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Evaluation of some new sweet potato breeding lines [electronic resource]

By:

Omran, A. F

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Language: English Summary language: Arabic Description: p.607-620Other title:

دراسة تقييم بعض سلالات البطاطا الجديدة [Added title page title]

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Minufiya journal of agricultural research, 2002 v. 27 (3) [electronic resource]

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In: Minufiya Journal of Agricultural Research 2002. v.27(3)Summary: Two field experiments were conducted to develop new sweet potato lines from true seeds. The results could be summarized as follows : 1- Significant differences were found among studied breed clonal lines in all experimental seasons in all studied traits. 2- Some of breeding lines showed good results for all parameters, while other lines showed good results for some parameters and bad results for others. 3- For number of leaves on main stem, the line No. 9 showed the highest value (56.50), followed by the line No. 10 with average value of 54.40 and significantly exceeded "Mabrouka" cv. (the highest check cv.) by 26.40 and 23.64 %, respectively, produced the largest number of leaves/main stem 71.89 and 56.10, respectively. 4- For leaf area, none of the resulted breed lines statistically exceeded or similar to the check cv. "Mabrouka" (the highest check cv.). 5- Significant differences among the evaluated breeding lines were observed in total tuber yield as weight of roots/plant. The highest total yield was recorded by the three lines No. 10, 16 and 35, since they produced more than 1.00 kg/plant. On the other hand, the lowest yield values were observed by the lines No. 3, 32, 33, 34, 55, 60, 65 and 73, where they gave total tuber yield less than 500 kg/plant. The remaining lines were found between the two. mentioned values in this respect. Generally, the evaluated breeding lines significantly exceeded the check cvs. in total yield.

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Two field experiments were conducted to develop new sweet potato lines from true seeds. The results could be summarized as follows : 1- Significant differences were found among studied breed clonal lines in all experimental seasons in all studied traits. 2- Some of breeding lines showed good results for all parameters, while other lines showed good results for some parameters and bad results for others. 3- For number of leaves on main stem, the line No. 9 showed the highest value (56.50), followed by the line No. 10 with average value of 54.40 and significantly exceeded "Mabrouka" cv. (the highest check cv.) by 26.40 and 23.64 %, respectively, produced the largest number of leaves/main stem 71.89 and 56.10, respectively. 4- For leaf area, none of the resulted breed lines statistically exceeded or similar to the check cv. "Mabrouka" (the highest check cv.). 5- Significant differences among the evaluated breeding lines were observed in total tuber yield as weight of roots/plant. The highest total yield was recorded by the three lines No. 10, 16 and 35, since they produced more than 1.00 kg/plant. On the other hand, the lowest yield values were observed by the lines No. 3, 32, 33, 34, 55, 60, 65 and 73, where they gave total tuber yield less than 500 kg/plant. The remaining lines were found between the two. mentioned values in this respect. Generally, the evaluated breeding lines significantly exceeded the check cvs. in total yield.

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