PNABD246.pdf

*0698 Distabanjong, K. 1984. Inheritance of beanfly resistance in mungbean
(Vigna radiata (L.) Wilczek). Bangkok : The Graduate School
8 0
of Kasetsart
University. xi, p. [En] [En Th Abstj (Thesis - M.Sc., Agriculture)
(SB205.M8D5)
Three beanfly resistant mungbean cultivars namely, LM.031, Jhain Mung 1-4,
and PLM.322 were crossed with three susceptible but high yielding cultivars
namely, U-Thong 1, MG 50-IOA (G), and CES ID-21 to generate Fl, BI, B2, and F2.
Reciprocal crosses of the latter four generations were also made. In 1983,
altogether eighteen trials were grown under natural beanfly infestation to
study the mode of inheritance of the resistance. It was found that resistance
was controlled by quantitatively inherited nuclear genes. Additive gene effect
was responsible for resistance in all trials. Non-additive gene effects,
although large in magnitude as compared to mean and additive gene action, had
large standard errors of estimate that hindered their significance in many
crosses. Thus a plant breeder would be safer using selection methods being
employed in self-pollinated crops, since these schemes utilize additive and
interaction of additive gene actions very effectively. Since resistance level
of mungbean to the beanflies was not high and yet the resistant cultivars gave
very low yield, a plant breeder should plan to combine resistance from all
known sources through 'chain crosses' before performing selections. [AS]
*0699 van der Goot, P. 1984. Agromyzid flies of some native legume crops in
Java. Shanhua, Tainan : AVRDC. 98p. [En] (AVRDC Publication 84-216)
(SB945.L55G8)
Ophiomyia phaseoli Tryon (=Melanagromyza phaseoli Coqa) causes serious
damage to kidney bean, soybean, mungbean, rice bean and other pulses in Java.
Although Melanagromyza sojae Zehnt and M. dolichostigma de Meijere are of no
economic importance, they are still injurious to soybean and other plants. All
of these three species are described with detailed notes on their life history,
food plants, and parasites. The life cycle is completed within 21 days. Four
pupal parasites, viz., Cynipoid sp., Trigonogastra agromyzae Podd, Eurytoma
poloni Gir., and Eurytoma sp. are recorded. The average of parasitism is only
5%; the first 2 species are the most abundant. A list of different food plants
is given with notes on the nature of damage. Of soybeans a few native varieties
seem to be more resistant to injury, but no immune varieties were found. For
controlling this pest, a number of cultural control methods - ridging of young
plants, fertilization, paddy straw cover and time of planting - were tried and
reduced the mortality of young plants. [THH]
*0700 Gupta, P.K. ; Singh, J. 1984. Control of Ophiomyia phaseoli Tyron in
greengram with granular insecticides. INDIAN JOURNAL OF AGRICULTURAL SCIENCES,
v.54(4):321-324. [EnJ [En Abst] (A:PS)
Field studies revealed that aldicarb 10G, disulfoton 5G (Solvirex 5G),
disulfoton 5G (Disyston 5G), carbofuran 3G, phorate lOG and mephosfolan 5G
granules were effective in controlling the bean stem-fly, Ophiomyia phaseoli
Tryon, an important pest of mungbean [Vigna radiata (L.) WilczekJ. Aldicarb,
disulfoton (Disyston) and disulfoton (Solvirex) 2.0 kg a.L,/ha gave best
results in controlling this pest as well as in increasing the grain yield. [AS]
*0701 Plpithsangchan, S. ; Sittisak, N. 1985. Fluctuation of beanfly
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