Advances in Meteorology

Research Article

Potential Impacts of Future Climate Changes on Crop Productivity of Cereals and Legumes in Tamil Nadu, India: A Mid-Century Time Slice Approach

Table 3

Genetic coefficients of black gram CO6 and red gram CO(RG)6.


Coefficient	Black gram CO 6	Red gram CO(RG)6	Coefficient	Black gram CO 6	Red gram CO(RG)6	Coefficient	Black gram CO 6	Red gram CO(RG)6

CSDL	11.9	12.94	FL-LF	7.073	20.87	SFDUR	2.788	39.6
PPSEN	0.394	0.1	LFMAX	90.09	50.1	SDPDV	3.702	2
EM-FL	15.23	37.5	SLAVR	565.8	400	PODUR	1.478	10.3
FL-SH	3	10.4	SIZLF	300	301.4	THRSH	82	76.2
FL-SD	7.046	16.5	XFRT	0.98	0.9	SDPRO	0.3	0.224
SD-PM	21.84	19.02	WTPSD	0.037	0.24	SDLIP	0.065	0.015

CSDL: critical short day length under which reproductive development continues without the effect of daylength (for short day plants) (hour); PPSEN: slope of the relative growth response to photoperiod with time (positive for short day plants) (1/hour); EM-FL: time from plant emergence to appearance of flower (R1) (photothermal days); FL-SH: time from first flower to first pod (R3) (photothermal days); FL-SD: time from first flower to first seed (R5) (photothermal days); SD-PM: time from first seed (R5) to physiological maturity (R7) (photothermal days); FL-LF: time from first flower (R1) to end of leaf expansion (photothermal days); LFMAX: maximum rate of leaf photosynthesis at 30°C, 350 vpm CO₂, and high light (mg CO₂/m²-s); SLAVR: specific leaf area of the cultivar under ideal growth conditions (cm²/g); SIZLF: largest size of full leaf (three leaflets) (cm²); XFRT: maximal fraction in daily growth that is partitioned to seed and shell; WTPSD: highest single seed weight (g); SFDUR: duration of seed filling for pod cohort at optimum growth conditions (photothermal days); SDPDV: average seed/pod under standard growing conditions (#/pod); PODUR: time required by a cultivar to attain final pod load under standard conditions (photothermal days); THRSH: Threshing percentage. The maximum ratio of (seed/(seed+shell)) at maturity, causes seeds to stop growing as their dry weight increases until shells are filled in a cohort. SDPRO: protein fraction in seeds (g-protein/g-seed); SDLIP: oil fraction in seeds (g-oil/g-seed).