Volumetric behavior of molten mixtures of ferric nitrate nonahydrate with hydrates of calcium, cadmium, zinc, and magnesium nitrates has been studied at different temperatures and compositions by using a manometrlc densimeter. Density and molar volumes varied linearly with composition. Molar volumes were additive except for Mg2+ mixtures. Variations of thermal expansion coefficient and molar expansivity have been discussed In terms of changes In hydration of Fe3+ Ions and the van der Waals volume.

Aim: The present research work was carried to study the estrus response and conception rate in lactating Ongole cows consequence to double injection of prostaglandin. Material and Methods:Estrus synchronization was performed by double injection of PGF2α (Lutalyse, 5ml/cow) in purposively selected 22 lactating Ongole cows. The 1st injection was administered on 60 days post partum (day 0) followed nd by 2 injection on 72 days postpartum (day 12) and then insemination was carried out at observed estrus. Results:The ovarian response by ultrasound scanning revealed a dominant follicle of 10.00 + 0.78 mm 3-4 days after the PGF2α administration. Out of 22 cows treated with double injections of prostaglandins 18 cows exhibited estrus within 68.66 + 10.24 hrs. The duration of estrus and mean estrous cycle length recorded as 14.20+2.56 hrs and 21.50+0.21 days, respectively. The estrous cycle was observed in 79.45 % cows. The remaining cows showed 11-17 (5.48%), 26-36 (9.59%) and 37-60 (5.48 %) days of estrous cycle length. The conception rate of observed to be 67.00 +0.26 %. The mean calving to service period found to be 81.18+ 1.62 days in lactating multiparous Ongole cows. Conclusion:It may be concluded that double injection of Prostaglandin has reduced the calving to service period which would even truly reduce calving interval in lactating Ongole cows.

Wendlandia glabrata is a massive bloomer during February–March. Floral characteristics such as diurnal anthesis, white coloured, odorless, tubular flowers with deep seated sucrose-rich nectar conform to psychophily. Nectar is a source of essential and non-essential amino acids for butterflies, inconsistent foragers due to nectar traces in open flowers. This suggests a breakdown of psychophilous pollination. Honey bees consistently collect only pollen. Flies are also inconsistent nectar foragers. Therefore, W. glabrata with psychophilous pollination syndrome is actually melittophilous, and the flowers exhibit Secondary Pollen Presentation (SPP). The flowers are morphologically hermaphroditic but functionally temporally dioecious which promotes outcrossing. Natural fruit and seed set rates are attributed to pollen robbery by honey bees. Anemochory is effective to dispersal of seeds. In situ seedling establishment rate is low due to habit, seasonal herbaceous vegetation, and space limitation. Therefore, we recommend that seedlings be raised in nurseries and transplanted to rebuild populations of W. glabrata.