scholarly journals RESPONSE OF YIELD AND ITS ATTRIBUTING TRAITS FOR VARIOUS NITROGEN REGIMES IN INDIAN MUSTARD [BRASSICA JUNCEA (L.) CZERN. AND COSS.]

2021 ◽  
Vol 21 (No 1) ◽  
Author(s):  
Manoj Kumar ◽  
Harmeet Singh Janeja

The research endeavor to study the effect of nitrogen levels on yield and its attributing traits including both quantitative and qualitative characters was undertaken by utilizing eleven diverse commercial Indian mustard (Brassica juncea L.) cultivars and forty-five hybrids raised in alpha lattice design with two replications under three nitrogen levels viz., control; 75 kg Nitrogen /ha and 150 kg Nitrogen /ha. at the experimental farm of Lovely Professional University, Jalandhar Punjab. The traits viz., days to flower initiation, 50 percent flowering and maturity; plant height; number of secondary branches; test weight; seed yield; harvest index; oil content; seed & chaff nitrogen and Seed & Chaff Nitrogen uptake increased with the increase in nitrogen levels. On the other hand, the number of seeds per siliqua decreased with the increase in Nitrogen level. Some traits viz. Number of Primary branches & Siliqua on main shoot; length of main shoot and biological yield were found unaffected and didn’t depicted a clear trend at Nitrogen levels under study.

Author(s):  
Bent Al-Hoda Asghari ◽  
Mohsen Yousefi ◽  
Katarzyna Możdżeń ◽  
Joanna Puła ◽  
Peiman Zandi ◽  
...  

Indian mustard (Brassica juncea L. Czern) cultivation is suggested for regions with short seasons and low rainfall. Although there have been many studies conducted on agronomic production of mustard in Iran, the information regarding the interactive impact of cropping seasons and nitrogen fertiliser on growth characteristics and yield quality of mustard plant is still insufficient and requires further investigation. This study focused on the possible implications of different cropping seasons and different nitrogen levels on selected agronomic traits in mustard. In this experiment, five different doses of nitrogen and two sowing periods were used to assess for their combined effects on the growth parameters, seed yield and agronomic characteristics of mustard in the semi-arid climatic conditions of Takestan. The results revealed that cultivation seasons and nitrogen rates had a significant effect on plant height, biomass yield, number of siliques per plant, seed oil content and seed yield.


2018 ◽  
Vol 3 (01) ◽  
pp. 11-15
Author(s):  
Vipin Kumar Malik ◽  
Shiv Kumar Singh ◽  
Vijay Kumar ◽  
Norang Pal Singh ◽  
Ankit Malik ◽  
...  

The considerable amount of genetic variability on the basis of GCV and PCV estimates for the traits; days to 50% flowering, numbers of primary and secondary branches per plant, length of siliqua, 1000-seed weight, seed yield per plant, biological yield per plant and harvest index were found in thirty five genotypes of Indian mustard (Brassica juncea L. Czern and Coss). Heritability and genetic advance were higher for days to 50% flowering, plant height and biological yield per plant. Although, number of secondary branches per plant, seed yield per plant and harvest index had moderately high heritability with moderate genetic advance indicating additive gene effects and selection pressure could be applied on them for yield improvement leads to fast genetic improvement of the materials. Days to 75% maturity, length of siliqua, 1000-seed weight and oil content had low heritability indicating that these traits were under the influence of environmental factors and selection on the basis of these traits could not be effective.


Author(s):  
Debashis Bindhani ◽  
S. B. Goswami ◽  
Amit Kumar ◽  
Ingudam Bhupenchandra ◽  
B. A. Gudade ◽  
...  

A field experiment was conducted during rabi season of 2017-18 at Central Research Farm, Gayespur, Nadia, under Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, West Bengal to assess the effect of irrigation and nitrogen levels on performance of hybrid mustard. The experiment was comprised of nine treatment combinations in split plot design with replicated thrice. The results revealed that, maximum seed yield (2016 kg/ha) was achieved in IW/CPE=1.0 with 120 kg nitrogen/ha followed by IW/CPE=1.2 with the same dose of nitrogen/ha. The highest value of oil percentage (40.2%) was noticed in IW/CPE=1.2 with application of 80 kg N/ha followed by IW/CPE=1.0 and same dose of nitrogen. The maximum oil yield (721 litre/ha) was registered in IW/CPE=1.2 with 120 kg N/ha followed by IW/CPE=1.0 with the same dose of nitrogen/ha. The maximum NUE (30.0 %) was achieved in IW/CPE=1.0 with 40 kg N/ha followed by IW/CPE=1.0 and with 40 kg N/ha. Among the irrigation levels, maximum WUE was recorded 9.6 kg/ha/mm with IW/CPE=1.0 whereas, application of 120 kg N/ha was noticed maximum WUE about 11.2 kg/ha/mm. The maximum biological yield was registerd in IW/CPE=0.8 with 120 kg nitrogen/ha and the lowest was recorded with IW/CPE=1.2 with 40 kg nitrogen/ha. The IW/CPE=1.0 along with 120 kg nitrogen/ha is a suitable combination for profitable production of hybrid mustard in the Mohanpur, West Bengal and other similar ecoregions.


