University of Khartoum

Effect of Water Quantities & Intervals of Irrigation on Production &Sennoside Content of Senna makka (Cassia acutifolia L)

Effect of Water Quantities & Intervals of Irrigation on Production &Sennoside Content of Senna makka (Cassia acutifolia L)

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Title: Effect of Water Quantities & Intervals of Irrigation on Production &Sennoside Content of Senna makka (Cassia acutifolia L)
Author: Abdelrhman, Yasin Abdelrhman Makkawi
Abstract: -A field experiment was conducted for two consecutive seasons (2003 / 2004) in the demonstration farm of the Faculty of Agricultural Studies, Sudan University of Science and Technology at shambat. This study is conducted to test three levels of water ( 50 %, 75 %, and 90 % field capacity), and three irrigation intervals (7, 10, and 14 days) on yield and Sennoside content (Sennoside A&B) of Alexandrian senna (Cassia acutifolia L) during the period from 28th April to 21th August. Data recorded included plant height, number of branches / plant, leaf number / plant, leaf area, pod number / plant, fresh and dry weights, leaves yield, pods yield, percentage of Sennoside content of pod, Sennoside content of leaves at flowering stage, and after fruiting stage. The results showed that irrigation interval of 7 days increased significantly the vegetative growth over 10 days, and 14 days. Leaves yield after fruiting stage was 322.7, 306.9, and 251.6 kg / feddan during the first season, and 299.6, 287.3, and 220.7 kg / feddan during the second season, for intervals of 7, 10, and 14 days. Interval of 7 days increased leaves yield after fruiting stage than intervals of 10, and 14 days by about (5.15%), (28.3 %) during the first seasen, and by about (4.3%), (36 %) during the second season. Water quantity of 90 % field capacity increased the vegetative growth significantly over quantities of 50 %, and 75 % of field capacity. Leaves yield after fruitng stage was 198.4, 290, and 392.9 kg / feddan during the first season, and 158.9, 275.3, and 372.9 kg / feddan, for quantities of 50 %, 75 %, and 90 % field capacity, water quantity of 90 % field capacity increased leaves yield after firuting stage than quantities of 50 %, and 75 % FC by about (98 %), and (30.4 %) during the first season, and by about (134.7 %), and (35.4 %) during the second season. Pod yield was 647.4, 560.3 and 356 kg / feddan during the first season, and 617.5, 475 and 312.8 kg / feddan during the second season for intervals of 7, 10 and 14 days.Interval of 7 days increased pod yield than intervals of 10 and 14 days by about (15.5 %) and (81.9 %) during the first season and by about (30 %) and (97.4 %) during the second season. Pod yield was 280.3, 548.4 and 735 kg / feddan during the first season and 232.7, 497.6 and 675 kg / feddan during the second season for quantities of 50 %, 75 % and 90 %. Water quantity of 90 % field capacity increased pod yield than quantities of 50 % and 75 % feld capacity by about (162.2 %) and (34 %) during the first season and by about (190.1 %) and (35.7 %) during the second season. The longer irrigation interval increased leaves Sennoside content at flowering, and after fruitng stages than shorter interval, leaves Sennoside content at flowering stage was 2.5 %, 2.68 % and 2.7 % during the first season and 2.42 %, 2.44 % and 2.65 % during the second season for intervals of 7, 10, and 14 days, and after fruiting stage was 2.56 %, 2.24 % and 2.32 % during the first season, and was 2.32 %, 2.3 % and 2.3 % during the second season for intervals of 7, 10, and 14 days. Pods Sennoside content was 5.35 %, 5.41 % and 5.46 % during the first season and was 5.07 %, 5.43 % and 5.35 % during the second season for intervals of 7, 10, and 14 days. Results showed that the highest quantities of water decreased the percentage of Sennoside content on leaves, and pods. The Sennoside content of leaves at flowering stage was 2.56 %, 2.63 % and 2.7 % during the first season, and was 2.49 %, 2.52 % and 2.51 % during the second season, and after fruiting stage was 2.31 %, 2.27 % and 2.24 % during the first season, and was 2.42 %, 2.29 % and 2.21 % during the second season for quantities of 50 %, 75 %, and 90 % field capacity. Pods Sennoside content was 5.48 %, 5.46 % and 5.28 % during the first season, and was 5.51 %, 5.32 % and 5.04 % during the second season for quantities of 50 %, 75 %, and 90 % field capacity.
Description: June 2005
URI: http://khartoumspace.uofk.edu/handle/123456789/10913
Date: 2015-05-17


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