1. KAUTIR (Kerala Agricultural University Theses Information and Retrieval)

Permanent URI for this communityhttp://localhost:4000/handle/123456789/1

Browse

Subject: search.filters.subject.Relative humidity

Search Results

Now showing 1 - 5 of 5
  • No Thumbnail Available
    Item
    Crop weather relationship studies in bitter gourd
    (Department of Agricultural Meteorology, College of Horticulture, Vellanikkara, 1996) Lincy Davis, P; Balakrishna Pillai, P
    An experiment was conducted during 1995 – 96 at the College of Horticulture, Vellenikkara to find out the optimum date of sowing and to study the crop – weather relationship in bitter gourd, variety mc –84. The experiment was laid out in randomised black design with 3 replications. The treatments consisted of twelve dates of sowing starting from April 15th, 1995 and ending in March, 15th, 1996. For each and every treatment one control plot was maintained. The biometric observations of the crop growth characters, flowering and yield attributes were taken at different stages of development of the crop. The observations on the incidence of pests and diseases were recorded from the control plots. The observations on weather elements were recorded daily. October sowing was significantly superior to others with regard to number of female flower production, number of fruits, fruit set, fruit length girth, weight and yield. The crop weather relationship studies showed that the temperature range during 45 to 65 DAS and sunshine hours during 40-60 DAS were positively correlated with both total yield and number of female flowers per plant while minimum temperature during 45-60 DAS and mean relative humidity during 45-70 DAS were negatively correlated with both total yield and number of female flowers per plant. Crop sown during September, October and November were free from the attack of Bactrocera cucurbitae (Coq.). While Eudioptes indica (Saund.) occurred throughout the year. Mosaic disease incidence was severe in crops sown during June. But September sown crop was free from diseases.
  • No Thumbnail Available
    Item
    Carbon sequestration and crop weather relations in long term fertilizer experiments
    (Academy of Climete Change Education and Research, Vellanikkara, 2018) Sudhamani, P; Thulasi, V
  • No Thumbnail Available
    Item
    Effect of growing environment and climate change on growth and yield of cucumber [Cucumis sativus (L.)] under organic management
    (Academy of Climate Change Education and Research Vellanikkara, 2017) Abishna, P V; Usha, K E
  • No Thumbnail Available
    Item
    Reproductive performance of cows under homoeothermal disturbances
    (Department of Animal Reproduction, College of Veterinary and animal Sciences, Mannuthy, 1995) Athman, K V; Sudarsanan, V
    Based on the data on the maximum minimum temperature and humidity for a period of two years a year of study was divided into four seasons of JJA SON DJF and MAM The mean maximum environmental temperature of the seasons were 29 56 31 52 32 73 and 34 88°C respectively Two thousand two hundred and ninety eight cows brought to the AI centre from the homesteads of Mannuthy were grouped into 11 treatments of pre and post insemination rests and no rests They were bred by artificial insemination and results of insemination were assessed on the basis of non return Mean conception rate of the seasons were statistically analysed to know the effect of environmental temperature and the effect of pre and post insemination rests to the animals There was no significant difference m conceptions between seasons between the post insemination rests and no rests and between pre insemination rests of 30 and 60 minutes and no rest Conception per cent was significantly higher in the animals those were given pre insemination rest for 90 and 120 minutes Animals with light coat colour had a significantly higher conception rate than those with dark colour irrespective of the seasons Animals inseminated m the afternoon were generally found to have a better conception rate than those inseminated m the forenoon There was no significant difference in the conception rate of heifers and cows both between seasons and between themselves So also there was no significant difference in conception rate of parity groups both between seasons and between themselves Statistical analysis of seasonal mean weight of foetal membranes mean number of cotyledons and mean area of cotyledons and mean birth weight of calves did not show any correlation to suggest influence of seasonal environmental temperature on placental development and birth weight of calves
  • No Thumbnail Available
    Item
    Effect of different shadings on the environmental parameters
    (Department of Land and Water Resources and Conservation Engineering, Kelappaji College of Agricultural Engineering and Technology, Tavanur, 2006) Bindu, P K; Xavier K Jacob