Effects of Irrigation Schedules on Yield of Mustard (Brassica Juncea)

1981 ◽  
Vol 17 (1) ◽  
pp. 105-111 ◽  
Author(s):  
S. S. Prihar ◽  
K. S. Sandhu ◽  
K. L. Khera ◽  
B. S. Sandhu

SUMMARYIn a 3-year field study with mustard (Brassica juncea L.) on deep well-drained sandy loam and loamy sand soils, 11 post-sowing irrigation schedules based on pan evaporation and growth stages were compared. One irrigation three weeks after sowing gave maximum grain yield and water use efficiency, increasing yield 40% in 1973–74 and 30% in 1976–77 compared with no irrigation. The total water use in this treatment averaged 31·2 cm, of which 15·8 cm was extracted from the 0–180 cm soil profile. Use of soil water by the crop decreased with the amount of post-sowing irrigation. More than one post-sowing irrigation tended to decrease yield and water use efficiency.

Author(s):  
Naveen Rathi ◽  
Bikram Singh ◽  
V. S. Hooda ◽  
Harender . ◽  
Mohammed Mohsin

A field experiment was conducted at regional research station, Bawal, CCS HAU, Hisar during Rabi 2015-16 to study the response of late sown Indian mustard (Brassica juncea L.) to different dose of fertilizer and crop geometry. The experiment was conducted in split-plot design with four fertilizer dose viz. 70% of the recommended dose of fertilizer (RDF), 85% RDF, 100% RDF, 115% RDF in main plot and six crop geometry, viz. 30 cm x 10 cm, 25 cm x 15 cm, 30 cm x 15 cm, 25 cm x 20 cm, 30 cm x 20 cm and 25 cm x 25 cm in sub plots. The results revealed that numbers of primary and secondary branches per plant were significantly higher 115% RDF than 70% RDF, but it was at par with 85% and 100% RDF at all stages of crop growth. Wider crop geometry of 25 cm x 25 cm recorded significantly higher number of primary and secondary branches than narrow crop geometry (30 cm x 10 cm) at all growth stages of crop. Highest oil content was obtained in crop geometry of 30 cm x 10 cm along with application of 70% RDF, whereas, highest protein content was recorded in crop geometry of 25 cm x 25 cm along with application of 115% RDF. Late sown Indian mustard at crop geometry of 25 cm x 15 cm along with application of 85% RDF recorded highest water use efficiency however, highest consumptive use of water was recorded in 25 cm x 25 cm crop geometry along with application of 115% RDF.


Author(s):  
Recep Cakir

The article contains data obtained from evaluations related to irrigation water use efficiency (IWUE) and water use efficiency (WUE), for the main crops, irrigated at different stages of growth, on the basis of some findings obtained in the Research Institute in Kırklareli. Each of the experimental crops was sown and farmed following procedures applied by the farmers in the region, except of the irrigation applications which were based on the sensitivity of a certain crop to water shortage in the soil, during the specific growth stages. Similar procedures were applied and all the experimental treatments were irrigated at growth stages, as predicted in the research methodology, and water amounts required to fill the 0-90 cm soil depth to field capacity were implied. Evaluation data obtained from the field experiments with three major crops, grown on the non-coastal lands of Thrace Region showed, that the productivity of irrigation water, as well as water use efficiencies of all analysed crops, are growth stage controlled. The highest IWUE and WUE efficiencies of 0.87 and 0.92 kg da-1 m-3; and 1.08 kg da-1 m-3 and 0.81 kg da-1 m-3; were determined for wheat and sunflower crops, irrigated at booting and flowering stages, respectively. Each m3 of irrigation water, applied during the most sensitive fruit formation stage (Ff) of pumpkin crop, provided additionally 8.47 kg da-1 fruit yield, 8.09 fruit numbers and 0.28 kg da-1 seed yields, more than those of rainfed farming (R).


