Effect of Late Seeding on Phenology, Morpho-Physiological Traits and Dry Matter Distribution on Urdbean

In order to ascertain the effect of phenology, morpho-physiological traits, and dry matter distribution in different plant parts on seed yield of urdbean under late seeding condition, sixteen urdbean genotypes were planted during 2nd week of September of 2007 and 2008 and phenology, morpho-physiological traits, dry matter buildup and its distribution amongst plant parts were studied. With correlation studies followed by path analysis it was concluded that urdbean seed yield under late seeding condition is highly influenced by seed filling period and dry matter allocation in leaves during flowering. And at maturity it was moderately and positively affected by plant height at flowering and other traits viz., leaf area at flowering and at maturity, total dry matter accumulation at flowering and at maturity and SPAD values had very negligible effect. However, residual correlations were estimated to be of higher magnitude. More in depth study, involving more morphological and/or physiological parameters, to have a clear understanding of urdbean yield structure under late seeding condition.

[1]  H. Shelton,et al.  Effect of environment and plant phenology on prediction of plant nutrient deficiency using leaf analysis in Leucaena leucocephala , 2011 .

[2]  S. Herbert,et al.  Influence of sowing date on phenological stages, seed growth and marketable yield of four vegetable soybean cultivars in North-eastern USA , 2010 .

[3]  M. Zubair,et al.  DENSITY AND PLANTING DATE INFLUENCE PHENOLOGICAL DEVELOPMENT ASSIMILATE PARTITIONING AND DRY MATTER PRODUCTION OF FABA BEAN , 2010 .

[4]  A. Bhattacharya,et al.  Mungbean seed yield: I. effect of dry matter distribution and temperature at different crop growth stages , 2007 .

[5]  M. Abdel-Rahman,et al.  EFFECT OF DATES OF SOWING AND SEED SIZE ON YIELD AND YIELD COMPONENTS OF LOCAL FABA BEAN UNDER SEMI-ARID CONDITION , 2002 .

[6]  G. Slafer,et al.  Photoperiod sensitivity after flowering and seed number determination in indeterminate soybean cultivars , 2001 .

[7]  R. K. Goswami.  PHYSIOLOGICAL INDICES FOR HIGHER PRODUCTIVITY IN GREENGRAM [ Vigna radiata (L.) Wilczek] , 2001 .

[8]  A. Bhattacharya,et al.  FLOWER DROP IN PIGEONPEA: EFFECT OF PHYSIOLOGICAL TRAITS UNDER NORMAL AND LATE SEEDING , 2001 .

[9]  A. Bhattacharya,et al.  Effect of physiological traits on chickpea yield under normal and late seeding , 2001 .

[10]  M. Jayapragasam,et al.  BIOCHEMICAL STUDIES IN THE PROGENIES OF THE INTERSPECIFIC CROSS BETWEEN GREEN GRAM (VIGNA RADIATA L.WILCZEK) AND BLACK GRAM (VIGNA MUNGO L. HEPPER) , 1998 .

[11]  R. V. Koti.  INFLUENCE OF SEASONS ON PHENOLOGY, REPRODUCTIVE EFFICIENCY AND PHYSIOLOGICAL INDICS IN SOYBEAN GENOTYPES , 1997 .

[12]  S. P. Tiwari,et al.  Identification of suitable soybean (Glycine max) varieties for non-traditional regions of India , 1994 .

[13]  D. T. Canvin,et al.  Photosynthetic and Photorespiratory Characteristics of Mutants of Hordeum vulgare L. , 1979, Plant physiology.

[14]  T. Sinclair,et al.  Analysis of the carbon and nitrogen limitations to soybean yield , 1976 .