Varietal performance of transplant <i>aman</i> rice under different hill densities

Abstract

An experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh from July to December 2004 to evaluate the effect of hill spacing on the performance of BRRI dhan40 and BRRI dhan41 as Transplant aman crop. The experiment consisted of five hill spacings viz., 5cm. 10cm, 15 cm, and 25 cm where row to row spacing of 25 cm was kept constant for all treatments. The experiment was laid out in randomized complete block design with four replications. The 25 cm x 5 cm hill spacing produced the tallest plant, highest total number of tillers/hill, bearing tillers/hill lowest number of non-hearing tillers/hill, grain yield and harvest index, while 25 cm x 5 cm hill spacing produced the highest number of sterile spikelets/panicle, straw yield and biological yield. BRRI dhan41 produced higher grain yield (4.7 t/ha) which was the contribution of higher number of grains/panicle and heavier grain weight. Lower yield (4.51 t/ha) was recorded in BRRI dhan40.

Responses of Genotypes and Guti Urea on Yield and Yield Contributing Character of Transplant Aman Rice Varieties (Oryza Sativa L.)

“…The response of difference in producing bearing tillers hill -1 might be due to the variation in genetic makeup of the variety. The above results of variability in effective tillers hill -1 are also in full agreement with many workers (Sohel et al, 2009;Hossain et al, 2005;Shrirame and Muley, 2003). The differential response of tillering in the varieties could be attributed due to its genetic potentiality.…”

“…Differences in the production of total tillers hill -1 might be due to genetic variation, physiological functions and growth characters of the varieties under study. Similar trend were also found by Sohel et al (2009) who reported that all the yield and yield contributing character differed significantly due to variation of their genotypic characteristics. Razzaque et al (2009), Jeng et al (2009 and many other scientists were also found similar findings with the present study.…”

“…The variety BRRI dhan-51 also produced more spike than other varieties for its higher adaptability with the studied region and also the variation of their characteristics. This agreement was to similar by the finding of Sohel et al, 2009;Hossain et al, Shrirame and Muley, 2003;Yang et al, 2001 and many other scientists of home and abroad.…”

Analisis Produksi dan Efisiensi Pengelolaan Tanaman Terpadu Padi Sawah di Provinsi Bali

“…Namun dengan tersedianya prototipe caplak sebagai alat penggarisdi permukaan tanah memudahkan menanam padi dengan cara jajar legowo. Menurut Sohel et al (2009), jarak tanam optimum akan memberikan pertumbuhan yang lebih baik sehingga tanaman dapat memanfaatkan lebih banyak cahaya matahari dan unsur hara.…”

Effect of Planting Distance on Nitrogen Uptake and Productivity of Paddy Var. Rojolele Irradiated with Gamma Rays in Inceptisol

“…Jajar legowo 2:1 system resulted in the highest leaf N concentration (0.22%) and the lowest was found at 25 x 25 cm planting distance system ( 0.13%). According to Sohel et al (2009), the optimum distance would provide growth in the upper part of the plant, thus it could utilise more sunlight. Moreover, it would improve root development, so it would effectively absorb nutrients.…”