The common vetch(Vicia sativa)is an important self-pollinating annual legume forage in high altitude area,with the advantages of wide adaptability,strong cold resistance and high nutritional value,which alleviates the problem of winter-forage lack in high altitude area and plays an irreplaceable role in grassland agriculture system in China.However,pod shattering would casue serious loss of seeds.At present,the criteria for determining the optimum harvest time of vetch seeds and the mechanism of its pod sha...
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