Research Notes: Inheritance of photoperiod insensitivity to flowering in Glycine max

At the Asian Vegetable Research and Development Center (AVRDC) one of the objectives of our soybean program is to identify photoperiod insensitivity (PI) in the germplasm and to develop high-yielding, widely-adapted types using PI. Photoperiod insensitivity has been reported in soybean by Yoshida (1952), Pohjakallio and Antila (1957), Criswell and Hume (1972), and Shanmugasundaram et al. (1974). However, due to unavailability of a suitable practical technique to screen the F2 and backcross individuals , the inheritance of PI could not be studied accurately

Research Notes : Underground pods in Glycine falcata Benth

The genus Glycine L. has been divided into three sub-genera, namely Glycine L., Bracteata Verde ., and Soja (Moench) F. J. Herm. (Hymowitz, 1970). G.falcata of 1864 was the last of the true Glycine species to be described by Bentham (Hermann, 1962). G. falcata is one of the six species belonging to the sub-genus Glycine L. G.falcata appears to be restricted to Australia (Newell and Hymowitz, 1978)

Solar Based Z Source Inverter for High Power Application

The different converters are developer in recent years for efficient operation of PV based various controllers for ac load application. The Z source inverter is used as both buck and boost operation. But the proposed paper Z source inverter produce more output voltage than input voltage.  In proposed converter produce high power without using the transformer. The space vector modulation is used as to control the speed of an induction motor. The IFOC based SVM produce the pulse and given to the three phase inverter. In induction motor has high power application so the proposed Z source produces high output. The dc link voltage regulation using the filter. The proposed Z source based PV is implemented using MATLAB/ SIMULINK environment

Research Notes: Asian Vegetable Research and Development Center

In 1971, the Asian Vegetable Research and Development Center (AVRDC) was created as an international research organization responsible for improving the production and nutritional qua lity of vegetable crops in the humid tropics. The Center is located to the north of Tainan City in southern Taiwan (between 23°07\u2707\u27\u27 and 23°06\u2736 north latitude, and between 120°16\u2745\u27\u27 and 120°17\u2728\u27\u27 east longitude at an elevation of nine meters AMSL). In March 1973, AVRDC selected the soybean as one of the six crops to receive initial emphasis in its research program

Research notes: Inheritance of time of flowering under short-day conditions

Flowering in soybean is initiated by short daylength. There are several investigations exploring the genetic basis of the photoperiodic response in crop plants. However, such studies in soybean are quite limited

Research Notes : Forcing soybeans to mature by spraying paraquat

[n the tropics, soybeans theoretically can be grown year around. The rainfall pattern distinguishes the soybean crop as either wet season or dry season. Rainfall at harvest time invariably causes sprouting of the seeds in the field and can result in a total loss of the crop

Research Notes : Flowering of Glycine max (L.) Merr. with cotyledonary and unifoliolate leaves

In \u27Biloxi\u27 soybeans the trifoliolate leaves are essential to perceive the photoperiodic inductive conditions and to cause the initiation of flower primordia (Borthwick and Parker, 1935). To respond to photoinduction, some plants have to reach ripeness to flower or pass the juvenile phase (Lang, 1965). Juvenile phase is distinct in some soybean cultivars, such as Acc. G 2120, while in the day-neutral soybean Acc . G 215 it is not clear whether there is a juvenile phase (Shanmugasundaram and Tsou, 1978)

Research Notes : Screening for immature green soybeans as a vegetable

Soybeans, either immature green beans in pod as in Japan, or shelled immature green beans as in China, are used as a vegetable in a number of countries. Although there is no strict definition for vegetable soybeans, generally large pods and seeds are preferred. The pubescenc·e and hilum co-lor should be gray

Renewal Theory Applications to Continuous Inspection of Markovian Production Processes

Theory of renewal processes has been used to study the effectiveness of three continuous sampling schemes, when the quality of the successive units in a continuous production process follows a two-state time-homogeneous Markov chain model which comprises the iid Bernoulli model considered by Dodge. The average outgoing quality and operating characteristics functions have been formulated and some numerical results have been given when the serial correlation coefficient of the Markov chain is assumed to be known a priori

Research Notes : Relationship between photoperiod, temperature, solar radiation and grain yield in soybean

Photoperiod and temperature influence the growth, development and area of adaptation of soybean cultivars (Shanmugasundaram, 1981). Germplasm collected from the U.S. Maturity Groups 00 to X were screened for photoperiodic response and were classified into 10 different photoperiod sensitivity score groups, based on flowering in 10 and 16 hr photoperiods (Shanmugasundaram, 1981). By utilizing 0 sensitivity score types as one parent, high yielding selections with different levels of photoperiod sensitivity have been developed