Informations et ressources scientifiques
sur le développement des zones arides et semi-arides

Titre : Effect of Sowing Methods on Yield and Yield Components of wheat, Gezira Scheme, Sudan

Auteur : Mohamed Daffallah Yousif , Taha,

Université de soutenance : University of Gezira

Grade : Master of Science (MS) in Power and Machinery 2021

Résumé
Wheat is a strategic crop in Sudan, and is produced exclusively under irrigation during a winter season (November – March).Bed planting is proven in many parts of the world to reduce the cost of production and increase water use efficiency. A field experiment was conducted at the Gezira Research Station Farm (GRSF) during season (2017/2018).The objective of this study to Effect of Different Sowing Methods on Yield and yield components of wheat, of the Gezira Scheme, Sudan. Treatments included five sowing methods which were seed drilling on flat soil, broadcasting and 80-cm ridging, 80-cm ridges and three rows bed planting, 100-cm ridges and five rows bed planting, and 130-cm ridges and seven rows. The experiment was laid out in a randomized complete block design with three replications. The collected data were statistically analyzed by GenStat12 software program. The results showed that there was no significant difference in soil moisture content under the different sowing methods with respect to the 20-cm depth, but there were significant differences(P ≤ 0.05) at the 40 cm depth,whereby the highest soil moisture was found in bed80-cmand three rows bed planting (32.2%) and the lowest one in bed 100-cmand five rows bed planting in the middle (27.9%). Seed drilling on flat had the highly significant difference (P ≤ 0.01)highest number of plants per m² (390plants), while broadcasting/ridging had the lowest number (242plants). The different sowing methods did not significantly affect the number of active tillers per m².The 80-cm bed planting had the significantly(P ≤ 0.05) lowest number of days to 50%flowering (64days), while the 100-cm bed planting had the highest number of days(67 days).Seed drilling had the significantly(P ≤ 0.05) highest plant height (80.1cm), while broadcasting and 130-cm bed planting had the lowest plant height (71.7and71.4cm,respectively).The 80-cm bed planting had the highly significant (P ≤ 0.01) lowest number of days to 90% maturity (91 days), while seed drilling and 130-cm bed planting had the highest number of days (96days). The different sowing methods did not significantly affect the spike length. Seed drilling had the significantly(P ≤ 0.05) highest number of seeds per spike (49 seeds), while broadcasting had the lowest number of seeds (40seeds). The different sowing methods did not significantly affect the thousand seeds weight. Seed drilling produced the significantly(P ≤ 0.05) highest crop biomass and yield (6146kg/ha and 2661kg/ha, respectively), while the 130-cm bed planting produced the lowest (3208kg/ha and1819kg/ha, respectively). Accordingly, this study recommends using seed drilling on flat and 80-cm bed planting with three rows methods because they constitute the best options for improving wheat productivity under the Gezira soil conditions.

Présentation

Version intégrale (1,4 Mb)