum annuum L.)
    (UAS, Dharwad, 2008) Priya.Kivadasannavar; V.K.Deshapande
    Four field and one laboratory experiments were conducted to standardize hybrid seed production technology in chilli HCH-9646 at Agricultural Research Station, Bailhongal (northern transitional zone-8), University of Agricultural Sciences, Dharwad, during late kharif 2006 and kharif 2007. The pollination at 9.00 am to 12.00 noon on one day after emasculation recorded significantly higher fruit set (53.63%), seed yield (7.08 g), germination (88.20%), field emergence (85.55%) and seedling vigour index (1534) over early and late emasculation and pollination time. Use of fresh pollen recorded significantly higher pollen germination (87.60%), pollen tube length (1034.2 ım), fruit set (33.06%) and seed yield (6.95 g/plant), seed germination (87.41%) and seedling vigour index (1451) followed by pollen stored in refrigerator for one day (86.47%, 963.1 ım, 33.02%, 6.94 g/plant, 86.17% and 1426, respectively). Significantly highest pollen germination (79.88%) and tube length (984.5 ım) were recorded with M1 (75% pollen + 25% filler mixture). Fresh pollens (75%) along with filler mixture (25%) showed higher pollen germination (89.8%) and pollen tube length (1219.5 ım) over other treatments. Significantly higher fruit set (43.34%), seed yield (9.09 g/plant) were observed in plants sprayed with 20 ppm NAA and crossing period of 60 days. While, seed germination (85.37%) was significantly more in plants sprayed with 20 ppm NAA and crossing period of 45 days. In an experiment to know the effect of fertilizer level and seedling age of parents on field performance transplanting of 25 days old seedlings with higher fertilizer level (75:100:100 kg/ha) showed significantly higher seed yield (8.88 g/plant, 7.16 g/plant and 765.5 kg/ha, 672 kg/ha), seed germination (87.13 and 87.32%), field emergence (82.54 and 82.94%) and seedling vigour index (1489 and 1513) in both female (VN-2) and male (Arka Lohit) parents, respectively.
  • Thumbnail Image
    ThesisItemOpen Access
    Standardization of hybrid seed production techniques in chilli (capsicum annuum L.)
    (UAS Dharwad, 2008) Priya.Kivadasannavar; V.K.Deshapande
    Four field and one laboratory experiments were conducted to standardize hybrid seed production technology in chilli HCH-9646 at Agricultural Research Station, Bailhongal (northern transitional zone-8), University of Agricultural Sciences, Dharwad, during late kharif 2006 and kharif 2007. The pollination at 9.00 am to 12.00 noon on one day after emasculation recorded significantly higher fruit set (53.63%), seed yield (7.08 g), germination (88.20%), field emergence (85.55%) and seedling vigour index (1534) over early and late emasculation and pollination time. Use of fresh pollen recorded significantly higher pollen germination (87.60%), pollen tube length (1034.2 ım), fruit set (33.06%) and seed yield (6.95 g/plant), seed germination (87.41%) and seedling vigour index (1451) followed by pollen stored in refrigerator for one day (86.47%, 963.1 ım, 33.02%, 6.94 g/plant, 86.17% and 1426, respectively). Significantly highest pollen germination (79.88%) and tube length (984.5 ım) were recorded with M1 (75% pollen + 25% filler mixture). Fresh pollens (75%) along with filler mixture (25%) showed higher pollen germination (89.8%) and pollen tube length (1219.5 ım) over other treatments. Significantly higher fruit set (43.34%), seed yield (9.09 g/plant) were observed in plants sprayed with 20 ppm NAA and crossing period of 60 days. While, seed germination (85.37%) was significantly more in plants sprayed with 20 ppm NAA and crossing period of 45 days. In an experiment to know the effect of fertilizer level and seedling age of parents on field performance transplanting of 25 days old seedlings with higher fertilizer level (75:100:100 kg/ha) showed significantly higher seed yield (8.88 g/plant, 7.16 g/plant and 765.5 kg/ha, 672 kg/ha), seed germination (87.13 and 87.32%), field emergence (82.54 and 82.94%) and seedling vigour index (1489 and 1513) in both female (VN-2) and male (Arka Lohit) parents, respectively.