Abstract
The use of low quality soybean seed is a major limiting factor for yield reduction under tropical and subtropical conditions. Field experiment was carried out at Assosa Agricultural Research Center to determine the effect of priming on yield and yield components of soybean varieties. The experiment had three varieties (Belessa95, Wello and Gishama), three priming types [GA 3 (100PPM), KH 2 PO 4 (50 PP) and water] and three priming durations (0, 6, 12hr) were evaluated using a randomized complete block design (RCBD) in four replications. Highly significant (P 0.01) difference between interaction of varieties by, priming type and soaking durations for plant height at maturity, number of pods per plants, number of primary branches per plants, yield per hectare, and Varieties by priming type interaction showed highly significant (P 0.01) difference for day to 50% flowering, plant height at maturity, number of pods per plants, number of primary branches per plants, harvest index, thousand seed weight and significant (P 0.05) for number of seed per pod and stand count at harvest. The tallest plant height (87.26cm) was recorded when Belessa95 primed with water for 12hr. Also highest number of pods per plant (46) was observed on Belessa 95 primed with KH 2 PO 4 for 12hr, the highest number of seeds per pods (3) was observed when Wello primed with water and highest yield (3418.85 Kg) was recorded for Wello primed with water for 6hr and highest stand count at harvest (119.67) was recorded for Wello primed with water. Hence, Water priming was recommended to user to overcome the problems of poor crop emergence and establishments under this adverse environmental condition. Keywords : Chemo-priming, Soybean Varieties, Correlation, Germination. DOI: 10.7176/JNSR/10-11-05 Publication date: June 30th 2020
Highlights
Soybean [Glycine max (L.) Merrill] is a legume crop taxonomically belongs to the family leguminace, sub family Papilionaceae, tribe phaseolae, Genus Glycine and subgenus Soja (Lackey, 1977)
The highest number of primary branches per plant was observed on Wello and Belessa95variety primed with KH2PO4for 12hr (6.60) and for 6hr (6.54) respectively which was at par with Gishema and Belessa95 primed with KH2PO4 for 12hr (6.53) and for 6hr (6.47) respectively
The tallest plant height was recorded for Belessa 95 variety (87.26cm) hydro primed for 12 hour, the www.iiste.org highest number of pods per plant was observed on Belessa 95 variety primed with KH2PO4 for 12hr (46.00).highest number of primary branches per plant was observed on Wello and Belessa95variety primed with KH2PO4 for 12hr (6.60) and for 6hr (6.54) respectively
Summary
Soybean [Glycine max (L.) Merrill] is a legume crop taxonomically belongs to the family leguminace, sub family Papilionaceae, tribe phaseolae, Genus Glycine and subgenus Soja (Lackey, 1977). The wild (G. soja) and cultivated (G. max) annual species are grouped under thesubgenus Soja. The cultivated species; Glycine max (L.) has never been found in the wild, its probable ancestor is G. soja which is the major gene sources (Hymowitz, 1970). Soybean is a medium altitude crop well adapted to altitude varying from 1300 to 1800 masl receiving annual rainfall of 900 to 1300 mm and it well at 1900 masl having 550 to 700 mm annual rainfall (Amare, 1987). The crop has a wide range of soil adaptation, but performs well on light textured, loams and medium black clays with pH range of 6.5 to 7 in Ethiopia (IAR, 1982)
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