Combining ability of white early maturity maize (Zea mays L.) germplasm [electronic resource].

By: Contributor(s): Language: English Summary language: Arabic Description: p.371-382Other title:
  • القدرة على الائتلاف لمواد وراثية مبكرة من الذرة الشامية البيضاء [Added title page title]
Uniform titles:
  • Journal of agricultural research Tanta University, 2006 v.32 (2) [electronic resource].
Subject(s): Online resources: In: Journal of Agricultural Research Tanta Univeristy 2006.v.32(2)Summary: Half diallel cross among 10 white early maize inbred lines were evaluated for silking date, plant height and grain yield at two locations i.e .• Delta region (Sakha) and middle Egypt (Sids), Significant deferences between the two location for all studied characters were detected. OCA and SCA were significant for all characters under and over both locations. Preponderance of additive gene action in genetic expression was obtained for silking date and plant height under and over both locations. Whereas, non¬additive gene action seemed to have played an important role in the expression of grain yield in general. Significant interaction between GCA x locations was reported for all characters while, SCA x locations interaction was significant for grain yield only. The best combiners for GCA effects were i.e., Sk-6004, Sk -6005 and Sk-8055 inbred lines for silking date and plant height. Sk -8050, Sk-7/7. Sk-3411 and Sk-6311 inbred lines for grain yield. The highest desirable SCA effects were 'Obtained for the crosses Sk-6001 x Sk-34/l for silking date, Sk-8050 x Sk-717 for plant height and Sk-8055 x Sk~63/1 for grain yield. The crosses Sk-6004 xSk-34/1, Sk-60S6 x Sk-8050, Sk¬6056 x SK-717, Sk-8050 x Sk-58/8, Sk-8050 x Sk-63/l. SK-717 x Sk-58/8, Sk-717 x Sk-631l and Sk-341l x Sk-63/1 had grain yield over 27.5 ard/fed, short plants and earliness (harvest at 100 days from planting date). Therefore, such crosses could be recommended in maize breeding program as early and high yielding. Herein, it will . be possible to save one irrigation and accept some delay in planting dates.
Star ratings
    Average rating: 0.0 (0 votes)
No physical items for this record

Includes reference.

Half diallel cross among 10 white early maize inbred lines were evaluated for silking date, plant height and grain yield at two locations i.e .• Delta region (Sakha) and middle Egypt (Sids), Significant deferences between the two location for all studied characters were detected. OCA and SCA were significant for all characters under and over both locations. Preponderance of additive gene action in genetic expression was obtained for silking date and plant height under and over both locations. Whereas, non¬additive gene action seemed to have played an important role in the expression of grain yield in general. Significant interaction between GCA x locations was reported for all characters while, SCA x locations interaction was significant for grain yield only. The best combiners for GCA effects were i.e., Sk-6004, Sk -6005 and Sk-8055 inbred lines for silking date and plant height. Sk -8050, Sk-7/7. Sk-3411 and Sk-6311 inbred lines for grain yield. The highest desirable SCA effects were 'Obtained for the crosses Sk-6001 x Sk-34/l for silking date, Sk-8050 x Sk-717 for plant height and Sk-8055 x Sk~63/1 for grain yield. The crosses Sk-6004 xSk-34/1, Sk-60S6 x Sk-8050, Sk¬6056 x SK-717, Sk-8050 x Sk-58/8, Sk-8050 x Sk-63/l. SK-717 x Sk-58/8, Sk-717 x Sk-631l and Sk-341l x Sk-63/1 had grain yield over 27.5 ard/fed, short plants and earliness (harvest at 100 days from planting date). Therefore, such crosses could be recommended in maize breeding program as early and high yielding. Herein, it will . be possible to save one irrigation and accept some delay in planting dates.

Summary in Arabic.

1

There are no comments on this title.

to post a comment.

Home | About ENAL | Collections | Services | Activities | Calendar | Contact us

7 Nadi El Sayed St., Gizah, Egypt | Phone: +02-33351313 | Fax: 202 33351302 | Email: enalegypt@gmail.com