Effect of spacing on the performance of newly developed Aus rice Var. Binadhan-19

Abstract

Binadhan-19Row spacing Plant densityYield attributes Yield An experiment was conducted at the experimental farm of BINA Sub-station, Gopalganj to determine the effect of spacing on the yield and yield attributing parameters of rice. Four spacings viz. 15 cm × 15 cm, 20 cm × 15 cm, 20 cm × 20 cm and 25 cm × 20 cm were included in the study. The experimental design was a randomized completely block with three replications. Spacing's 15 cm × 15 cm, 20 cm × 15 cm, 20 cm × 20 cm and 25 cm × 20 cm were adopted 49, 42, 36 and 30 hills per square meter, respectively. Results revealed that different spacing performed significantly differed yield contributing characters (plant height, panicle length, number of effective and non-effective tillers, number of filled and unfilled grain, grain and straw yield of rice. Results indicated that the highest plant height (83.40 cm), panicle length (19.73), number of effective tillers per hill (11.00), number of total grains per panicle (87.73), number of filled grains per panicle (70.53), root length (16.07 cm), root weight (38.00 g per five plants), harvest index (38%), grain yield (4.19 t ha -1 ) and straw yield (4.50 t ha -1 ) were found with 25 cm × 20 cm spacing. On the other hand, maximum number of non-effective tillers per hill (1.60) was found in 15 cm × 15 cm spacing. Results of the present study revealed that 25 cm × 20 cm spacing was found to be the best for obtaining maximum grain yield of aus var. Binadhan-19.

Effect of Different Spacing Practices on Yield and Yield Attributes of Spring Rice in Dhanusha, Nepal

“…This might be due to the net effect of other attributes contributing to yield, like the number of plants per plot, as more spacing between the plants will automatically limit the total number of plants in a field or plot. Similar findings were reported by Rajesh and Thanunathan (2003) and Akondo and Hossain (2019) in their experimental studies. Dunn et al (2020) also found higher yields from lower plant density than greater plant density in their field experiment.…”

“…Greater spacing might have resulted in maximum utilization of nutrients, which led to more cell elongation and cell division in the meristematic tissue of plants, which play a key role in increasing plant height. These results are in accordance with the findings of Akondo and Hossain (2019). Further, Ogbodo et al (2010) also observed that plant height was significantly higher when crops were transplanted at a wider spacing (30 cm × 30 cm) than at a closer spacing (10 cm × 10 cm and 20 cm × 20 cm).…”

“…Thousand-grain weights were significantly higher for seedlings transplanted at greater spacings of 25cm × 20cm (25.03 gm) and 25cm × 20cm (24.63) in comparison to lesser spacing treatments. Rajesh and Thanunathan (2003) and Akondo and Hossain (2019) also had similar findings, as the use of wider spacing led to less below-and above-ground competition for higher thousand grain weights.…”

“…Haque et al (2015) also recorded the maximum number of total tillers and effective tillers per hill at the widest spacing (25cm × 20cm) of their experiment on aman rice. Mirza et al (2009) and Akondo and Hossain (2019) also observed that closer spacing reduced the number of effective tillers and increased tiller mortality, resulting in fewer panicles.…”

“…Bozorgi et al (2011) and Awan et al (2011) also found the highest panicle length from more plant spacing than other treatments in their experiment. Further, Akondo and Hossain (2019), from their field experiment on the effect of plant spacing on newly developed rice varieties, found the highest panicle length from the largest spacing (20cm × 25cm).…”