Biochemical composition of stigma and style in Cyamopsis spp.

Anju  Ahlawat,  H.  R.  Dhingra  and  S.  K.  Pahuja*

Department of Botany and Plant Physiology
CCS Haryana Agricultural University,
Hisar-125 004 (Haryana), India
(Received : 18 December, 2012, Accepted : 18 February, 2013)


Guar [Cyamopsis tetragonoloba (L.) Taub.] syn. C. psoraliodes  (lamk; D. C. 2n=2x= 14) belongs to family Leguminaceae, is one of the most important kharif legume crops and is well adapted to arid and semi-arid regions of the world. The cultivated species of guar i. e C. tetragonoloba takes about 90-150 days generally for maturation. The flowers are born in axillary raceme on long petioles. The crop is considered strictly self-pollinated. C. serrata Schinz (2n= 14) is a wild, early maturing (40-50 days), while the other wild species i. e. C. senegalensis is also slow growing annual herb with narrow pentafoliate leaves and small pods and matures in 120-130 days. Protein content of stigma and style was nearly identical in all the three species, while total soluble carbohydrate content in C. tetragonoloba and C. serrata was nearly identical (5-6 mg/100 mg FW), while it was low in C. senegalensis  (2.4 mg/100 mg FW).

Key words : Biochemical, composition, Stigma, style, cyamopsis