Studying the Morphological Traits and The Quantitative and Qualitative Yield of 6 Different Soybean Cultivars under Different Seed Density Conditions in Mazandaran

Hamideh Semnaninejad¹, Mohammad Javad Mirhadi¹*, Valiollah Rameeh² and Babak Delkhosh¹

¹Department of Agronomy, Science and Research Branch, Islamic Azad University, Tehran, Iran. ²Seed and Plant Improvement Department Agriculture and Natural Resources Research Center of Mazandaran, Sari, Iran.

DOI : http://dx.doi.org/http://dx.doi.org/10.13005/bbra/1549

ABSTRACT:

To study the effect of different cultivars of seed on morphological traits and quality-quantity yield of oil rate of soybean cultivars, an experiment was conducted as split plots in a completely randomized block design with four replications at Mazandaran province in 2013. Seeding rates of 55, 70 and 85 kg per hectare as the main factor and soybean cultivars including Sari (JK), Telar (BP), Caspian (033), Nekador (032), Katul (DPX) and Sahar (Pershing) were considered as secondary factors. The results showed that seed rate has a significant effect on all traits except seed rate per pod. In this regard features such as plant height, and the distance of first pod from ground level increased by increasing the seeding rate. Average yield for the three seed genotypes of 55, 70 and 85 kg were respectively 2999, 3246 and 2700 kg per hectare, which were statistically in two groups. Among cultivars under study Nekador having the highest yield components had the highest seed yield. The yield rate of these three cultivars in three seed rate of 55 , 70 and 85 kg per hectare were respectively 3766 , 3643 and 3469 kg per hectare, that the amounts of 55 and 70 kg has been addressed in a statistics class. Sahar and Katul cultivars were with 135.5 and 156.9 days respectively considered among the earliest and most delayed genotypes. The correlation between seed yield and number of pods per plant and 1000 seed weight was manifested as a significantly positive indicating the prominent role of these two yield components on the seed yield.

KEYWORDS:

 Yield Components; Oil; Morphological Traits; Soybean; Seed Yield; Seed Rates.

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