02569nam a22001817a 4500 OSt 20250320105035.0 250319b |||||||| |||| 00| 0 eng d NVSU Dulay, Alvin C. Effects of a controlled environment on the root development of chrysanthemum (dendrathema grandiflora T. Zvlver)/ Alvin C. Dulay Bayombong: Nueva Vizcaya State University, 2018 xi, 67 leaves : illustrations, photos ; 28 cm. This study was conducted at the College of Engineering and Applied Technology experimental area, Benguet State University, La Trinidad Benguet from November to February 2018. It was conducted to determine the effects of different levels of relative humidity and lighting duration on the root development of chrysanthemum cuttings. The study used two factors in completely randomized design (CRD) having different levels of relative humidity as the factor RH and the lighting duration as the factor L. Factor RH with three levels, 60-70%, 70-80%, and 80-90% relative humidity while factor L has also three lighting duration, 2 hours, 4 hours, and 6 hours, making nine treatment combinations. The study used two-factor factorial experiment arranged in completely randomized design (CRD) having different levels of factor RH (relative humidity) and factor L (lighting duration). Factor RH had three levels, 60-70%, 70-80%, and 80-90% while factor L had also three lighting duration, 2 hours, 4 hours, and 6 hours. The treatment combination are as follows, RHIL1(60-70% RH and 2 hours lighting), RH1L2 (60-70% RH and 4 hours lighting), RH1L3 (60-70% RH and 6 hours lighting), RH2L1 (70-80% RH and 2 hours lighting), RH2L2 (70-80% RH and 4 hours lighting), RH2L3 (60-70% RH and 6 hours lighting), RH3L1 (80-90% RH and 2 hours lighting), RH3L2 (80-90% RH and 4 hours lighting), RH3L3 (80-90% RH and 6 hours lighting). Results of study revealed that the different levels of relative humidity and lighting duration has no significant effect on most of the data gathered on the propagation of chrysanthemum shoot tip cuttings particularly on the root development. However, some parameter such as the mortality rate shows high significance which recommends that 80-90% relative humidity and two hours lighting duration is the best environment for chrysanthemum propagation. Thesis (Master of Science in Agricultural Engineering - Soil and Water Management) Includes appendices and bibliographical references ddc TH 0 105 105 0 0 ddc 0 0 NVSUBAY NVSUBAY GS 2025-03-19 Donation 0 T D879e 2018 T838 2025-03-19 13:10:24 2025-03-19 TH