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Subject: Climate Change Adaptation × Author: Abishna, P V × Start date: 2016 × Type: Thesis × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    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; KAU; Usha, K E
    The study entitled “Effect of growing environment and climate change on growth and yield of cucumber [Cucumis sativus (L.)] under organic management” was carried out at the Academy of Climate Change Education and Research, Kerala Agricultural University, Vellanikkara, Thrissur during 2016-2017. The experiment consisted of two growing environments (poly hose and rain shelter) and four dates of sowing (1st, 11th, 21st June and 2nd July). The biometric, phenological and yield parameters were significantly influenced by the growing environments and date of sowing. The crop sown inside the poly house recorded the highest length of vine (565 cm), number of leaves (83) and number of flowers (60). Early flowering (36 days) and more duration (86.6 days) was also observed under poly house. The crop sown inside the rain shelter had the highest number of fruits (54), fruit weight per plant(9.53 kg), average fruit weight (177 g), early harvest(60 days), number of harvest (12) and yield (31.6 t/ha). The crop sown on 1 June showed early flowering, more number of fruits per plant, weight per plant, number of harvest and yield both in rain shelter as well as poly house. The crop sown on 11th June recorded the highest length of vine inside the poly house. The crop sown on 21 June had the highest number of flowers and early harvest inside the rain shelter whereas the duration was extended in poly house. The crop sown on 2nd July number of leaves in rain shelter whereas the number flowers and early harvest was observed in poly house. The highest N, P and K (170 kg/ha, 116.5 kg/ha and 520 kg/ha) and organic carbon (3.12%) were also found the soil under rain shelter after the experiment. The highest bacterial (45.95× 106cut ml-1) and fungal (76× 106cfu ml- 1 ) population was observed inside the rain shelter. Actinomycetes could not be detected either in poly house or in rain shelter. With respect to the micro climate, the highest maximum temperature, minimum temperature, soil temperature and relative humidity were observed inside the polyhouse throughout the crop season. The highest soil moisture content and PAR was observed inside the rain shelter. The results of the present study revealed that growing environment and date of sowing has significant influence on growth and yield of cucumber. Rain shelter is a potential method to maintain the micro climate in favor of cucumber growth and yield. Rain shelter growing and sowing on 1st June had a significant impact on realizing the highest yield parameters and yield in cucumber compared to poly house growing and other dates of sowing.