Tolerance of mung beans (Vigna radiata) to bentazone

1979 ◽  
Vol 19 (99) ◽  
pp. 504
Author(s):  
WL Felton

An experiment done in 1977 indicated that mung bean yield was reduced after spraying with bentazone. A more detailed study in 1978 with spraying times at 3, 6 and 9 weeks after sowing showed that in both Berken (green gram) and Regur (black gram) phytotoxicity was most severe when spraying was near the commencement of flowering, i.e. the 6 weeks spraying time. Visual leaf burning ratings after each spraying time indicated that Regur was more sensitive to bentazone than Berken. This was also shown by the grain yield being reduced more with Regur than Berken for bentazone applications at 3 or 9 weeks after sowing. Where two applications of bentazone were made a large reduction in yield occurred if one of the applications was at 6 weeks after sowing. Again, applications at 3 + 9 weeks affected Regur more than Berken. Bentazone influenced yield most by reducing the number of pods per plant, but there was also a significant reduction in the number of seeds per pod. Grain size was smaller with increased and repeated rates of bentazone with Regur, but larger with Berken.

1983 ◽  
Vol 101 (2) ◽  
pp. 377-381 ◽  
Author(s):  
R. Rai ◽  
V. Prasad

SUMMARYRhizobium strains adapted to high temperature, and genotypes of green gram, were used to study the symbiotic N2-fixation in a summer season at two moisture levels in calcareous soil. Different interactions between strains and genotypes were observedatthe two moisture levels. At both moisture levels, strain S4 with the green gram genotype S8 showed the greatest grain yield, nitrogenase activity, leghaemoglobin and ethanolsoluble carbohydrate of nodules.


Proceedings ◽  
2020 ◽  
Vol 36 (1) ◽  
pp. 167
Author(s):  
Luis Almeida ◽  
Robert Williams ◽  
William Erskine

Mung beans (Vigna radiata) are a potential crop in rotation with rice on the south coast of east Timor. When Mung beans are planted after rice, the soil is cultivated after rice harvest, before mung beans are planted by hand with the use of a dibble stick. This paper looks at the cost and benefits of broadcasting mung beans into rice just prior to or just after rice harvest. Broadcast mung beans requires much less labour than planted by dibble stick. Broadcast mung beans require more seed, and can be more difficult to weed. Based on a gross margin analysis mung bean yield could be 35% lower and be as profitable as conventionally grown mung beans.


2014 ◽  
Vol 47 (1) ◽  
pp. 107-114
Author(s):  
Z. Fooladivanda ◽  
M. Hassanzadehdelouei ◽  
N. Zarifinia

ABSTRACT Water stress is known as the major threat to reduced growth and yield of plants in arid and semi-arid regions. Potassium is one of the indicators of plant responses to water stress. To evaluate the impact of water stress and levels of potassium on yield and yield components of two varieties of mung bean (Vigna radiata) (promising lines VC6172 and Indian), an experiment in the form of split factorial, based on randomized complete block design with three replicates was conducted in 2011, at the research farm of Safi-Abad Dezfool, Iran (latitude 32°16’ N, longitude 48°26’ E and altitude 82.9 m above sea level) .Water stress in three levels: irrigation at 120 (no stress), 180 (moderate stress) and 240 (severe stress) mm evaporation from pan, were allocated to the main plots and potassium fertilizer at three levels (0, 90, 180 kg /ha) and two varieties of mung bean (promising line VC6172 and Indian) were allotted to the sub-plots. Results showed that water stress and potassium fertilizer significantly affect all traits. The highest grain yield (2093 kg /ha) was obtained from no stress treatment in the case of 180 kg /ha potassium. Total dry matter, number of pods and grain yield, were significantly different between the two varieties. The interaction between fertilizer and variety, on dry matter and grain yield and the interaction between irrigation and variety, on dry matter were significant. We conclude that use of potassium fertilizer can reduce the adverse effects of water stress.


1968 ◽  
Vol 4 (4) ◽  
pp. 339-344 ◽  
Author(s):  
O. N. Mehrotra ◽  
H. K. Saxena ◽  
A. N. Roy ◽  
Shiva Nath

SUMMARYAn experiment was conducted in 1964 and 1965 to study the effects of hormone sprays on pod setting, pod filling and grain yield of black gram. Sprays of 2-naphthoxyacetic acid and p-chlorophenoxyacetic acid, alone and in 'mixture, and gibberellic acid and 1-naphthaleneacetic acid increased pod setting, but grain filling in pods and grain size were only slightly improved. 2-naphthoxyacetic acid gave the highest yield, followed by p-chlorophenoxyacetic acid, 1-naphthaleneacetic acid and a mixture of the first two, which increased yield by 56, 39, 36 and 35 per cent respectively over the control and gave economic returns.


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