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One of the most important advantages of intercropping or sowing methods is to get the highest yield on a specified area of land through using more efficient way of the available resources. Two successive winter field experiments were conducted at Sakha Agricultural Research Station, Agricultural Research Center (A.R.C), Kafr El-Sheikh Governorate, Egypt, during 2014/2015 and 2015/2016 growing seasons in a split plot design with three replications to study the effects of three different sowing methods viz. flat, terraces and rows; main plots in addition to three different mixed intercropping treatments of Egyptian clover var. Fahl with wheat (10, 15 and 20% of recommended seeding rate for Egyptian clover var. Fahl (i.e. 20 kg fed-1) with 100% of recommended seeding rate of wheat [60 kg fed-1 ]; sub plots). In addition, the two crops were sown as pure stand cultivation in a flat sowing method. Results showed that sowing method of terraces and intercropping Egyptian clover var. Fahl by 10% with 100% wheat resulted in the highest improvement of growth and yield and its components in addition to the highest crude protein content in comparison to the other sowing methods and intercropping patterns. However, the pure stand of wheat had the highest values of grain yield fed-1 and its components in comparison to intercropping treatments. The highest LER (land equivalent ratio; 1.30 and 1.29) and the highest total income (12034 and 11899 L.E.) were obtained when wheat was sown on terrace and intercropped with 10% of Egyptian clover var. Fahl in both of seasons, respectively. In conclusion, sowing method of wheat on terraces and intercropping 10% of Egyptian clover var. Fahl with wheat could be the appropriate suggestion for farmers in North Middle Nile Delta region, Egypt.

The present investigation was carried out with fifty six genotypes involving 10 parents, their 45 F1s hybrids and one check hybrid in tarai region of Uttarakhand. The presence of more amount of variance due to SCA effects than GCA effects in our experimental material indicated that heterosis breeding is better choice. The good general combiners were P1, P3 and P4 for ear length; P8 for ear diameter; P5 and P8 for number of kernel rows per ear; P1 and P4 for number of kernels per row, P8 and P9 for100-kernel weight and P5 for grain yield, which can be utilized directly or indirectly in breeding programme. The best eight specific combiners for grain yield were P1xP8, P4xP10, P7xP8, P5xP8, P5xP9, P4xP9, P1xP2 and P5xP10 involving average x average, good x average, good x poor and average x poor parental combinations of generalcombining ability indicating the presence of non-additive gene action. The nine crosses, P1xP2, P1 xP5, P1xP8, P4xP9, P4xP10, P5 xP8, P5xP9, P5xP10 and P7xP8 had positive significant per cent heterosis for grain yield, and crosses namely P1xP4, P1xP5 and P1xP8 for ear length; P1xP3 and P1xP5 for number of kernels per row and P1xP8 and P9x P10 for 100-kernel weight were having positive significant per cent heterosis at 1% and/or 5% level of significance for respective traits. The crosses, P1xP2, P1xP8, P4xP9 andP7xP8 manifested high SCA effects along with excellent standard heterosis and per se performance for grain yield and also for most of the studied characters, therefore, classified as potential hybrids.

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