A three-factor experiment was conducted at the Horticulture Laboratory, Hajee Mohammad Danesh Science and Technology University, Dinajpur during AprilMay 2014 to study the effects of the controlled deterioration (CD) on the yard long bean seed quality at the constant temperature of 350C to assess the physiological seed quality of both the two cvs. The 3 factors considered were: seeds of 2 varieties (Lalbeni/LB of Lal Teer Seed Ltd., and Kegarnatki/KN of United Seed Ltd.); 4 ageing periods (0, 4, 8 and 16 days); and 3 seed moisture contents (12, 16 and 20%). Thus, the 24 treatment combinations compared in the Completely Randomized Design (CRD) with the 3 repetitions for the 8 parameters were: % germination, % abnormal seedlings, % dead seeds, % soil emergence; and seedling evaluation test for the root and shoot lengths as well as their dry matter contents. Identical prototypes of notable (5-1% level) degradations were recorded everywhere. But the disparities were lucid under the extreme stresses. Moreover, highly noteworthy (1% level) relations were observed from all the traits ranging from -0.958 (normal seedling × abnormal seedling) to 0.953 (soil emergence × normal seedling). So, the controlled deterioration technique was very effectual in judging the physiological statuses of the seeds of the two varieties of yard long bean studied. Thus, the seed quality certification program, the suitable limits of vigor for the chosen traits could also be got by that technique. In addition, varietal differences were also found as Lalbeni of Lal Ter Seed Limited was better over Kegarnatki of United Seed Limited. * Corresponding Author: Md. Johny Khan mjkhanhstu@gmail.com International Journal of Agronomy and Agricultural Research (IJAAR) ISSN: 2223-7054 (Print) 2225-3610 (Online) http://www.innspub.net Vol. 7, No. 4, p. 117-127, 2015 International Journal of Agronomy and Agricultural Research (IJAAR) ISSN: 2223-7054 (Print) 2225-3610 (Online) http://www.innspub.net Vol. 5, No. 1, p. 14-22, 2014
[1]
A. Arya,et al.
Seed deterioration in chickpea (Cicer arietinum L.) under accelerated ageing.
,
2010
.
[2]
M. Khajehpour,et al.
Relationship between germination tests and field emergence of wheat.
,
2010
.
[3]
A. Aziz,et al.
Vigor Tests Used to Rank Seed Lot Quality and Predict Field Emergence in Wheat
,
2007
.
[4]
M. Iqbal,et al.
Loss of vigour and viability in aged onion (Allium cepa L.) seeds
,
2004
.
[5]
Z. Nan,et al.
Vigor Tests Used to Rank Seed Lot Quality and Predict Field Emergence in Four Forage Species
,
2004
.
[6]
R. H. Ellis,et al.
Seed and seedling vigour in relation to crop growth and yield
,
1992,
Plant Growth Regulation.
[7]
M. Kruse.
Application of the Normal Distribution for Testing the Potential of the Controlled Deterioration Test
,
1999
.
[8]
S. R. Draper,et al.
The isolation of carrot embryos and their measurement by machine vision for the prediction of crop uniformity
,
1986
.
[9]
R. Ellis.
The quantification of ageing and survival in orthodox seeds
,
1981
.
[10]
E. H. Roberts,et al.
Viability of Seeds
,
1972
.