Evaluation of four F6 wheat lines under different N- fertilizer levels and seeding rates

Abstract: Two fields Experiments were conducted at Etai Elbaroud Agricultural Research Station, Beherira Governorate during 2001/2002 and 2002/2003 seasons to study the effect of three nitrogen levels (40, 60 and 80 kg N/ fed)and three seeding rates ( 40, 50 and 60 kg/fed) on wheat yield and yield components using four lines: 1) Gize 157// Sx/ cardinal, 2)SAKHA 69// Sx / cardinal, 3)Skha 69/Star"s" , 4) Clement/ Ald "s" // Sx / cardinal and Sakha 69 was used as a check variety. The results indicated that :
1- The highest values of plant height, length and weight of spike, number of spicketets/ spike, weight of grain/ spike, weight of 1000 grains, grain yield (ardab/ fed), straw yield (ton/fed) and chemical quality (ash %, fiber and crude protein) were obtained from the highest level of nitrogen ( 80 kg N/ fed.).
2- Means of all studied traits decreased with increasing seeding rate, except plant height, number of spikes/ m2, straw yield and grain yields/fed. in both seasons. Crude protein % increased by increasing seeding rates.
3- The effect of lines indicted that lines # 1, 2 and 3 recorded the highest values for grain yield, while the lowest value was for line # 4 over the two seasons. As for straw yield, lines # 1 and 2 gave the highest values, whereas the lowest value was for lines # 4 over the two seasons. Lines # 1 , 2 and 3 improved protein %,while ash % and fiber % behaved opposite way.
4- The interaction effects of N- levels X seed rates showed that 80 kg N/fed with 60 kg seeds was best treatment for grain yield, straw yield and crude protein content, while 40 kg N/fed X 40 kg seeds gave the lowest value.
5- Nitrogen levels X genotype indicated that 80 kg N/fed and each of lines # 1,2 and 3 gave the best values, whereas line # 4 gave the lowest value for the previous characters.
6- The interaction effects of genotypes X seed rates indicated that each of lines # 1, 2 and 3 gave the best values with 60 kg seeds/ fed, whereas line # 4 gave the lowest value for the previous characters.
It could be recommended that using 80 kg N and 60 kg seeds/fed with lines of Giza 157// Sx / cardinal, Sakha 69// Sx /cardinal, Sakha 69/ Star"s" gave higher grain and straw yield and higher protein content than the other treatments
Publication year 2004
Pages 1609-1625
Organization Name
Country Egypt
City القاهرة
Publisher Name: المجلة المصرية للبحوث الزراعية
serial title المجلة المصرية للبحوث الزراعية
Volume 82 . 4
Department Crop Intensification Research
Author(s) from ARC
Agris Categories Crop husbandry
Cereal crops. Triticum.
Publication Type Journal