1990 ◽  
Vol 41 (3) ◽  
pp. 431 ◽  
Author(s):  
KHM Siddique ◽  
D Tennant ◽  
MW Perry ◽  
RK Belford

Water use and water use efficiency of old and modern wheat cultivars and one barley cultivar were measured in a Mediterranean environment at Merredin, W.A. Water use efficiency for grain increased substantially from old to modern cultivars, with little difference among modern cultivars. Water use efficiency for dry matter was similar between cultivars. Barley had the highest water use efficiency of both grain and dry matter. Improved water use efficiency for grain in modern cultivars was associated with faster development, earlier flowering, improved canopy structure and higher harvest index. Modern cultivars used slightly less water than old cultivars. The pattern of water use was also different, with late-maturing old cultivars using more water in the pre- than the post-anthesis period. The ratio of pre- to post-anthesis water use was highest with the late-maturing, old cultivar Purple Straw (5.2:1) and lowest with early-maturing, modern cultivar Gutha (3.0:1). Soil evaporation estimates showed that modern cultivars had lower rates of soil evaporation in the early part of the growing season. This was associated with their faster leaf area development and improved light interception. About 40% of the total water use was lost by soil evaporation with very little difference between wheat cultivars. Barley had 15% less soil evaporation than wheat. Water use efficiency for grain based on transpiration (transpiration efficiency) for the four modern cultivars was 15.8 kg ha-1 mm-1, similar to other studies in comparable environments. Some further improvement in water use efficiency appears possible through improvement in crop biomass and harvest index. However, given the frequent and severe limitations of total water supply at low rainfall sites such as Merredin, there appears to be more scope for improvement in yield and water use efficiency in the medium and high rainfall areas of the wheatbelt.


2013 ◽  
Vol 14 ◽  
pp. 65-77
Author(s):  
Dipendra Pokhrel ◽  
Kiran Baral ◽  
Bishnu R Ojha ◽  
Surya K Ghimirey ◽  
Madhav P Pandey

Wheat crop in developing world including Nepal is grown under rainfed condition and thus face moisture stress at one or more growth stages limiting grain yield. An experiment was conducted at Greenhouse to screen the 60 different genotypes of wheat including Nepalese landraces, commercial cultivars CIMMYT derived advanced lines, NWRP derived advanced lines, and three international drought tolerant check cultivars. The wheat genotypes were grown in pots (single plant) arranged in a replicated split plot design under two contrasting moisture regimes, optimum and moisture stressed. The genotypes were evaluated for water use, water use efficiency, plant height, number of tillers and biomass production. The analysis revealed significant variance between environments and among the wheat genotypes for most of these traits. A wide range of variability was observed for water use, water use efficiency, days to anthesis, plant height, number of tillers and biomass yield in both moisture stressed and non stressed environments. Gautam showed superiority than Bhrikuti and Vijaya among Nepalese cultivar for drought adaptive physiological traits. Landrace NPGR 7504 showed high level of water use efficiency and other positive traits for drought adaptation.


Author(s):  
O. O. Bankole ◽  
A. Oluwaranti ◽  
F. E. Awosanmi

Aims: The objectives of this study were to evaluate maize genotypes of different maturity groups for seedling and grain filling water use efficiency and determine relationship that exist between the water use efficiency traits and yield of different maize maturity groups. Study Design:  Sixteen maize genotypes were planted in Randomized Complete Block Design in three replicates for emergence, vegetative, water use efficiency traits at the seedling and grain-filling growth stages and yield. Place and Duration of Study: The sixteen maize genotypes of different maturity groups were evaluated during the early and late cropping seasons of 2016 at the Obafemi Awolowo University Teaching and Research Farm, Ile-Ife, Nigeria Methodology: Data collected were subjected to Analysis of Variance (ANOVA), correlation analysis among water use efficiency traits and yield for each of the maturity groups. Results: There was no significant difference among the genotypes within each maturity groups for water use efficiency at seedling and grain filling growth stages. The late maturity group of maize used more water at the seedling growth stage than the other maturity groups in the early season of this study while in the late season, the early and extra-early maturity groups used more water than the other maturity groups. Increase in emergence percentage, reduction in speed of germination, and minimal days to complete germination increased water use efficiency at the seedling stage only during the early cropping season. Efficiency of water usage at the seedling growth stage was more among the late and intermediate maturing groups than the extra-early and early maturing groups in the early season while in the late season, the extra-early and early maturing groups used water more efficiently than the late and Intermediate maturing groups Conclusion: Maturity group played a significant role in the expression and manifestation of water use efficiency traits under different environmental conditions.


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