scholarly journals Understanding pigeon pea (Cajanus cajan) production conditions, stakeholders’ preferences for varietal traits and their implications for breeding programmes in India

2020 ◽  
Author(s):  
A. Singh ◽  
I. Fromm ◽  
G. K. Jha ◽  
P. Venkatesh ◽  
H. Tewari ◽  
...  

AbstractPigeon pea (Cajanus cajan) is an important pulse crop in the Indian diet and one of the most important sources of dietary protein for the population. In the context of the fourth phase of the Indo-Swiss Collaboration in Biotechnology, an assessment how farmers and consumers perceive new pigeon pea cultivars and what are their preferred traits was conducted. This investigation assessed India’s food security implications due to stagnating and low yield of pigeon pea and ascertain farmers’ preferences of pigeon pea varietal traits, production constraints and farmers’ coping strategies in diverse pigeon pea production environments. Results indicated that production constraints in the studied regions were basically similar, with majority of the farmers identifying pod borer & pod fly as the major pest, and wilt as the major disease and drought as a major production constraint. Farmers indicated the use of clean seed, high yielding varieties, inter & mixed cropping, planting density, and manure application as some of the strategies they used to cope with the production constraints. In terms of preference for new cultivars, farmers want high grain yield with drought tolerance, medium to early maturity, pod borer resistance, tolerance to wilt disease, moderate plant height and ease of threshing without compromising other preferred attributes. The analysis of processors’ preference of grain types for dal processing showed that uniform size, oval shape, orange coloured seed and most importantly moderately hard seed coat are highly desirable. Consumers lacked awareness on the varieties, but considered traits like uniform seeds and reduced cooking time traits more desirable.

1990 ◽  
Vol 115 (3) ◽  
pp. 337-342 ◽  
Author(s):  
L. J. Rao ◽  
B. N. Mittra

SUMMARYEight genotypes of groundnut and two of pigeon pea were evaluated in intercropping at the Indian Institute of Technology, Kharagpur, during the monsoon and winter seasons in 1985 and 1986, to identify plant characters associated with high yield in intercropping. The pod yield of groundnut decreased when intercropped with pigeon pea, the extent of the decline differing with groundnut and pigeon pea genotypes. The reduction in groundnut pod yield and the degree and duration of shading was less when grown with pigeon pea type ICPL87 than with LRG30. During the monsoon, pod yield among intercropped groundnut genotypes ranged between 47% and 88% of their yields under monocropping because of differences in growth pattern and duration (90–125 days). The groundnut type most suitable for intercropping had early vigour, early maturity and high partitioning and pod growth rate. However, variation in pod yield among groundnut genotypes was not observed during the winter season because they showed less variation in duration and growth and there was less shading by the associated pigeon pea.


2019 ◽  
Vol 5 (01) ◽  
pp. 90-93
Author(s):  
Sundar Pal ◽  
Prabhat Tiwari

season, 2019. A category of insect was recorded on four sucking and six solid feeder insect. The population of Jassid, cowbug and leaf webber were recorded from 32nd SW to 50th SW where population rang was 0.33±0.58-6.67±2.31, 0.67±0.19-3.00±0.33 and 1.33±0.58-9.33±0.58 insect/week, respectively. The maximum population of pod bug (10.67±1.53 bug/plant/week), green bug (5.00±1.0053 bug/plant/week), spotted pod borer (8.67±0.58 larvae/plant/week), blister beetle (2.67±1.15 adults/plant/week), pod fly (5.00±1.00 larvae/plant/week), pod borer (8.33±0.58 larvae/plant/week) and plum moth (4.33±0.58 larvae/plant/week) were recorded from 10th, 44th, 48th, 44th, 45th, 49th and 49th SW, respectively.


Food Biology ◽  
2016 ◽  
Vol 4 ◽  
Author(s):  
M. Ariraman ◽  
T. Bharathi ◽  
D. Dhanavel

<p>The present investigation was carried out to study mutagenic effectiveness and efficiency of gamma rays and EMS treatments in Pigeon pea (Cajanus  cajan (L.) Millsp) Var CO-7. The relative effectiveness and efficiency of the both mutagen used was assessed from the data on biological damage in M1 generation and frequency of chlorophyll and viable mutants in M2 generation. The spectrum of chlorophyll mutants such as xantha, albino, chlorina and viridis, viable mutants like tall, dwarf, early flower, early maturity, late maturity, bushy, high yield and seed mutants were observed in both the mutagenic treatments.  Among the chlorophyll mutants xantha was found more in number. The mutagenic effectiveness and efficiency were found to be higher at 20KR of gamma irradiation and 25mM of EMS. The mutation rate of gamma rays was higher in terms of effectiveness than that of EMS. More number of chlorophyll and viable mutants was induced in gamma rays treatment when compared EMS treatment.</p>


2011 ◽  
Vol 14 (3) ◽  
pp. 197-204 ◽  
Author(s):  
Gaurav Krishna ◽  
P. Sairam Reddy ◽  
Pramod W. Ramteke ◽  
Pogiri Rambabu ◽  
Kailas Bhagawanrao Tawar ◽  
...  

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