evaluation of four f6 wheat lines under different evaluation of four f6 wheat lines under different n- feritizer levels and seeding rates
Abstract: Two fields Experiments were conducted at Etai Elbarud Agricultural Research Station, Beheira 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) Giza 157 // Sx / cardinal , 2) Sakha 69//Sx/ Cardinal, 3 ) Sakha 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 spickelts / splike , weight of grain / spike, weight of 1000 grains, grain yield (ardab/fed) , strw 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 spilkes /m2, straw yield and grain yields / fed . in both seasons. Crude protein % increased by increasing seeding rates.
3- The effect of lines indicated 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 # 1,2 and 3 improved protein % while ash % and fiber % behaved opposite way.
4- The interaction effects of N-levies x seed rates showed that 80 kg N/ fed with 60 kg seeds was the 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 levies 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 other treatments .

Publication year 2004
Pages 1609-1625
Availability location معهد بحوث المحاصيل الحقلية- 9شارع الجامعة- الجيزة
Availability number
Organization Name
serial title Minufiya
Author(s) from ARC
Agris Categories Agricultural research
AGROVOC
TERMS		 Sowing rates. Wheats.
Publication Type Journal
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