Study on growth phenology of soybean cultivars after harvesting of rice in Guilan province

Subject Areas : Agroecology Journal

Hasan Akhgary ¹ , Shahram Sedaghathoori ²

1 - Scientific board of Islamic Azad university-Rasht branch
2 - Scientific board of Islamic Azad university-Rasht branch

Received: 2006-09-12 Accepted : 2006-11-04 Published : 2006-09-23

Keywords: L11, Rice, soybean, Intercropping, transplanting, william&#039, s cultivar, Pashm-Baghala,

Abstract :

Intercropping of agricultural crops is one of the proper approaches for increasing of agriculture efficiency. To achieve this purpose in Guilan rice lands, sequential cropping of rice and soybean was assessed. In this experiment, rice as a main crop and soybean as a second crop were planted. Soybean seeds were sown and production of soybean transplants carried out before rice harvesting. Immediately after rice harvesting and preparation of rice land to plant the second crop, transplants of seven cultivars of soybean planted in related blocks. Traits of soybean cultivars assessed by randomized completely block design in three replications. Vegetative and reproductive stages of soybean transplants and plants studied from sowing date to harvesting time. Based on the results, maximum transplants death, minimum seed yield, minimum plant height, maximum chlorosis due to deep water at base of the plants and minimum height of first sheath per plant related to SRF cultivar. Minimum transplants death in soybean nursery related to William's cultivar with 96.6 % safe plant. Plant height, lateral foliage number and seed yield traits had significant difference at confidence level of 0.01, while height of first sheath and seed numbers per plant had significant difference at confidence level of 0.01among soybean cultivars. Results showed that Pashm-Baghala and LI, cultivars had maximum seed yield (194.5 and 196.1 gr/m2), while SRF cultivar had minimum yield.

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