Salman Dastan Articles List

List of Articles Salman Dastan

Open Access Article
- Abstract Page
- Full-Text
1 - Effects of water deficit and potassium fertilizer application on the grain yield, yield components and bending moment of rice (Oryza sativa L.) var. Tarom Mahalli
Darush Zakavi Morteza Sam Daliri Hamid Reza Mobasser Salman Dastan

In order to investigate the effects of water deficit at different growth stages of rice and potassium application on yield, yield components and bending moment of rice a split plot field experiment was carried out based on a randomized complete block design with three r More

In order to investigate the effects of water deficit at different growth stages of rice and potassium application on yield, yield components and bending moment of rice a split plot field experiment was carried out based on a randomized complete block design with three replications at Nour city in 2009. The main plots were irrigation halting at four levels including irrigation halting at the initiation, middle and end of tillering and at full heading stages, and sub plots were potassium application at four levels including 0, 30, 60 and 90 kg K.h-1. The results showed that irrigation halting at full heading stage decreased significantly tiller numbers per hill, fertile tillers per hill, panicle numbers per m2, 1000 grain weight and grain yield (489.50 g.m-2). The highest number of panicles per m2, grain yield (540.20 g.m-2) and biological yield (1329 g.m-2) were obtained when irrigation halting at the middle tillering stage was used. By increasing potassium application, traits like panicle length, panicle number per m2, 1000 grain weight and grain yield, biological yield and harvest index were rised by 10.48, 12.81, 5.28, 16.39, 6.06 and 10%, respectively. Whereas, plant height and fourth inter node bending moment had been decreased 1.33 and 8.49%, respectively. Except the plant height, other traits were not significant for the interaction effects of irrigation halting and potassium rates. The maximum plant height was observed for the interaction effect of middle tillering stage and control (0 kg K.ha-1). Therefore, at the full heading stage, rice is very sensitive to irrigation halting because of decreasing grain yield and yield component. Manuscript profile
Open Access Article
- Abstract Page
- Full-Text
2 - Effects of cutting height of main plant on the ratooning traits of different varieties in rice (Oryza sativa L.)
Hamed Firozpouri hamidreza mobasser salman dastan reza yadi abas ganbarimalidarreh

In order to evaluate cutting height of the main plant on the ratooning traits of different varieties in rice, an experiment was carried out in 2006. The experimental design was a split plot based on a randomized complete block with four replications. Main plots were fou More

In order to evaluate cutting height of the main plant on the ratooning traits of different varieties in rice, an experiment was carried out in 2006. The experimental design was a split plot based on a randomized complete block with four replications. Main plots were four varieties and lines including Sang Tarom, Tarom Hashemi, Tarom Dylamani cultivars and Irton line and sub-plots were three cutting height of ground cutting, standing (cutting at 40 cm height) and lodging stubble (cutting at 40 cm height). Results showed that the highest plant height, panicle length, number of tiller per hill and grain yield of ratoon were obtained for the Sang Tarom. The reason of highest grain yield in this variety was the increasing panicle length and increased number of tillers per hill. The greatest number of spikelets per panicle was obtained on Tarom Hashemi. The highest plant height and number of tiller per hill was observed at standing method. The lodging stubble method had the highest panicl length, percentage of filled spikelet and 1000 grains weight. The greatest flag leaf length, number of panicle per m2, number of spikelets per panicle and ratoon grain yield were observed in the ground cutting method. The number of spikelets per panicle had positive correlation with grain yield and the grain yield had negative correlation with tiller number at α=%1 level of probability. The results showed that the highest of ratoon grain yield was obtained in Sang Tarom varietiy through lodging stubble method. Manuscript profile
Open Access Article
- Abstract Page
- Full-Text
3 - Effect of plant density on yield of two soybean cultivars in Sari region, Iran
Mehdi Oshri Ghorban Noormohamadi Hosein Yazdpour Salman Dastan Esmail Yassari

     This experiment was carried out in order to investigate the effect of plant density on yield of two soybean cultivars as factorial based on a randomized complete block design with three replications at Khazarabad, Sari region in 2007. Factors we More

     This experiment was carried out in order to investigate the effect of plant density on yield of two soybean cultivars as factorial based on a randomized complete block design with three replications at Khazarabad, Sari region in 2007. Factors were plant distance at three levels (5, 10 and 15 cm), row distance at two levels (40 and 50 cm) and two cultivars (Sahar and Sahel). Results showed that the effect of plant distance, row distance, cultivars, interaction of plant distance and cultivar, interaction of plant distance and row distance and triple interaction of plant distance, row distance and cultivar was significant on seed, oil and protein yields. The maximum yield (5681 kg) was observed for interaction of plant distance of 5 cm and row distance of 40 cm. The most grain yield (6569 kg) was produced at plant distance of 5 cm and row distance of 40 cm for Sahel cultivar and the least grain yield (4796 kg.ha-1) was produced by plant distance of 15 cm and row distance of 50 cm for Sahel cultivar. However, the most oil percentage (54.57%) were obtained at plant distance of 15 cm and row distance of 50 cm in Sahel cultivar and it was 57.54% for Sahar cultivar at plant density of 5×50 cm. Therefore, the highest grain yield was produced for Sahel cultivar at plant density of 5×40 cm and for Sahel cultivar at density of 15×40 cm. In conclusion, row and plant distances and the type of cultivar had significant effect on yield and yield components of soybean at Sari condition, so that each cultivar produced higher yield in a specified density. Manuscript profile

Current Issue

Published Issues

Menu

Browse

List of Articles Salman Dastan