EFFECT OF INTER AND INTRA ROW SPACINGS AND DIRECTION OF SOWING ON GROWTH AND YIELD OF MUSTARD [Brassica juncea (L.) Czern and Coss] Cv. GM-1 UNDER MIDDLE GUJARAT CONDITIONS
Loading...
Date
1998
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
AAU, Anand
Abstract
A field experiment was conducted at the College Agronomy Farm, Gujarat Agricultural University, Anand Campus, Anand during rabi season of 1996-97 to study the effect of inter and intra row spacings and direction of sowing on growth and yield of mustard Cv. GM-1 under Middle Gujarat Agroclimatic conditions. The soil of experimental plot was sandy loam in texture having good drainage with 7.8 pH. The soil was deficient in total nitrogen (0.036%). high in available phosphorus (60 kg P2O5-1) and medium in available potash (276 kg K2O ha-1). The experiment comprised of three levels each of inter row (30, 45 and 60 cm) and intra row (no thinning, 15 and 20 cm) spacings alongwith two directions of sowing (East-West and North-South). The experiment was laid out in a Randomized Block Design with four replications. Results indicated that maximum initial plant population and plant population at harvest were recorded under 30 cm inter row spacing. Inter row spacing of 60 cm recorded higher drymatter production per plant and maximum number of primary, secondary and tertiary branches per plant than other spacings. However, for LAT, 30 cm inter row spacing was optimum, while the plant height was not affected due to inter row spacing. Among different inter row spacings, 60 cm spacing brought concomitant improvement in the yield attributes viz., siliquae per plant, length of siliqua, seeds per siliqua and seed yield per plant. But 45 cm inter row spacing was found to be optimum for total seed yield and harvest index, while' stover yield was maximum under 30 cm inter row spacing and 1000-seed weight not altered significantly. Among quality parameters, oil content was not significantly affected due to inter row spacing, but 45 cm inter row spacing registered the maximum oil yield Initial plant population and plant population at harvest were significantly the highest under no thinning treatment. Vegetative growth parameters such as dry matter production per plant, primary, secondary and tertiary branches were significantly higher under 20 cm intra row spacing, while the plant height remained unaffected due to intra row spacing except at 30 DAS, wherein the no thinning treatment recorded taller plants than others. Similarly, for LAI, no thinning treatment showed the highest value. Increased dry matter production and number of primary, secondary and tertiary branches due to 20 cm. intra row spacing resulted into significantly more siliquae per plant, length of siliqua, seeds per siliqua, 1000-seed weight and seed yield per plant. However, seed yield did not differ significantly due to intra row spacings. On the contrary, no thinning treatment recorded higher stover yield and 15 cm intra row spacing recorded maximum harvest index. The oil content and oil yield remained unaffected due to intra row spacings. The East-West direction of sowing had significantly increased plant height at 45 DAS, LAI at all the growth stages except at 60 DAS, dry matter production per plant at all growth stages except at harvest number of branches per plant, siliquae per plant, length of siliqua, seeds per siliqua, seed yield, harvest index and oil yield over North-South direction. However, initial plant population, plant population at harvest, plant height at all the growth stages except at 45 DAS, LAI at 60 DAS, dry matter production per plant at harvest, seed yield per plant, 1000-seed weight, stover yield and oil content did not differ significantly due to direction of sowing. From the fore going results it is pertinent that mustard variety GM-1 gave the highest seed yield as well as net returns(Rs. 16,989 ha-1) when it was sown at an inter row spacing of 45 cm and intra row spacing of 15 cm in East- West direction under Middle Gujarat Agroclimatic conditions.
Description
Keywords
AGRONOMY, AGRICULTURE, A STUDY