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EFFECT OF 'VITHIN ROV SPACING AND DATE OF PLANTING ON GROWTH AND YIELD OF LUPINE | ||
| The Iraqi Journal of Agricultural Science | ||
| Article 1, Volume 38, Issue 2, 2007, Pages 34-40 | ||
| Author | ||
| K. M. AI-Khafaji | ||
| Abstract | ||
| A field experiment was undertaken in three winter seasons, through 2003-2006 in Jadireya Fan11 / Univ. of Baghdad . This was to determine the influence of within row spacings (10 , 20 , and 30 cm.) and dates of planting (9/11 , 23/11 , 7/12 and 21/12) on growth and seed yield of lupine. A split - plot arrangement with RCBD of 4 replicates was used. The main-plots were dates of planting and spacings were sub-plots. Planting was on furrows of 0.4 m , and 6 m long. Each experimental unit included 6 furrows. Data of the mean of the three seasons showed that the highest plant height (49 cm) was obtained of planting in 9/l1 . Plant height was increased from 39 cm to 49 cm as within row spacing increased from 10 cm to 30 cm . This Ins been reflected on plant root length that was increased from 15.5 cm to 17.3 cm . Delayed planting from 9/11 to 21112 reduced plant height from 49 cm to 33 cm and coincided with reduced plant root length from 17.3 cm to 15.8 cm, However, planting spacing did not affect root dry weight, but delayed planting reduced it from 0.27 g to 0.17 g . Plant dry weight was increased from 13g to 15g when plant spacing increased from 10 cm to 30 cm . Whereas, plant dry weight was decreased from 17.4 g to 9.5 g when planting delayed from 9/11 to 21/12. The best seed yield (4.13 t/ha) was obtained from planting by l()x40 cm and 23fll date of planting . Planting late in 21/12 and 30 cm spacing gave the lowest seed yield (0.68 t/ha). It was concluded that the best spacing for lupine was lOx 40 cm when planted during 23/1 1 to 7/12. Th is treatment gave highest growth nne (5.39 g 1m2 / d). This implies that growth rate was the main outcome that balanced total dry matter ofplant and seed yield to give suitable harvest index.considering the conventional formula | ||
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