Productivity of different Lablab (Lablab purpureus) Accessions as Influenced by different Height Support Structures
Worku Bedeke*
Published: October 11, 2022
Abstract
A trial was conducted to evaluate different height support structures on agronomic and seed yield attributes of Lablab purpureus accessions in Hawassa Zuria Woreda of Sidama region. Three L. purpureus accessions (L. purpureus 147, 11609 and 6529) and three support structures with different height (0, 100 and 150 cm height) in three time replication were used in randomized complete block design. Support structures height (SS) had significant effect on plant height (PH)), number of branches per plant (NBPP), forage dry matter yield (DMY)), and seed yield (SY) at (P < 0.05). 1.5 m height support structure had significantly influenced all the measured parameter as higher plant height, number of branches per plant, dry matter yield and seed yield in regardless of accession. Similarly, variation in accession had shown significant effect at (P < 0.05) on plant height, number of branches per plant, dry matter yield, and seed yield. The interaction effect of support structures and different accessions was non-significant at (P < 0.05) in all measured parameters and this indicates that performance of the different accessions was stable in all height levels, there is increase in all measured value as heightof support structure increases. Therefore, it can be suggested that it would be better to use best adapted forage species with increased height of support structure. From the three evaluated L. purpureus accessions L. purpureus (147) at the height of 1.5 m support structure produced higher dry matter and seed yield. The support structures could be agroforestry trees, stand tree, stick structures that could be easily accessible and least cost. So, that it can be recommended for unemployed youths who involved in lablab seed production could be profited by using 1.5 m high support structure and accession 147.
Keywords: Accessions; Lablab Purpureus; Dry matter yield; support structures