Effects of inter-row and intra-row spacing on growth, yield and fiber quality of rain-fed cotton in the Blue Nile State
2006
Elhassan, O.M. (Agricultural Research Corporation (Sudan). Damazin Research Station) | Abdelatif, A.H. (Agricultural Research Corporation (Sudan). Cotton Research Program)
Field experiments were conducted during 2000-01, 2001-02, 2002-03 and 2003-04 cropping seasons, at Damazin Agricultural Research Farm, under rainfed conditions, to study the effects of inter-row (70, 90 and 110 cm), intra-row spacing (15, 30, 45 and 60 cm) and their interactions on growth, yield and lint quality of two cotton varieties differing in growth habit [Barac(67)B and Albar A(57)12]. Data for each season and the combined data were statistically analyzed. In general, wider spacing enhanced earliness in both cotton varieties. The closer spacing produced the shortest plants and gave the highest number of branches/m². Seed cotton yield significantly increased due to narrowing the inter-row spacing. The intra-row spacing had no significant effect on yield. On average, the difference in seed cotton yield between the two varieties was not significant. The closer spacing showed the highest number of bolls/m², while the wider one gave the large st boll weight. The intra-row spacing of 15 cm resulted in the lowest seed index and lint index compared with others. The difference in seed index and lint index due to inter-row spacing was not significant. Also, ginning out turn (G.O.T) was not significantly affected by both inter-row and intra row-spacing. The effects of different inter-row and intra-row spacing on yield, yield components and fiber quality suggested the use of 70 cm inter-row spacing for both cultivars, with intra-row spacing of 15-60 cm for Barac (67)B and 30-60 cm for Albar A(57)12
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