2021 ◽  
Vol 12 ◽  
Author(s):  
Ranjit Saroj ◽  
S. L. Soumya ◽  
Satbeer Singh ◽  
S. Mukesh Sankar ◽  
Rajat Chaudhary ◽  
...  

The response to selection in any crop improvement program depends on the degree of variance and heritability. The objective of the current study was to explain variance and heritability components in Indian mustard Brassica juncea (L). Czern & Coss to recognize promising genotypes for effective breeding. Two hundred and eighty-nine diverse accessions of Indian mustard belonging to four continents were analyzed for yield and yield-related traits (20 traits) over two seasons (2017–2018 and 2018–2019) using an alpha lattice design. The genetic variance was found to be significant (P ≤ 0.01) for the individual and under pooled analysis for all of the evaluated traits, demonstrating the presence of significant genetic variability in the diversity panel, which bids greater opportunities for utilizing these traits in future breeding programs. High heritability combined with high genetic advance as percent of mean and genotypic coefficient of variation was observed for flowering traits, plant height traits, seed size, and seed yield/plant; hence, a better genetic gain is expected upon the selection of these traits over subsequent generations. Both correlation and stepwise regression analysis indicated that the main shoot length, biological yield, total seed yield, plant height up to the first primary branch, seed size, total siliqua count, days to flowering initiation, plant height at maturity, siliquae on the main shoot, main shoot length, and siliqua length were the most significant contributory traits for seed yield/plant. Also, promising genotypes were identified among the diversity panel, which can be utilized as a donor to improve Indian mustard further. These results indicated a greater scope for improving seed yield per plant directly through a selection of genotypes having the parsimonious combination of these nine traits.


1987 ◽  
Vol 23 (3) ◽  
pp. 319-324 ◽  
Author(s):  
J. S. Saini ◽  
R. S. Jolly ◽  
O. S. Singh

SUMMARYThe effect of the field application of chlormequat on the growth, yield and seed oil content of Brassica juncea grown under irrigated and rainfed conditions was evaluated for three consecutive crop seasons. Foliar application at the flower initiation stage increased the number of primary branches, number and length of siliquae, weight of seeds and seed oil content. Chlormequat (50 AS) applied at 80 ml ha−1 increased seed yield by more than 50%. The increase was greater in unirrigated crops.


2017 ◽  
Vol 4 (04) ◽  
Author(s):  
SUNITA SINGH ◽  
R. P. SINGH ◽  
H. K. SINGH ◽  
N. A. KHAN ◽  
M. K. MAURYA

Among the oilseed Brassica crops, Indian mustard [Brassica juncea (L.) Czern and Coss.] is an important source of oil from a nutritional point of view. The nutritional value of oil and cake quality is governed mainly by the composition of its fatty acids, iodine value, saponification, acid value, glucosinolates, crude fibre, protein and limiting amino acids, etc. Seventeen varieties/strains of Indian mustard were taken for saturated and unsaturated fatty acid analysis. The eicosenoic was absent in genotype (NUDBYJ-10) and erucic acid (NUDBYJ-10, LES-46 and Pusa mustard- 21). The fatty acid composition found a variable in different genotypes. Saturated fatty acid, Palmitic + Stearic ranged between 2.3 to 6.5%, Oleic 10.6 to 40.7%, Linoleic 16.1 to 37.7%, Linolenic 13.3 to 26.7%, Eicosenoic 0.00 to 10.30% and Erucic acid 0.00 to 47.50%, respectively. Alternaria blight severity also varied in different genotypes and ranged between 18.75 to 56.25%, maximum being in genotype Kranti and minimum in LES-47. No significant correlation was observed between the fatty acid composition and disease severity. The oil content range from 38.1 to 42.60% and protein content was found highest in variety RGN-73. The amino acid viz. methionine and tryptophan range between 0.41 to 1.81 g/16gN and 0.41 to 1.81 g /16g N, respectively.


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