%0 Journal Article
%A Saxena, K B
%A Singh, L
%A Gupta, M D
%D 1990
%F icrisat:4076
%I Kluwer
%J Euphytica
%N 46
%P 143-148
%T Variation for natural out-crossing in pigeonpea
%U http://oar.icrisat.org/4076/
%X Several researchers have reported a considerable degree of natural out-crossing in pigeonpea from different  environments. This paper reviews the subject with respect to the variation for natural out-crossability,  pollinating vectors, extent of natural out-crossing, isolation specifications, and the possible utilization of  natural out-crossing in pigeonpea improvement .